Flyweight · Japan

Masamichi Yabuki

20-5-0 18 KO · 2016–2026

Updated · Sources: Wikidata, Wikipedia (ja), English Wikipedia, +3

Masamichi Yabuki is a flyweight boxer from Japan, born Jul 9, 1992. Record 20-5-0 with 18 knockouts over 2016–2026. World titles: IBF flyweight (2025–present), IBF light flyweight (2024–2025), WBC light flyweight (2021–2022). Masamichi Yabuki last fought Rene Calixto Bibiano on Jun 6, 2026 and won by UD over 12 rounds.

Also: Масамічі Ябукі · 矢吹正道
BornJul 9, 1992
Country🇯🇵 Japan
StanceOrthodox
Reach164 cm
DebutMar 27, 2016
Career2016–2026
Rounds boxed129
KO share90%
Born inSuzuka, Mie, Japan
TitlesIBF, WBC light flyweight · 2021–2025; IBF flyweight · 2025–present
Boxerbook rating#2 in Flyweight · 2031 ± 117Why here ›
Confirmed bouts23 of 25 · 23 official

Record and next fight

Record
20-5-0, 18 KOs · 2016–2026
Next fight
No next fight confirmed

Last result

W
Rene Calixto Bibiano 🇲🇽
IBF title, 2nd defence
UD 12/12 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
2026-06-06 ›
official ★

The record

25 bouts, 2016–2026, newest first. Records under each bout are both boxers going in.

Bouts by source: Wikipedia (ja) · 25, English Wikipedia · 24, Japan Boxing Commission — 試合報告書 · 23, IBF/USBA Results · 5, Wikipedia (ru) · 1

