World heavyweight boxing championship records and statistics
Below is a list of world heavyweight boxing championship records and statistics.
Championship recognition
As per International Boxing Hall Of Fame:1885–1921
World champions were initially recognized by wide public acclamation, with heavyweight champions winning and losing championship recognition solely in the ring. Retirements periodically resulted in no one, true champion being recognized, while in other cases new champions were proclaimed only to see a previously recognized champion come out of retirement. Public interest in boxing resulted in a true champion being determined by means of title claimants facing one another in the ring, with the winner being recognized as world champion.Currently, International Boxing Hall Of Fame recognizes these world heavyweight title lineages from this period:
| Date started | First champion | Date ended | Last champion | |
| 1 | August 29, 1885 | John L. Sullivan | May 15, 1905 | James J. Jeffries |
| 2 | July 3, 1905 | Marvin Hart | September 23, 1926 | Jack Dempsey |
Sanctioning organizations: 1921–present
Gradually, the role of recognizing champions in the division evolved into a more formal affair, with public acclamation being supplemented by recognition by one or more athletic commissions, sanctioning organizations, or a combination of them. The International Boxing Hall of Fame recognizes these organizations as major in boxing:- The New York State Athletic Commission. A governmental entity initially formed for the purpose of regulating boxing in the State of New York, thanks to New York's place as the epicenter of boxing from the 1930s through 1950s, the NYSAC expanded its reach to sanctioning championship bouts. This practice continued until, like the IBU, the NYSAC became a member of the WBC.
- The National Boxing Association was organized in 1921. In 1962, the organization was renamed the World Boxing Association.
- The WBC was organized in 1963.
- The IBF, which was founded in 1983 by the members of the United States Boxing Association after the USBA withdrew from membership in the WBA.
- The WBO, founded in 1988. The IBHOF started recognizing WBO as a major organization no later than August 23, 1997.
- The Ring began awarding championship belts in 1922, stopped giving belts to world champions in the 1990s, then reintroduced their title in 2002, and ignored the current ongoing world championship lineage. Under the original version of the policy, you could win the title by either defeating the reigning champion or winning a box-off between the magazine's No. 1 and No. 2 ranked contenders. A fighter could not be stripped of the title unless he lost or retired. Since May 2012, under the new policy, The Ring title can be awarded when the No. 1 and No. 2 contenders face each other or when either of them faces No. 3, No. 4 or No. 5 contender. In addition, the title can be taken away by losing the fight, not scheduling a fight for 18 months, not scheduling a fight with a top 5 contender for two years, or retiring.
Most opponents beaten in title fights
- Note: Secondary championships are not included.
All championship reigns
| Pos. | Name | Reign began-ended | Recognition | Beaten opponents | Fights |
| 1. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. WBA, IBF, WBO | 23 | |
| 2. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 22 | |
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. WBA, WBC 2. WBA, WBC 3. WBA | 21 | |
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 20 | |
| 5. | Lennox Lewis | 1. December 14, 1992 — September 24, 1994 2. February 7, 1997 — April 22, 2001 3. November 17, 2001 — February 6, 2004 | 1. WBC 2. WBA, WBC, IBF 3. WBC, IBF | 15 | |
| 5. | Vitali Klitschko | 1. June 26, 1999 — April 1, 2000 2. April 24, 2004 — November 9, 2005 3. October 11, 2008 — December 15, 2013 | 1. WBO 2. WBC 3. WBC | 15 | |
| 7. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. WBA, WBC, IBF 2. WBA, WBC | 11 | |
| 7. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 11 | |
| 9. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 10 | |
| 10. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 4. August 12, 2000 — March 3, 2001 | 1. WBA, WBC, IBF 2. WBA, IBF 3. WBA, IBF 4. WBA | 9 | |
| 10. | Anthony Joshua | 1. April 9, 2016 — June 1, 2019 2. December 7, 2019 — September 25, 2021 | WBA, IBF, WBO | 9 | |
| 12. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 12. | Deontay Wilder | January 17, 2015 — February 22, 2020 | WBC | 8 | |
| 14. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | NYSAC, NBA | 7 | |
| 15. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 | |
| 15. | Jack Dempsey | July 4, 1919 — September 23, 1926 | lineal-to-NBA and NYSAC | 6 | |
| 15. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 6 |
All championship reigns of undisputed champions/lineal champions/''The Ring'' champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.| Pos. | Name | Reign began-ended | Recognition | Beaten opponents | Fights |
| 1. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. WBA, IBF, WBO | 23 | |
| 2. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 22 | |
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. WBA, WBC 2. WBA, WBC 3. WBA | 21 | |
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 20 | |
| 5. | Lennox Lewis | 1. December 14, 1992 — September 24, 1994 2. February 7, 1997 — April 22, 2001 3. November 17, 2001 — February 6, 2004 | 1. WBC 2. WBA, WBC, IBF 3. WBC, IBF | 15 | |
| 5. | Vitali Klitschko | 1. June 26, 1999 — April 1, 2000 2. April 24, 2004 — November 9, 2005 3. October 11, 2008 — December 15, 2013 | 1. WBO 2. WBC 3. WBC | 15 | |
| 7. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. WBA, WBC, IBF 2. WBA, WBC | 11 | |
| 7. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 11 | |
| 9. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 10 | |
| 10. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 4. August 12, 2000 — March 3, 2001 | 1. WBA, WBC, IBF 2. WBA, IBF 3. WBA, IBF 4. WBA | 9 | |
| 11. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 12. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | NYSAC, NBA | 7 | |
| 12. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 7 | |
| 14. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 6 | |
| 14. | Jack Dempsey | July 4, 1919 — September 23, 1926 | lineal-to-NBA and NYSAC | 6 |
Championship reigns of undisputed/lineal/''The Ring'' champions with undisputed/lineal/''The Ring''/unified championships, victories over champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.The list only includes title reigns during which the champion:
- has won undisputed championship, The Ring championship, lineal championship
- held at least two major world heavyweight titles simultaneously
- defeated a fighter that either had to drop his own world title prior to the fight due to organization's championship policy or would become world heavyweight champion while the winner's reign was still active
