Sumire Yamanaka


Sumire Yamanaka is a Japanese professional boxer who held the IBF female atomweight title from 12 January 2024 to 5 April 2025.

Professional career

Yamanaka made her professional boxing debut on 13 December 2020, scoring a unanimous decision win over Arika Shimono at Edion Arena in Osaka.
She won the vacant WBO Asia Pacific 102-pound belt by stopping Honoka Kano in the fifth round of their bout at Tokyo's Korakuen Hall on 1 September 2022.
On 12 January 2024, Yamanaka captured the IBF female atomweight title with a unanimous decision success against defending champion Mika Iwakawa also at Korakuen Hall.
Yamanaka was scheduled to make the first defense of her title against former WBC female atomweight World champion Fabiana Bytyqi at Olympiastuetzpunkt, Heidelberg in Germany on 23 November 2024. The bout was cancelled after Bytyqi collapsed due to dehydration on the day of the weigh-in.
She faced WBC, WBA and WBO female atomweight title holder Tina Rupprecht in a contest to crown an undisputed champion for the division at the MBS Arena in Potsdam, Germany, on 5 April 2025. Yamanaka lost by majority decision with two of the ringside judges scoring the contest 99–91 and 96–95 respectively for her opponent, while the third had it a 95–95 draw.

Personal life

Sumire is the younger sister of former WBO mini-flyweight world champion Ryuya Yamanaka.

Professional boxing record

No.ResultRecordOpponentTypeRound, timeDateLocationNotes
10Win9–1Megumi WatanabeUD825 Oct 2025EDION Arena, Osaka, Japan
9Loss8–1Tina RupprechtMD105 Apr 2025MBS Arena, Potsdam, GermanyLost IBF female atomweight title;
For WBA female world champions#Light minimumweight|WBA], WBC, WBO, and List of [The Ring female world champions#Atomweight|The Ring female atomweight titles]
8Win8–0Mika IwakawaUD1012 Jan 2024Korakuen Hall, Tokyo, JapanWon IBF female world champions#Junior mini flyweight|IBF female atomweight title]
7Win7–0Pimchanok ThepjandaTKO3, 0:5915 Apr 2023EDION Arena, Osaka, JapanRetained WBO Asia Pacific female atomweight title
6Win6–0Honoka KanoTKO5, 1:561 Sep 2022Korakuen Hall, Tokyo, JapanWon vacant WBO Asia Pacific female atomweight title
5Win5–0Pichada Bunmee3, 1:3628 May 2022Singmanassak Muaythai School, Pathum Thani, Thailand
4Win4–0Natsuki Tarui426 Nov 2021EDION Arena, Osaka, Japan
3Win3–0Rin MuraiUD411 Aug 2021EDION Arena, Osaka, Japan
2Win2–0Natsuki Yamada44 Apr 2021Sangyo Shinko Center, Sakai, Japan
1Win1–0Arika Shimono413 Dec 2020EDION Arena, Osaka, Japan