W
Rene Calixto Bibiano 🇲🇽
IBF title, 2nd defence
UD 12/12 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
Yabuki 19-5-0 · Bibiano —
2026-06-06 ›
official ★
W
Felix Alvarado 🇳🇮
For IBF flyweight title
KO 12/12 · Aichi Prefecture International Exhibition Hall A, Hermosillo, 🇯🇵
Yabuki 18-5-0 · Alvarado 42-5-0
2025-12-27 ›
official ★
W
Angel Ayala 🇲🇽
Won IBF flyweight title
TKO 12/12 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
Yabuki 17-5-0 · Ayala 21-0-0
2025-03-29 ›
official ★
W
Sivenathi Nontshinga 🇿🇦
Won IBF light-flyweight title
TKO 9/12 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
Yabuki 16-5-0 · Nontshinga 13-1-0
2024-10-12 ›
official ★
W
Kevin Vivas
TKO 4/10 · Port Messe Nagoya, Nagoya, 🇯🇵
Yabuki 15-5-0 · Vivas —
2024-03-16 ›
official ★
W
Ronald Chacon
IBF Light flyweight
TKO 11/12 · Nagoya International Conference Hall, Nagoya, 🇯🇵
Yabuki 14-5-0 · Chacon —
2023-01-28 ›
official ★
W
Thanongsak Simsri 🇹🇭
TKO 7/10 · Yokkaichi City General Hall, Yokkaichi, 🇯🇵
Yabuki 13-5-0 · Simsri 25-0-0
2022-09-10 ›
official ★
L
Ken Shiro 🇯🇵
For WBC light-flyweight title
KO 3/12 · Kyoto City Gymnasium, Kyoto, 🇯🇵
Yabuki 13-4-0 · Shiro 18-1-0
2022-03-19 ›
official ★
W
Ken Shiro 🇯🇵
Won WBC light-flyweight title
TKO 10/12 · Kyoto City Gymnasium, Kyoto, 🇯🇵
Yabuki 12-4-0 · Shiro 18-0-0
2021-09-22 ›
official ★
W
Toshimasa Ouchi
Retained Japanese light-flyweight title
UD 10/10 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 11-4-0 · Ouchi —
2020-12-26 ›
official ★
W
Tsuyoshi Sato
Won vacant Japanese light-flyweight title
KO 1/10 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 10-4-0 · Sato —
2020-07-26 ›
official ★
W
Rikito Shiba 🇯🇵
Japanese light flyweight title eliminator
TKO 4/8 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 9-4-0 · Shiba 4-0-0
2019-12-15 ›
official ★
W
Ryūto Ōbo 🇯🇵
TKO 6/8 · Korakuen Hall, Tokyo, 🇯🇵
Yabuki 8-4-0 · Ōbo 12-4-1
2019-05-01 ›
official ★
W
Bae Min-Chul
TKO 5/8 · Wolbae Sports Center, Daegu, 🇰🇷
Yabuki 7-4-0 · Min-Chul —
2019-01-27 ›
✓ one source
L
Daniel Matellon 🇨🇺
SD 8/8 · Korakuen Hall, Tokyo, 🇯🇵
Yabuki 7-3-0 · Matellon 7-0-2
2018-09-29 ›
official ★
W
Gilberto Pedroza
KO 2/8 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 6-3-0 · Pedroza —
2018-06-17 ›
official ★
L
Seigo Yuri Akui 🇯🇵
TKO 1/8 · Suntopia Okayama Soja, Sōja, 🇯🇵
Yabuki 6-2-0 · Akui 12-1-1
2018-04-08 ›
official ★
L
Seigo Yuri Akui 🇯🇵
TKO 1
Yabuki 6-1-0 · Akui 11-1-1
2018-04-06 ›
✓ one source
W
Masashi Tada
TKO 1/6 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 5-1-0 · Tada —
2017-11-26 ›
official ★
W
Masaki Hirai
TKO 2/6 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 4-1-0 · Hirai —
2017-07-16 ›
official ★
Show all 25 bouts
W
Kim Kwang-Min
TKO 1/4 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 3-1-0 · Kwang-Min —
2017-03-26 ›
official ★
L
Junto Nakatani 🇯🇵
UD 4/4 · Korakuen Hall, Tokyo, 🇯🇵
Yabuki 3-0-0 · Nakatani 8-0-0
2016-12-23 ›
official ★
W
Ryōsuke Nasu 🇯🇵
KO 1/4 · EDION Arena, Osaka, 🇯🇵
Yabuki 2-0-0 · Nasu —
2016-11-06 ›
official ★
W
Kiyoshi Nakamura
TKO 1/4 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 1-0-0 · Nakamura —
2016-08-07 ›
official ★
W
Shohei Horii
TKO 1/4 · Kariya City Aioi Hall, Kariya, 🇯🇵
Yabuki 0-0-0 · Horii —
2016-03-27 ›
official ★

Ratings now

C
IBF · Flyweight
as of 2026-10-06
2
Ring · Flyweight
as of 2026-08-31
2
TBRB · Flyweight
as of 2026-10-11

World titles

IBFFlyweight
2025-03-29 – present
IBFLight flyweight
2024-10-12 – 2025-04-10
WBCLight flyweight
2021-09-22 – 2022-03-19

Facts

What is Masamichi Yabuki's record?
Masamichi Yabuki's professional record is 20-5-0 with 18 knockouts.
When is Masamichi Yabuki's next fight?
No next fight is confirmed as of 18 Oct 2026.
Who did Masamichi Yabuki fight last?
Masamichi Yabuki last fought Rene Calixto Bibiano on Jun 6, 2026 and won by UD over 12 rounds.
Which world titles has Masamichi Yabuki held?
Masamichi Yabuki has held 3 world title reigns: IBF flyweight (2025–present), IBF light flyweight (2024–2025), WBC light flyweight (2021–2022).

Sources

Boxerbook ID 18530 · permanent link boxerbook.com/id/18530. Wikidata (CC0), English Wikipedia (CC BY-SA), publisher rankings. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.

Wikipedia ↗Wikidata ↗X ↗