| Pos. | Name | Reign began-ended | Recognition | Additional recognition | Beaten opponents | Fights | |
| 1. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. unified | 2. The Ring | 1. Chris Byrd | 23 | |
| 2. | Joe Louis | June 22, 1937 — March 1, 1949 | undisputed | The Ring | 22 | ||
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. undisputed 2. undisputed 3. WBA | The Ring | 21 | ||
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC-to-IBF | The Ring | Mike Weaver, Tim Witherspoon | 20 | |
| 5. | Lennox Lewis | 1. February 7, 1997 — April 22, 2001 2. November 17, 2001 — February 6, 2004 | 1. undisputed 2. unified | 2. The Ring | 1. Evander Holyfield | 12 | |
| 6. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. undisputed 2. unified | 1. The Ring | 11 | ||
| 6. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | lineal | 11 | ||
| 8. | Joe Frazier | March 4, 1968 — January 22, 1973 | undisputed | The Ring | 10 | ||
| 9. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 | 1. undisputed 2. unified 3. unified | 8 | |||
| 9. | Ezzard Charles | September 27, 1950 — July 18, 1951 | undisputed | The Ring | 8 | ||
| 11. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | undisputed | The Ring | 7 | ||
| 12. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | lineal | 6 | ||
| 12. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | lineal | 6 | ||
| 12. | Jack Dempsey | July 4, 1919 — September 23, 1926 | undisputed | The Ring | 6 | ||
| 15. | Rocky Marciano | September 23, 1952 — April 27, 1956 | undisputed | The Ring | 5 | ||
| 15. | George Foreman | 1. January 22, 1973 — October 30, 1974 2. November 4, 1994 — June 29, 1995 | 1. undisputed 2. unified | 1. The Ring | 5 | ||
| 17. | Tyson Fury | 1. November 28, 2015 — October 12, 2016 2. February 22, 2020 — May 18, 2024 | 1. unified 2. WBC | 1. The Ring 2. The Ring | 4 | ||
| 18. | Primo Carnera | June 29, 1933 – June 14, 1934 | undisputed | The Ring | 3 | ||
| 18. | Riddick Bowe | November 13, 1992 — November 6, 1993 | undisputed | 3 | |||
| 18. | Oleksandr Usyk | September 25, 2021 – present | undisputed | The Ring | Daniel Dubois | 3 | |
| 21. | James J. Corbett | September 7, 1892 – March 17, 1897 | lineal | lineal | 2 | ||
| 21. | Jess Willard | April 5, 1915 — July 4, 1919 | lineal | lineal | 2 | ||
| 21. | Max Schmeling | June 12, 1930 – January 7, 1931 | undisputed | The Ring | 2 | ||
| 21. | Vitali Klitschko | April 24, 2004 — November 9, 2005 | WBC | The Ring | Corrie Sanders | 2 | |
| 21. | Gene Tunney | September 23, 1926 – July 31, 1928 | undisputed | The Ring | 2 | ||
| 21. | Michael Spinks | September 21, 1985 — February 19, 1987 | IBF | The Ring | 2 | ||
| 27. | John L. Sullivan | August 29, 1885 — September 7, 1892 | lineal | lineal | 1 | ||
| 27. | Bob Fitzsimmons | March 17, 1897 — June 9, 1899 | lineal | lineal | 1 | ||
| 27. | Marvin Hart | July 3, 1905 — February 23, 1906 | lineal | lineal | 1 | ||
| 27. | Max Baer | June 14, 1934 — June 13, 1935 | undisputed | The Ring | 1 | ||
| 27. | James J. Braddock | June 13, 1935 — June 22, 1937 | undisputed | The Ring | 1 | ||
| 27. | Jersey Joe Walcott | July 18, 1951 — September 23, 1952 | undisputed | The Ring | 1 | ||
| 27. | Ingemar Johansson | June 26, 1959 — June 20, 1960 | undisputed | The Ring | 1 | ||
| 27. | Sonny Liston | September 25, 1962 — February 25, 1964 | undisputed | The Ring | 1 | ||
| 27. | Leon Spinks | February 15, 1978 — September 15, 1978 | undisputed | The Ring | 1 | ||
| 27. | Buster Douglas | February 11, 1990 — October 25, 1990 | undisputed | 1 |
Most wins in title fights
Keys:All championship reigns
The list does not include The Ring and lineal championship fights after July 2, 1921.- Note: Secondary championships are not included.
| Pos. | Name | Reign began-ended | Recognition | Title fight wins | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 27 | |
| 2. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. WBA, IBF, WBO | 25 | |
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. WBA, WBC 2. WBA, WBC 3. WBA | 22 | |
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 20 | |
| 5. | Lennox Lewis | 1. December 14, 1992 — September 24, 1994 2. February 7, 1997 — April 22, 2001 3. November 17, 2001 — February 6, 2004 | 1. WBC 2. WBA, WBC, IBF 3. WBC, IBF | 15 | |
| 5. | Vitali Klitschko | 1. June 26, 1999 — April 1, 2000 2. April 24, 2004 — November 9, 2005 3. October 11, 2008 — December 15, 2013 | 1. WBO 2. WBC 3. WBC | 15 | |
| 7. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 13 | |
| 8. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. WBA, WBC, IBF 2. WBA, WBC | 12 | |
| 9. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 10 | |
| 9. | Deontay Wilder | January 17, 2015 — February 22, 2020 | WBC | 10 | |
| 9. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 4. August 12, 2000 — March 3, 2001 | 1. WBA, WBC, IBF 2. WBA, IBF 3. WBA, IBF 4. WBA | 10 | |
| 12. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 9 | |
| 12. | Anthony Joshua | 1. April 9, 2016 – June 1, 2019 2. December 7, 2019 – September 25, 2021 | WBA, IBF, WBO | 9 | |
| 14. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | NYSAC, NBA | 8 | |
| 14. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 8 |
All championship reigns of undisputed champions/lineal champions/''The Ring'' champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.| Pos. | Name | Reign began-ended | Recognition | Title fight wins | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 27 | |
| 2. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. WBA, IBF, WBO | 25 | |
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. WBA, WBC 2. WBA, WBC 3. WBA | 22 | |
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 20 | |
| 5. | Lennox Lewis | 1. December 14, 1992 — September 24, 1994 2. February 7, 1997 — April 22, 2001 3. November 17, 2001 — February 6, 2004 | 1. WBC 2. WBA, WBC, IBF 3. WBC, IBF | 15 | |
| 5. | Vitali Klitschko | 1. June 26, 1999 — April 1, 2000 2. April 24, 2004 — November 9, 2005 3. October 11, 2008 — December 15, 2013 | 1. WBO 2. WBC 3. WBC | 15 | |
| 7. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 13 | |
| 8. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. WBA, WBC, IBF 2. WBC, WBA | 12 | |
| 9. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 10 | |
| 9. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 4. August 12, 2000 — March 3, 2001 | 1. WBA, WBC, IBF 2. WBA, IBF 3. WBA, IBF 4. WBA | 10 | |
| 11. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 9 | |
| 12. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | NYSAC, NBA | 8 | |
| 12. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 8 | |
| 14. | Rocky Marciano | September 23, 1952 — April 27, 1956 | NYSAC, NBA | 7 | |
| 15. | Jack Dempsey | July 4, 1919 — September 23, 1926 | NYSAC, NBA | 6 | |
| 15. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 | |
| 15. | Oleksandr Usyk | September 25, 2021 — present | WBA, WBC, IBF, WBO | 6 |
