Diamond Challenge Sculls
The Diamond Challenge Sculls is a rowing event for men's single sculls at the annual Henley Royal Regatta on the River Thames at Henley-on-Thames in England. First run in 1844, it is open to male scullers from all eligible rowing clubs.
The Diamond Challenge Sculls, the Wingfield Sculls and the London Cup in the Metropolitan Regatta make up the "Triple Crown" of the three premier single sculling events in the United Kingdom.
Past winners
1920 to 1939
1946 to 1999
| Year | Winner | Club | Runner-up | Club | ref |
| 1946 | Jean Séphériadès | SN Basse Seine, FRA | John B. Kelly Jr. | US Navy, USA | |
| 1947 | John B. Kelly Jr. | University of Penn, USA | Carl H Fronsdal | Bergens Roklubb, NOR | |
| 1948 | Mervyn Wood | NSW Police RC, AUS | Bert Bushnell | Maidenhead RC | |
| 1949 | John B. Kelly Jr. | University of Penn, USA | Jack H Trinsey | Notre Dame Club of Phila, USA | |
| 1950 | Antony Rowe | Leander Club | Rob van Mesdag | Trinity College, Dublin | |
| 1951 | Tony Fox | Pembroke College, Cm | Erik Larsen | Koge Roklubb, DEN | |
| 1952 | Mervyn Wood | Sydney Rowing Club, AUS | Tony Fox | London Rowing Club | |
| 1953 | Tony Fox | London Rowing Club | Robert George | Union Nautique de Liege, BEL | |
| 1954 | Perica Vlašić | Mornar Club, YUG | Alain Colomb | Aviron Romand, SWI | |
| 1955 | Teodor Kocerka | AZS Bydgoszsz, POL | Sidney Rand | Royal Air Force | |
| 1956 | Teodor Kocerka | AZS Bydgoszsz, POL | Tony Fox | London Rowing Club | |
| 1957 | Stuart Mackenzie | Sydney RC, AUS | Vyacheslav Ivanov | Krasnoe Znamia, USSR | |
| 1958 | Stuart Mackenzie | Sydney RC, AUS | Vyacheslav Ivanov | Central Army Club, USSR | |
| 1959 | Stuart Mackenzie | Sydney RC, AUS | Harry Parker | Vesper BC, USA | |
| 1960 | Stuart Mackenzie | Leander Club | Teodor Kocerka | AZS Szczecin, POL | |
| 1961 | Stuart Mackenzie | Mosman RC, AUS | Oleg Tyurin | Trud Club, Leningrad | |
| 1962 | Stuart Mackenzie | Leander Club | William L. Barry | Quintin BC | |
| 1963 | Gottfried Kottmann | Belvoir RC, SWI | William L. Barry | Quintin BC | |
| 1964 | Seymour Cromwell | Nonpareil RC, USA | Alberto Demiddi | Club de Regatas Rosario, ARG | |
| 1965 | Donald Spero | NY AC, USA | Hugh Wardell-Yerburgh | Bristol RC | |
| 1966 | Achim Hill | BSGM Baumschuleneweg, GDR | Jan Wienese | Roei en Zeilverenging de Amstel | |
| 1967 | Martin Studach | Grasshopper Club Zürich, SWI | Jochen Meißner | Mannheimer Rv Amiciitia Von 1876 | |
| 1968 | Hugh Wardell-Yerburgh | Eton Vikings | Kenny Dwan | Poplar, Blackwall & District RC | |
| 1969 | Joachim Böhmer | SC Dynamo Berlin, GER | William B Tytus | Seattle Tennis Club | |
| 1970 | Jochen Meißner | Mannheimer RV Amicitia, GER | Patrick Delafield | Tideway Scullers' School | |
| 1971 | Alberto Demiddi | Club de Regatas Rosario, ARG | Jim Dietz | New York AC, USA | |
| 1972 | Aleksandr Timoshinin | WMF Moscow, USSR | Seán Drea | Vesper BC, USA | |
| 1973 | Seán Drea | Neptune Rowing Club, IRE | David Sturge | Lady Margaret BC | |
| 1974 | Seán Drea | Neptune RC, IRE | Kenny Dwan | Poplar, Blackwall & District RC | |
| 1975 | Seán Drea | Neptune RC, IRE | Jim Dietz | New York AC | |
| 1976 | Ted Hale | Sydney Rowing Club, AUS | Peter Zeun | Peterborough City RC | |
| 1977 | Tim Crooks | Leander Club | Jim Dietz | New York AC | |
| 1978 | Tim Crooks | Leander Club | Hugh Matheson | Thames Tradesmen's RC | |
| 1979 | Hugh Matheson | Nottingham Rowing Club | Johan Ghoos | Antwerpse RV, BEL | |
| 1980 | Ricardo Ibarra | Mar del Plata, ARG | Rolf Thorsen | Horten Roklubb, NOR | |
| 1981 | Chris Baillieu | Leander Club | Chris Howell | University of London RC | |
| 1982 | Chris Baillieu | Leander Club | Allan Whitwell | Thames Tradesmen's RC | |
| 1983 | Steve Redgrave | Marlow Rowing Club | Tim Crooks | Kingston RC | |
| 1984 | Chris Baillieu | Leander Club | Bjarne Eltang | Danske SR, DEN | |
| 1985 | Steve Redgrave | Marlow Rowing Club | Brad Alan Lewis | Dirty Dozen RC, USA | |
| 1986 | Bjarne Eltang | Danske Stud RK, DEN | Steve Redgrave | Marlow Rowing Club | |
| 1987 | Peter-Michael Kolbe | RC Hamburg, GER | Vasil Yakusha | Soviet Army, USSR | |
| 1988 | Hamish McGlashan | Melbourne University BC | Andrew Sudduth | Harvard University, USA | |
| 1989 | Václav Chalupa | Dukla Praha, CZE | Kajetan Broniewski | AZS-AWF Warszawa, POL | |
| 1990 | Eric Verdonk | Koru RC, NZL | Wim Van Belleghem | Bruges Trimm-en, BEL | |
| 1991 | Wim Van Belleghem | Royal Club Nautique de Gand, BEL | Eric Verdonk | Koru RC, NZL | |
| 1992 | Rorie Henderson | Leander Club | Paul Reedy | Melbourne University BC | |
| 1993 | Thomas Lange | Ruderverein Bollberg-Halle, GER | Václav Chalupa | Dukla Praha, CZE | |
| 1994 | Xeno Müller | Grasshopper Club Zurich, SWI | Martin Haldbo Hansen | Denmark Rocenter | |
| 1995 | Jüri Jaanson | Parnu Rowing Club, EST | Xeno Müller | Grasshopper Club, Zurich | |
| 1996 | Merlin L. O. Vervoorn | DSR Proteus-Eretes, Delft, NED | Andy. R Bihrer | Grasshopper Club, Zurich | |
| 1997 | Greg Searle | Molesey Boat Club | Peter Haining | Auriol Kensington RC | |
| 1998 | Jamie Koven | Brown Alumni, USA | Greg Searle | Molesey Boat Club | |
| 1999 | Marcel Hacker | RC Magdeburg, GER | Jamie Koven | Riverside Boat Club, USA |