Championship reigns of undisputed/lineal/''The Ring'' champions with undisputed/lineal/''The Ring''/unified championships, victories over champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.The list only includes title reigns during which the champion:
- has won undisputed championship, The Ring championship, lineal championship
- held at least two major world heavyweight titles simultaneously
- defeated a fighter that either had to drop his own world title prior to the fight due to organization's championship policy or would become world heavyweight champion while the winner's reign was still active
| Pos. | Name | Reign began-ended | Recognition | Additional recognition | Title fight wins | Fights | |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | undisputed | The Ring | 27 | ||
| 2. | Wladimir Klitschko | 1. October 14, 2000 — March 8, 2003 2. April 22, 2006 — November 28, 2015 | 1. WBO 2. unified | 2. The Ring | 1. Chris Byrd | 25 | |
| 3. | Muhammad Ali | 1. February 25, 1964 – March 11, 1969 2. October 30, 1974 — February 15, 1978 3. September 15, 1978 — October 18, 1979 | 1. undisputed 2. undisputed 3. WBA | 1. The Ring 2. The Ring 3. The Ring | 22 | ||
| 4. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC-to-IBF | The Ring | Mike Weaver, Tim Witherspoon | 20 | |
| 5. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | lineal | 13 | ||
| 6. | Lennox Lewis | 1. February 7, 1997 — April 22, 2001 2. November 17, 2001 — February 6, 2004 | 1. undisputed 2. unified | 2. The Ring | 1. Evander Holyfield | 12 | |
| 6. | Mike Tyson | 1. November 22, 1986 — February 11, 1990 2. March 16, 1996 — November 9, 1996 | 1. undisputed 2. unified | 1. The Ring | 12 | ||
| 8. | Joe Frazier | March 4, 1968 — January 22, 1973 | unified | The Ring | 10 | ||
| 9. | Evander Holyfield | 1. October 25, 1990 — November 13, 1992 2. November 6, 1993 — April 22, 1994 3. November 9, 1996 — November 13, 1999 | 1. undisputed 2. unified 3. unified | 9 | |||
| 9. | Ezzard Charles | September 27, 1950 — July 18, 1951 | undisputed | The Ring | 9 | ||
| 11. | Floyd Patterson | 1. November 30, 1956 — June 26, 1959 2. June 20, 1960 — September 25, 1962 | undisputed | The Ring | 8 | ||
| 11. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | lineal | 8 | ||
| 13. | Rocky Marciano | September 23, 1952 — April 27, 1956 | undisputed | The Ring | 7 | ||
| 14. | Jack Dempsey | July 4, 1919 — September 23, 1926 | undisputed | The Ring | 6 | ||
| 14. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | lineal | 6 | ||
| 14. | Oleksandr Usyk | September 25, 2021 — present | undisputed | The Ring | Daniel Dubois | 6 | |
| 17. | George Foreman | 1. January 22, 1973 — October 30, 1974 2. November 4, 1994 — June 29, 1995 | 1. undisputed 2. unified | 1. The Ring | 5 | ||
| 17. | Tyson Fury | 1. November 28, 2015 — October 12, 2016 2. February 22, 2020 — May 19, 2024 | 1. unified 2. WBC | 1. The Ring 2. The Ring | 5 | ||
| 19. | Primo Carnera | June 29, 1933 – June 14, 1934 | undisputed | The Ring | 3 | ||
| 19. | Riddick Bowe | November 13, 1992 — November 6, 1993 | undisputed | 3 | |||
| 19. | Gene Tunney | September 23, 1926 – July 31, 1928 | undisputed | The Ring | 3 | ||
| 19. | Michael Spinks | September 21, 1985 — February 19, 1987 | IBF | The Ring | 3 | ||
| 23. | James J. Corbett | September 7, 1892 – March 17, 1897 | lineal | lineal | 2 | ||
| 23. | Jess Willard | April 5, 1915 — July 4, 1919 | lineal | lineal | 2 | ||
| 23. | Max Schmeling | June 12, 1930 – January 7, 1931 | undisputed | The Ring | 2 | ||
| 23. | Vitali Klitschko | April 24, 2004 — November 9, 2005 | WBC | The Ring | Corrie Sanders | 2 | |
| 23. | Jersey Joe Walcott | July 18, 1951 — September 23, 1952 | undisputed | The Ring | 2 | ||
| 23. | Sonny Liston | September 25, 1962 — February 25, 1964 | undisputed | The Ring | 2 | ||
| 29. | John L. Sullivan | August 29, 1885 — September 7, 1892 | lineal | lineal | 1 | ||
| 29. | Bob Fitzsimmons | March 17, 1897 — June 9, 1899 | lineal | lineal | 1 | ||
| 29. | Marvin Hart | July 3, 1905 — February 23, 1906 | lineal | lineal | 1 | ||
| 29. | Max Baer | June 14, 1934 — June 13, 1935 | undisputed | The Ring | 1 | ||
| 29. | James J. Braddock | June 13, 1935 — June 22, 1937 | undisputed | The Ring | 1 | ||
| 29. | Ingemar Johansson | June 26, 1959 — June 20, 1960 | undisputed | The Ring | 1 | ||
| 29. | Leon Spinks | February 15, 1978 — September 15, 1978 | undisputed | The Ring | 1 | ||
| 29. | Buster Douglas | February 11, 1990 — October 25, 1990 | undisputed | 1 |
Most opponents title was successfully defended against during one reign
Keys:- Note: Secondary championships are not included.
All championship reigns
| Pos. | Name | Reign began-ended | Recognition | Beaten opponents | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 21 | |
| 2. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 19 | |
| 3. | Wladimir Klitschko | April 22, 2006 — November 28, 2015 | WBA, IBF, WBO | 17 | |
| 4. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 11 | |
| 5. | Muhammad Ali | October 30, 1974 — February 15, 1978 | WBA, WBC | 10 | |
| 6. | Vitali Klitschko | October 11, 2008 - September 8, 2012 | WBC | 9 | |
| 6. | Mike Tyson | November 22, 1986 — February 11, 1990 | WBA, WBC, IBF | 9 | |
| 6. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 9 | |
| 6. | Deontay Wilder | January 17, 2015 – February 22, 2020 | WBC | 9 | |
| 10. | Lennox Lewis | February 7, 1997 — April 22, 2001 | WBA, WBC, IBF | 8 | |
| 10. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 12. | Anthony Joshua | April 9, 2016 – June 1, 2019 | WBA, IBF, WBO | 6 | |
| 12. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 6 | |
| 12. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 | |
| 15. | Rocky Marciano | September 23, 1952 — April 27, 1956 | NYSAC, NBA | 5 | |
| 15. | Jack Dempsey | July 4, 1919 — September 23, 1926 | lineal-to-NBA and NYSAC | 5 |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.| Pos. | Name | Reign began-ended | Recognition | Beaten opponents | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 21 | |
| 2. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 19 | |
| 3. | Wladimir Klitschko | April 22, 2006 — November 28, 2015 | WBA, IBF, WBO | 17 | |
| 4. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 11 | |
| 5. | Muhammad Ali | October 30, 1974 — February 15, 1978 | WBA, WBC | 10 | |
| 6. | Mike Tyson | November 22, 1986 — February 11, 1990 | WBA, WBC, IBF | 9 | |
| 6. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 9 | |
| 8. | Lennox Lewis | February 7, 1997 — April 22, 2001 | WBA, WBC, IBF | 8 | |
| 8. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 10. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 6 | |
| 10. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 | |
| 12. | Rocky Marciano | September 23, 1952 — April 27, 1956 | NYSAC, NBA | 5 | |
| 12. | Jack Dempsey | July 4, 1919 — September 23, 1926 | lineal-to-NBA and NYSAC | 5 |
Most consecutive title defenses
Keys:- Note: Secondary championships are not included.
All championship reigns
| Pos. | Name | Reign began-ended | Recognition | Title defenses | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 26 | |
| 2. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 19 | |
| 3. | Wladimir Klitschko | April 22, 2006 — November 28, 2015 | WBA, IBF, WBO | 18 | |
| 4. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 13 | |
| 5. | Muhammad Ali | October 30, 1974 — February 15, 1978 | WBA, WBC | 10 | |
| 5. | Deontay Wilder | January 17, 2015 – February 22, 2020 | WBC | 10 | |
| 7. | Vitali Klitschko | October 11, 2008 - September 8, 2012 | WBC | 9 | |
| 7. | Mike Tyson | November 22, 1986 — February 11, 1990 | WBA, WBC, IBF | 9 | |
| 7. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 9 | |
| 7. | Lennox Lewis | February 7, 1997 — April 22, 2001 | WBA, WBC, IBF | 9 | |
| 11. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 12. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 7 | |
| 13. | Rocky Marciano | September 23, 1952 — April 27, 1956 | NYSAC, NBA | 6 | |
| 13. | Anthony Joshua | April 9, 2016 – June 1, 2019 | WBA, IBF, WBO | 6 | |
| 13. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship. For the purpose of this list, successful title defenses that ended in a draw are also included.| Pos. | Name | Reign began-ended | Recognition | Title defenses | Fights |
| 1. | Joe Louis | June 22, 1937 — March 1, 1949 | NYSAC, NBA | 26 | |
| 2. | Larry Holmes | June 9, 1978 — September 21, 1985 | WBC, IBF | 19 | |
| 3. | Wladimir Klitschko | April 22, 2006 — November 28, 2015 | WBA, IBF, WBO | 18 | |
| 4. | Tommy Burns | February 23, 1906 — December 26, 1908 | lineal | 13 | |
| 5. | Muhammad Ali | October 30, 1974 — February 15, 1978 | WBA, WBC | 10 | |
| 6. | Mike Tyson | November 22, 1986 — February 11, 1990 | WBA, WBC, IBF | 9 | |
| 6. | Joe Frazier | March 4, 1968 — January 22, 1973 | NYSAC, WBA, WBC | 9 | |
| 6. | Lennox Lewis | February 7, 1997 — April 22, 2001 | WBA, WBC, IBF | 9 | |
| 9. | Ezzard Charles | September 27, 1950 — July 18, 1951 | NBA, NYSAC | 8 | |
| 10. | James J. Jeffries | June 9, 1899 — May 13, 1905 | lineal | 7 | |
| 11. | Rocky Marciano | September 23, 1952 — April 27, 1956 | NYSAC, NBA | 6 | |
| 11. | Jack Johnson | December 26, 1908 — April 5, 1915 | lineal | 6 | |
| 13. | Jack Dempsey | July 4, 1919 — September 23, 1926 | lineal-to-NBA and NYSAC | 5 | |
| 13. | Oleksandr Usyk | September 25, 2021 — present | WBA, WBC, IBF, WBO | 5 |
Longest title reigns
Keys:- Note: Secondary championships are not included.
Combined reigns
All championship reigns
The list does not include The Ring and lineal championship fights after July 2, 1921.As of 8 April 2025.
| Pos. | Name | Combined reign | Days as champion | Number of reigns | Title recognition |
| 1. | Wladimir Klitschko | 12 years, 0 months, 0 days | 4 382 | 2 | WBA, IBF, WBO |
| 2. | Joe Louis | 11 years, 8 months, 8 days | 4 270 | 1 | NYSAC, NBA |
| 3. | Muhammad Ali | 9 years, 5 months, 5 days | 3 443 | 3 | NYSAC, WBA, WBC |
| 4. | Lennox Lewis | 8 years, 5 months, 13 days | 3 086 | 3 | WBA, WBC, IBF |
| 5. | Vitali Klitschko | 7 years, 5 months, 28 days | 2 735 | 3 | WBC, WBO |
| 6. | Larry Holmes | 7 years, 3 months, 12 days | 2 661 | 1 | WBC, IBF |
| 7. | Jack Dempsey | 7 years, 2 months, 19 days | 2 638 | 1 | NYSAC, NBA |
| 8. | John L. Sullivan | 7 years, 0 months, 9 days | 2 566 | 1 | lineal |
| 9. | Jack Johnson | 6 years, 3 months, 11 days | 2 292 | 1 | lineal |
| 10. | Evander Holyfield | 6 years, 1 month, 1 day | 2 223 | 4 | WBA, WBC, IBF |
| 11. | James J. Jeffries | 5 years, 11 months, 4 days | 2 156 | 1 | lineal |
| 12. | Tyson Fury | 5 years, 1 months, 12 days | 1 866 | 2 | WBA, WBC, IBF, WBO |
| 13. | Deontay Wilder | 5 years, 1 months, 5 days | 1 859 | 1 | WBC |
| 14. | Anthony Joshua | 4 years, 11 months, 10 days | 1 806 | 2 | IBF, WBA, WBO |
| 15. | Joe Frazier | 4 years, 10 months, 18 days | 1 785 | 1 | NYSAC, WBA, WBC |
All championship reigns of undisputed champions/lineal champions/''The Ring'' champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.As of 8 April 2025.
| Pos. | Name | Combined reign | Days as champion | Number of reigns | Title recognition |
| 1. | Wladimir Klitschko | 12 years, 0 months, 0 days | 4 382 | 2 | WBA, IBF, WBO |
| 2. | Joe Louis | 11 years, 8 months, 8 days | 4 270 | 1 | NYSAC, NBA |
| 3. | Muhammad Ali | 9 years, 5 months, 5 days | 3 443 | 3 | NYSAC, WBA, WBC |
| 4. | Lennox Lewis | 8 years, 5 months, 13 days | 3 086 | 3 | WBA, WBC, IBF |
| 5. | Vitali Klitschko | 7 years, 5 months, 28 days | 2 735 | 3 | WBC, WBO |
| 6. | Larry Holmes | 7 years, 3 months, 12 days | 2 661 | 1 | WBC, IBF |
| 7. | Jack Dempsey | 7 years, 2 months, 19 days | 2 638 | 1 | NYSAC, NBA |
| 8. | John L. Sullivan | 7 years, 0 months, 10 days | 2 566 | 1 | lineal |
| 9. | Jack Johnson | 6 years, 3 months, 11 days | 2 292 | 1 | lineal |
| 10. | Evander Holyfield | 6 years, 1 month, 1 day | 2 223 | 4 | WBA, WBC, IBF |
| 11. | James J. Jeffries | 5 years, 11 months, 4 days | 2 156 | 1 | lineal |
| 12. | Tyson Fury | 5 years, 1 months, 12 days | 1 866 | 2 | WBA, WBC, IBF, WBO |
| 13. | Joe Frazier | 4 years, 10 months, 18 days | 1 785 | 1 | NYSAC, WBA, WBC |
| 14. | Floyd Patterson | 4 years, 10 months, 0 days | 1 765 | 2 | NYSAC, NBA |
| 15. | James J. Corbett | 4 years, 6 months, 10 days | 1 652 | 1 | lineal |
Championship reigns of undisputed/lineal/''The Ring'' champions with undisputed/lineal/''The Ring''/unified championships, victories over champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.The list only includes title reigns during which the champion:
- has won undisputed championship, The Ring championship, lineal championship
- held at least two major world heavyweight titles simultaneously
- defeated a fighter that either had to drop his own world title prior to the fight due to organization's championship policy or would later become world heavyweight champion while the winner's reign was still active
| Pos. | Name | Combined reign | Days as champion | Number of reigns | Title recognition |
| 1. | Wladimir Klitschko | 12 years, 0 months, 0 days | 4 382 | 2 | WBA, IBF, WBO |
| 2. | Joe Louis | 11 years, 8 months, 8 days | 4 270 | 1 | NYSAC, NBA |
| 3. | Muhammad Ali | 9 years, 5 months, 5 days | 3 443 | 3 | NYSAC, WBA, WBC |
| 4. | Larry Holmes | 7 years, 3 months, 12 days | 2 661 | 1 | WBC, IBF |
| 5. | Jack Dempsey | 7 years, 2 months, 19 days | 2 638 | 1 | NYSAC, NBA |
| 6. | John L. Sullivan | 7 years, 0 months, 10 days | 2 566 | 1 | lineal |
| 7. | Lennox Lewis | 6 years, 8 months, 3 days | 2 437 | 2 | WBA, WBC, IBF |
| 8. | Jack Johnson | 6 years, 3 months, 11 days | 2 292 | 1 | lineal |
| 9. | James J. Jeffries | 5 years, 11 months, 4 days | 2 156 | 1 | lineal |
| 10. | Evander Holyfield | 5 years, 6 months, 12 days | 2 020 | 3 | WBA, WBC, IBF |
| 11. | Tyson Fury | 5 years, 1 months, 12 days | 1 866 | 2 | WBA, WBC, IBF, WBO |
| 12. | Joe Frazier | 4 years, 10 months, 18 days | 1 785 | 1 | NYSAC, WBA, WBC |
| 13. | Floyd Patterson | 4 years, 10 months, 0 days | 1 765 | 2 | NYSAC, NBA |
| 14. | James J. Corbett | 4 years, 6 months, 10 days | 1 652 | 1 | lineal |
| 15. | Jess Willard | 4 years, 2 months, 29 days | 1 551 | 1 | lineal |
Individual reigns
Below is a list of longest reigning heavyweight champions in boxing measured by the individual's longest reign. Both The Ring and lineal championships are included. Career total time as champion does not apply.All championship reigns
As of 8 April 2025.| Pos. | Name | Title Reign | Title recognition |
| 1. | Joe Louis | 11 years, 8 months, 8 days | NYSAC, NBA |
| 2. | Wladimir Klitschko | 9 years, 7 months and 6 days | IBF |
| 3. | Larry Holmes | 7 years, 3 months, 12 days | WBC-to-IBF |
| 4. | Jack Dempsey | 7 years, 2 months, 19 days | lineal |
| 5. | John L. Sullivan | 7 years, 0 months, 9 days | lineal |
| 6. | Jack Johnson | 6 years, 3 months, 10 days | lineal |
| 7. | Muhammad Ali | 5 years, 11 months, 9 days | The Ring/Lineal, |
| 8. | James J. Jeffries | 5 years, 11 months, 4 days | lineal |
| 9. | Vitali Klitschko | 5 years, 2 months, 4 days | WBC |
| 10. | Deontay Wilder | 5 years, 1 month 5 days | WBC |
| 11. | Joe Frazier | 4 years, 10 months, 18 days | NYSAC |
| 12. | James J. Corbett | 4 years, 6 months, 10 days | lineal |
| 13. | Jess Willard | 4 years, 2 months, 29 days | lineal |
| 14. | Tyson Fury | 4 years, 2 months, 26 days | WBC |
| 15. | Lennox Lewis | 4 years, 2 months, 15 days | WBC |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.As of 6 September 2025.
| Pos. | Name | Title Reign | Title recognition |
| 1. | Joe Louis | 11 years, 8 months, 8 days | lineal |
| 2. | Wladimir Klitschko | 9 years, 7 months and 6 days | IBF |
| 3. | Larry Holmes | 7 years, 3 months, 12 days | WBC-to-IBF |
| 4. | Jack Dempsey | 7 years, 2 months, 19 days | lineal |
| 5. | John L. Sullivan | 7 years, 0 months, 9 days | lineal |
| 6. | Jack Johnson | 6 years, 3 months, 10 days | lineal |
| 7. | Muhammad Ali | 5 years, 11 months, 9 days | The Ring/Lineal, |
| 8. | James J. Jeffries | 5 years, 11 months, 4 days | lineal |
| 9. | Joe Frazier | 4 years, 10 months, 18 days | NYSAC |
| 10. | James J. Corbett | 4 years, 6 months, 10 days | lineal |
| 11. | Jess Willard | 4 years, 2 months, 29 days | lineal |
| 12. | Tyson Fury | 4 years, 2 months, 26 days | WBC |
| 13. | Lennox Lewis | 4 years, 2 months, 15 days | WBC |
| 14. | Rocky Marciano | 3 years, 11 months, 29 days | lineal |
| 15. | Oleksandr Usyk | 3 years, 11 months, 12 days | WBC |
Title fight finishes
Fastest stoppages in title fights — 1st round stoppages
| Date | Fight | Method | Round | Time | Title | Source |
| 18 April 1998 | Herbie Hide def. Damon Reed | TKO | 1 | 0:52 | WBO | |
| 21 May 2005 | Lamon Brewster def. Andrew Golota | TKO | 1 | 0:52 | WBO | |
| 14 November 1944 | Joe Louis def. Johnny Davis | KO | 1 | 0:53 | NYSAC | |
| 6 April 1900 | James J. Jeffries def. John Finnegan | KO | 1 | 0:55 | Lineal | |
| 10 December 1982 | Michael Dokes def. Mike Weaver | TKO | 1 | 1:03 | WBA | |
| 4 July 1907 | Tommy Burns def. Bill Squires | KO | 1 | 1:28 | Lineal | |
| 17 March 1908 | Tommy Burns def. Jem Roche | KO | 1 | 1:28 | Lineal | |
| 27 June 1988 | Mike Tyson def. Michael Spinks | KO | 1 | 1:31 | WBA, WBC, IBF | |
| 21 July 1989 | Mike Tyson def. Carl Williams | TKO | 1 | 1:33 | WBA, WBC, IBF | |
| 4 October 1997 | Lennox Lewis def. Andrew Golota | KO | 1 | 1:35 | WBC | |
| 22 April 1969 | Joe Frazier def. Dave Zyglewicz | KO | 1 | 1:36 | NYSAC | |
| 7 September 1996 | Mike Tyson def. Bruce Seldon | TKO | 1 | 1:49 | WBA | |
| 1 September 1973 | George Foreman def. José Roman | KO | 1 | 2:00 | WBA, WBC | |
| 22 June 1938 | Joe Louis Joe Louis vs. [Max Schmeling II|def.] Max Schmeling | KO | 1 | 2:04 | NBA, NYSAC | |
| 25 September 1962 | Sonny Liston def. Floyd Patterson | KO | 1 | 2:06 | NYSAC, WBA | |
| 18 September 1946 | Joe Louis def. Tami Mauriello | KO | 1 | 2:09 | NBA, NYSAC | |
| 22 July 1963 | Sonny Liston Sonny Liston vs. [Floyd Patterson II|def.] Floyd Patterson | KO | 1 | 2:10 | WBA, WBC | |
| 25 May 1965 | Muhammad Ali Muhammad Ali vs. [Sonny Liston II|def.] Sonny Liston | KO | 1 | 2:12 | WBC | |
| 12 December 1986 | James Smith James Smith II|def.] Tim Witherspoon | KO | 1 | 2:12 | WBA | |
| 18 May 2019 | Deontay Wilder def. Dominic Breazeale | KO | 1 | 2:17 | WBC | |
| 28 March 1906 | Tommy Burns def. Jim O'Brien | KO | 1 | 2:18 | Lineal | |
| 6 February 1993 | Riddick Bowe def. Michael Dokes | TKO | 1 | 2:19 | WBA, IBF | |
| 17 April 1939 | Joe Louis def. Jack Roper | KO | 1 | 2:20 | NBA, NYSAC | |
| 15 May 1953 | Rocky Marciano Rocky Marciano vs. [Jersey Joe Walcott II|def.] Jersey Joe Walcott | KO | 1 | 2:25 | NBA, NYSAC | |
| 25 January 1939 | Joe Louis def. John Henry Lewis | KO | 1 | 2:29 | NBA, NYSAC | |
| 28 March 1906 | Tommy Burns def. James J. Walker | KO | 1 | 2:55 | Lineal | |
| 9 January 1942 | Joe Louis def. Buddy Baer | KO | 1 | 2:56 | NBA, NYSAC | |
| 4 November 2017 | Deontay Wilder def. Bermane Stiverne | KO | 1 | 2:59 | WBC | |
| 19 March 2011 | Vitali Klitschko def. Odlanier Solís | KO | 1 | 2:59 | WBC |
Fastest stoppages in title fights — undisputed/''The Ring''/lineal/unified championship on the line
| Date | Fight | Method | Round | Time | Title | Source |
| 14 November 1944 | Joe Louis def. Johnny Davis | KO | 1 | 0:53 | NYSAC | |
| 6 April 1900 | James J. Jeffries def. John Finnegan | KO | 1 | 0:55 | Lineal | |
| 4 July 1907 | Tommy Burns def. Bill Squires | KO | 1 | 1:28 | Lineal | |
| 17 March 1908 | Tommy Burns def. Jem Roche | KO | 1 | 1:28 | Lineal | |
| 27 June 1988 | Mike Tyson def. Michael Spinks | KO | 1 | 1:31 | WBA, WBC, IBF | |
| 21 July 1989 | Mike Tyson def. Carl Williams | TKO | 1 | 1:33 | WBA, WBC, IBF | |
| 1 September 1973 | George Foreman def. José Roman | KO | 1 | 2:00 | WBA, WBC | |
| 22 June 1938 | Joe Louis def. Max Schmeling | KO | 1 | 2:04 | NBA, NYSAC | |
| 25 September 1962 | Sonny Liston def. Floyd Patterson | KO | 1 | 2:06 | NYSAC, WBA | |
| 18 September 1946 | Joe Louis def. Tami Mauriello | KO | 1 | 2:09 | NBA, NYSAC | |
| 22 July 1963 | Sonny Liston def. Floyd Patterson | KO | 1 | 2:10 | WBA, WBC | |
| 25 May 1965 | Muhammad Ali def. Sonny Liston | KO | 1 | 2:12 | WBC | |
| 28 March 1906 | Tommy Burns def. Jim O'Brien | KO | 1 | 2:18 | Lineal | |
| 6 February 1993 | Riddick Bowe def. Michael Dokes | TKO | 1 | 2:19 | WBA, IBF | |
| 17 April 1939 | Joe Louis def. Jack Roper | KO | 1 | 2:20 | NBA, NYSAC | |
| 15 May 1953 | Rocky Marciano def. Jersey Joe Walcott | KO | 1 | 2:25 | NBA, NYSAC | |
| 25 January 1939 | Joe Louis def. John Henry Lewis | KO | 1 | 2:29 | NBA, NYSAC | |
| 28 March 1906 | Tommy Burns def. James J. Walker | KO | 1 | 2:55 | Lineal | |
| 9 January 1942 | Joe Louis def. Buddy Baer | KO | 1 | 2:56 | NBA, NYSAC | |
| 29 March 1940 | Joe Louis def. Johnny Paychek | TKO | 2 | 0:15 | NBA, NYSAC | |
| 22 May 1993 | Riddick Bowe def. Jesse Ferguson | KO | 2 | 0:17 | WBA | |
| 26 August 1904 | James J. Jeffries def. Jack Munroe | TKO | 2 | 0:45 | Lineal | |
| 18 November 1970 | Joe Frazier def. Bob Foster | KO | 2 | 0:49 | WBA, WBC | |
| 14 September 1923 | Jack Dempsey def. Luis Ángel Firpo | KO | 2 | 0:57 | NBA, NYSAC | |
| 17 February 1941 | Joe Louis def. Gus Dorazio | KO | 2 | 1:30 | NBA, NYSAC | |
| 26 March 1974 | George Foreman def. Ken Norton | TKO | 2 | 2:00 | WBA, WBC | |
| 22 January 1973 | George Foreman def. Joe Frazier | TKO | 2 | 2:26 | WBA, WBC | |
| 15 July 2000 | Lennox Lewis def. Francois Botha | TKO | 2 | 2:39 | WBC, IBF | |
| 29 April 2000 | Lennox Lewis def. Michael Grant | KO | 2 | 2:53 | WBC, IBF | |
| 21 March 1988 | Mike Tyson def. Tony Tubbs | TKO | 2 | 2:54 | WBA, WBC, IBF |
Most opponents beaten in title fights by stoppage
Keys:| Name | Finished opponents | Fights | |
| 1. | Joe Louis | 20 | |
| 2. | Wladimir Klitschko | 18 | |
| 3. | Larry Holmes | 14 | |
| 4. | Muhammad Ali | 13 | |
| 5. | Vitali Klitschko | 12 | |
| 6. | Lennox Lewis | 11 | |
| 7. | Mike Tyson | 9 | |
| 7. | Tommy Burns | 9 | |
| 9. | Deontay Wilder | 8 | |
| 9. | Joe Frazier | 8 | |
| 11. | Floyd Patterson | 7 | |
| 11. | Anthony Joshua | 7 | |
| 13. | Rocky Marciano | 5 | |
| 13. | James J. Jeffries | 5 | |
| 13. | Ezzard Charles | 5 | |
| 13. | Jack Dempsey | 5 |
Most title fight wins by stoppage
Keys:| Name | Title fight finishes | Fights | |
| 1. | Joe Louis | 23 | |
| 2. | Wladimir Klitschko | 19 | |
| 3. | Muhammad Ali | 14 | |
| 3. | Larry Holmes | 14 | |
| 5. | Vitali Klitschko | 12 | |
| 6. | Lennox Lewis | 11 | |
| 6. | Tommy Burns | 11 | |
| 8. | Mike Tyson | 10 | |
| 9. | Deontay Wilder | 9 | |
| 10. | Joe Frazier | 8 | |
| 10. | Floyd Patterson | 8 | |
| 11. | Anthony Joshua | 7 | |
| 12. | Rocky Marciano | 6 | |
| 12. | James J. Jeffries | 6 | |
| 12. | Ezzard Charles | 6 |
Highest knockout-to-beat-opponent percentage in title fights
Keys:| Name | Opponents fought | Opponents stopped | Percentage | Fights | |
| 1. | Rocky Marciano | 5 | 5 | 100% | |
| 2. | Deontay Wilder | 9 | 8 | 88.89% | |
| 3. | Joe Louis | 23 | 20 | 86.96% | |
| 4. | Tommy Burns | 12 | 9 | 75% | |
| 5. | Joe Frazier | 11 | 8 | 72.73% | |
| 6. | Jack Dempsey | 7 | 5 | 71.43% | |
| 6. | James J. Jeffries | 7 | 5 | 71.43% | |
| 8. | Vitali Klitschko | 17 | 12 | 70.59% | |
| 9. | Floyd Patterson | 10 | 7 | 70% | |
| 9. | Anthony Joshua | 10 | 7 | 70% | |
| 11. | Wladimir Klitschko | 26 | 18 | 69.23% | |
| 12. | Lennox Lewis | 17 | 11 | 64.71% | |
| 13. | Mike Tyson | 14 | 9 | 64.29% | |
| 14. | Muhammad Ali | 22 | 13 | 59.09% | |
| 15. | Larry Holmes | 24 | 14 | 58.33% |
Highest knockout-to-win percentage in title fights
Keys:| Name | Title fights | Title fight stoppages | Percentage | Fights | |
| 1. | Rocky Marciano | 7 | 6 | 85.71% | |
| 2. | Joe Louis | 28 | 23 | 82.14% | |
| 3. | Tommy Burns | 15 | 11 | 73.33% | |
| 4. | Vitali Klitschko | 17 | 12 | 70.59% | |
| 5. | Deontay Wilder | 13 | 9 | 69.23% | |
| 6. | Joe Frazier | 12 | 8 | 66.67% | |
| 6. | James J. Jeffries | 9 | 6 | 66.67% | |
| 8. | Wladimir Klitschko | 29 | 19 | 65.52% | |
| 9. | Lennox Lewis | 17 | 11 | 64.71% | |
| 10. | Mike Tyson | 16 | 10 | 62.5% | |
| 11. | Jack Dempsey | 8 | 5 | 62.5% | |
| 12. | Floyd Patterson | 13 | 8 | 61.54% | |
| 13. | Anthony Joshua | 12 | 7 | 58.33% | |
| 14. | Jack Johnson | 7 | 4 | 57.14% | |
| 14. | George Foreman | 7 | 4 | 57.14% |
Champions by age
Keys:- Note: Secondary championships are not included.
Oldest champions
This is the list of the oldest heavyweight champions ordered by age at their last day as champion.
All championship reigns
| Name | Recognition | Last day as champion | Age | Source | |
| 1 | George Foreman | IBF | June 29, 1995 | 46 years, 5 months, 18 days | |
| 2 | Vitali Klitschko | WBC | December 16, 2013 | 42 years, 2 months, 26 days | |
| 3 | Wladimir Klitschko | WBA, IBF, WBO | November 28, 2015 | 39 years, 8 months, 3 days | |
| 4 | Oleksandr Usyk | WBA, WBC, WBO | Present | ||
| 5 | Oleg Maskaev | WBC | March 8, 2008 | 39 years, 6 days | |
| 6 | Jersey Joe Walcott | NBA, NYSAC | September 23, 1952 | 38 years, 7 months, 23 days | |
| 7 | Lennox Lewis | WBC | February 6, 2004 | 38 years, 5 months, 4 days | |
| 8 | Evander Holyfield | WBA | March 3, 2001 | 38 years, 4 months, 12 days | |
| 9 | Corrie Sanders | WBO | February 1, 2004 | 38 years, 25 days | |
| 10 | Muhammad Ali | WBA | October 18, 1979 | 37 years, 9 months, 1 day |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.| Name | Recognition | Last day as champion | Age | Source | |
| 1 | Wladimir Klitschko | WBA, IBF, WBO | November 28, 2015 | 39 years, 8 months, 3 days | |
| 2 | Oleksandr Usyk | WBA, WBC, WBO | Present | ||
| 3 | Jersey Joe Walcott | NBA, NYSAC | September 23, 1952 | 38 years, 7 months, 23 days | |
| 4 | Lennox Lewis | WBC | February 6, 2004 | 38 years, 5 months, 4 days | |
| 5 | Muhammad Ali | WBA | October 18, 1979 | 37 years, 9 months, 1 day | |
| 6 | Jess Willard | Lineal | July 4, 1919 | 37 years, 6 months, 5 days | |
| 7 | Jack Johnson | Lineal | April 5, 1915 | 37 years, 0 months, 5 days | |
| 8 | Bob Fitzsimmons | Lineal | March 17, 1897 | 36 years, 0 months, 14 days | |
| 9 | Larry Holmes | IBF | September 21, 1985 | 35 years, 10 months, 18 days | |
| 10 | Tyson Fury | WBC | May 18, 2024 | 35 years, 9 months, 7 days |
Youngest champions
As of ,.All championship reigns
| Name | Recognition | Date | Age | Source | |
| 1 | Mike Tyson | WBC | November 22, 1986 | 20 years, 4 months, 23 days | |
| 2 | Floyd Patterson | NBA, NYSAC | November 30, 1956 | 21 years, 10 months, 26 days | |
| 3 | Muhammad Ali | WBA, WBC | February 25, 1964 | 22 years, 1 month, 8 days | |
| 4 | Joe Louis | NBA, NYSAC | June 22, 1937 | 23 years, 1 month, 9 days | |
| 5 | Jack Dempsey | Lineal | July 4, 1919 | 24 years, 0 months, 10 days | |
| 6 | George Foreman | WBA, WBC | February 22, 1973 | 24 years, 0 months, 12 days | |
| 7 | Joe Frazier | NYSAC | March 4, 1968 | 24 years, 1 month, 21 days | |
| 8 | James J. Jeffries | Lineal | June 9, 1899 | 24 years, 1 month, 25 days | |
| 9 | Michael Dokes | WBA | December 10, 1982 | 24 years, 4 months | |
| 10 | Wladimir Klitschko | WBO | October 14, 2000 | 24 years, 6 months, 19 days |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.| Name | Recognition | Date | Age | Source | |
| 1 | Mike Tyson | WBC | November 22, 1986 | 20 years, 4 months, 23 days | |
| 2 | Floyd Patterson | NBA, NYSAC | November 30, 1956 | 21 years, 10 months, 26 days | |
| 3 | Muhammad Ali | WBA, WBC | February 25, 1964 | 22 years, 8 days | |
| 4 | Joe Louis | NBA, NYSAC | June 22, 1937 | 23 years, 1 month, 9 days | |
| 5 | Jack Dempsey | Lineal | July 4, 1919 | 24 years, 0 months, 10 days | |
| 6 | George Foreman | WBA, WBC | February 22, 1973 | 24 years, 0 months, 12 days | |
| 7 | Joe Frazier | NYSAC | March 4, 1968 | 24 years, 1 month, 21 days | |
| 8 | James J. Jeffries | Lineal | June 9, 1899 | 24 years, 1 month, 25 days | |
| 9 | Leon Spinks | WBA | February 15, 1978 | 24 years, 7 months, 4 days | |
| 10 | Tommy Burns | Lineal | January 16, 1902 | 24 years, 8 months, 6 days |
Fastest world championship wins
By time elapsed from professional debut
Ranked by the time elapsed between professional debut and world heavyweight title win.All championship reigns
| Name | Professional debut | World title win | Time elapsed | Fights | |
| 1 | Leon Spinks | January 15, 1977 | February 15, 1978 | 1 year, 1 month | |
| 2 | Mike Tyson | March 6, 1985 | November 22, 1986 | 1 year, 8 months, 16 days | |
| 3 | John Tate | May 7, 1977 | October 20, 1979 | 2 years, 5 months, 13 days | |
| 4 | Anthony Joshua | October 5, 2013 | April 9, 2016 | 2 years, 6 months, 4 days | |
| 5 | Joe Frazier | August 16, 1965 | March 4, 1968 | 2 years, 6 months, 17 days | |
| 6 | Vitali Klitschko | November 16, 1996 | June 26, 1999 | 2 years, 7 months, 10 days | |
| 7 | Joe Louis | July 7, 1934 | June 22, 1937 | 2 years, 11 months, 15 days | |
| 8 | Charles Martin | October 27, 2012 | January 16, 2016 | 3 years, 2 months, 20 days | |
| 9 | Muhammad Ali | October 29, 1960 | January 25, 1964 | 3 years, 2 months, 27 days | |
| 10 | George Foreman | June 23, 1969 | January 22, 1973 | 3 years, 6 months, 30 days |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.| Name | Professional debut | World title win | Time elapsed | Fights | |
| 1 | Leon Spinks | January 15, 1977 | February 15, 1978 | 1 year, 1 month | |
| 2 | Mike Tyson | March 6, 1985 | November 22, 1986 | 1 year, 8 months, 16 days | |
| 3 | Joe Frazier | August 16, 1965 | March 4, 1968 | 2 years, 6 months, 17 days | |
| 4 | Joe Louis | July 7, 1934 | June 22, 1937 | 2 years, 11 months, 15 days | |
| 5 | Muhammad Ali | October 29, 1960 | January 25, 1964 | 3 years, 2 months, 27 days | |
| 6 | George Foreman | June 23, 1969 | January 22, 1973 | 3 years, 6 months, 30 days | |
| 7 | James J. Jeffries | October 29, 1895 | June 9, 1899 | 3 years, 7 months, 11 days | |
| 8 | Riddick Bowe | March 6, 1989 | November 13, 1992 | 3 years, 8 months, 7 days | |
| 9 | Tommy Burns | January 16, 1902 | February 23, 1906 | 4 years, 1 month, 7 days | |
| 10 | Jess Willard | February 5, 1911 | April 5, 1915 | 4 years, 2 months |
By number of bouts fought to win world championship
Ranked by the number of bouts boxer fought at the professional level before winning world heavyweight title.All championship reigns
| Name | Professional debut | World title win | Fights | Source | |
| 1 | Leon Spinks | January 15, 1977 | February 15, 1978 | 8 | |
| 2 | James J. Corbett | March 6, 1885 | November 22, 1886 | 11 | |
| 3 | Michael Bentt | February 7, 1989 | October 29, 1993 | 12 | |
| 4 | James J. Jeffries | October 29, 1895 | June 9, 1899 | 13 | |
| 5 | Anthony Joshua | October 5, 2013 | April 9, 2016 | 16 | |
| 6 | Ray Mercer | February 24, 1989 | January 11, 1991 | 17 | |
| 7 | Tim Witherspoon | October 10, 1979 | March 9, 1984 | 19 | |
| 7 | Oleksandr Usyk | September 11, 2013 | September 25, 2021 | 19 | |
| 9 | John Tate | May 7, 1977 | October 20, 1979 | 20 | |
| 9 | Joe Frazier | August 16, 1965 | March 4, 1968 | 20 | |
| 9 | Muhammad Ali | October 29, 1960 | January 25, 1964 | 20 |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship.| Name | Professional debut | World title win | Fights | Source | |
| 1 | Leon Spinks | January 15, 1977 | February 15, 1978 | 8 | |
| 2 | James J. Corbett | March 6, 1885 | November 22, 1886 | 11 | |
| 3 | James J. Jeffries | October 29, 1895 | June 9, 1899 | 13 | |
| 4 | Oleksandr Usyk | September 11, 2013 | September 25, 2021 | 19 | |
| 5 | Joe Frazier | August 16, 1965 | March 4, 1968 | 20 | |
| 5 | Muhammad Ali | October 29, 1960 | January 25, 1964 | 20 | |
| 7 | Ingemar Johansson | December 5, 1952 | June 26, 1959 | 22 | |
| 8 | Evander Holyfield | November 15, 1984 | October 25, 1990 | 25 | |
| 8 | Tyson Fury | December 6, 2008 | November 28, 2015 | 25 | |
| 10 | Mike Tyson | March 6, 1985 | November 22, 1986 | 28 | |
| 10 | Larry Holmes | March 21, 1973 | June 9, 1978 | 28 | |
| 10 | Michael Spinks | April 16, 1977 | September 21, 1985 | 28 | |
| 10 | Jess Willard | February 5, 1911 | April 5, 1915 | 28 |
Statistics by country
The list It includes only major titles, without The Ring and lineal championships.- Note: Secondary championships are not included.
Title fight wins & beaten opponents
All championship reigns
All championship reigns of undisputed champions/lineal champions/''The Ring'' champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.| Country | No. of champions | Boxers by Name | Title wins | Beaten opponents | Fights |
| United States | 27 | John L. Sullivan, James J. Corbett, James J. Jeffries, Marvin Hart, Jack Johnson, Jess Willard, Jack Dempsey, Gene Tunney, Jack Sharkey, Max Baer, James J. Braddock, Joe Louis, Ezzard Charles, Jersey Joe Walcott, Rocky Marciano, Floyd Patterson, Sonny Liston, Muhammad Ali, Joe Frazier, George Foreman, Leon Spinks, Larry Holmes, Michael Spinks, Mike Tyson, Buster Douglas, Evander Holyfield, Riddick Bowe | 177 | 134 | |
| Ukraine | 3 | Vitali Klitschko, Wladimir Klitschko, Oleksandr Usyk | 46 | 40 | |
| Canada | 2 | Tommy Burns, Lennox Lewis* | 28 | 26 | |
| United Kingdom | 3 | Bob Fitzsimmons, Lennox Lewis*, Tyson Fury | 21 | 20 | |
| Italy | 1 | Primo Carnera | 3 | 3 | |
| Germany | 1 | Max Schmeling | 2 | 2 | |
| Sweden | 1 | Ingemar Johansson | 1 | 1 |
Championship reigns of undisputed/lineal/''The Ring'' champions with undisputed/lineal/''The Ring''/unified championships, victories over champions
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes heavyweight champions that captured undisputed championship, lineal championship or The Ring championship.The list only includes title reigns during which the champion:
- has won undisputed championship, The Ring championship, lineal championship
- held at least two major world heavyweight titles simultaneously
- defeated a fighter that either had to drop his own world title prior to the fight due to organization's championship policy or would become world heavyweight champion while the winner's reign was still active
| Country | No. of champions | Boxers by Name | Title wins | Beaten opponents | Fights |
| United States | 27 | John L. Sullivan, James J. Corbett, James J. Jeffries, Marvin Hart, Jack Johnson, Jess Willard, Jack Dempsey, Gene Tunney, Jack Sharkey, Max Baer, James J. Braddock, Joe Louis, Ezzard Charles, Jersey Joe Walcott, Rocky Marciano, Floyd Patterson, Sonny Liston, Muhammad Ali, Joe Frazier, George Foreman, Leon Spinks, Larry Holmes, Michael Spinks, Mike Tyson, Buster Douglas, Evander Holyfield, Riddick Bowe | 176 | 133 | |
| Ukraine | 3 | Vitali Klitschko, Wladimir Klitschko, Oleksandr Usyk | 33 | 28 | |
| Canada | 2 | Tommy Burns, Lennox Lewis* | 25 | 23 | |
| United Kingdom | 3 | Bob Fitzsimmons, Lennox Lewis*, Tyson Fury | 17 | 16 | |
| Italy | 1 | Primo Carnera | 3 | 3 | |
| Germany | 1 | Max Schmeling | 2 | 2 | |
| Sweden | 1 | Ingemar Johansson | 1 | 1 |
Title streaks
Only major titles, without The Ring and lineal championships, are included.All championship reigns
For the purpose of this list, successful title defenses that ended in a draw are also included.| Country | Champion | Title defenses | Beaten opponents | Fights |
| United States | Joe Louis | 26 | 21 | |
| Ukraine | Wladimir Klitschko | 18 | 17 | |
| Canada | Tommy Burns | 13 | 11 | |
| United Kingdom | Lennox Lewis | 9 | 8 | |
| Russia | Nikolai Valuev | 6 | 5 | |
| Italy | Primo Carnera | 2 | 2 | |
| Uzbekistan | Ruslan Chagaev | 2 | 2 | |
| New Zealand | Joseph Parker | 2 | 2 | |
| Germany | Max Schmeling | 1 | 1 |
Championship reigns with undisputed/lineal/''The Ring'' championships
The list does not include The Ring and lineal championship fights after July 2, 1921, although it only includes title reigns during which the champion captured undisputed championship, lineal championship or The Ring championship. For the purpose of this list, successful title defenses that ended in a draw are also included.| Country | Champion | Title defenses | Beaten opponents | Fights |
| United States | Joe Louis | 26 | 21 | |
| Ukraine | Wladimir Klitschko | 18 | 17 | |
| Canada | Tommy Burns | 13 | 11 | |
| United Kingdom | Lennox Lewis | 9 | 8 | |
| Italy | Primo Carnera | 2 | 2 | |
| Germany | Max Schmeling | 1 | 1 |