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Japan

This page brings together champions and ranked contenders from Japan across the WBA, WBC, IBF, WBO and RING. Use it as a snapshot of how fighters from this nation appear in the latest official world rankings.

Last Updated: July 2026

Champions

World champions representing Japan

Naoya Inoue

IBFSuper Bantamweight
🏆Champion
RINGSuper Bantamweight
🏆Champion
WBASuper Bantamweight
🏆Super Champion
WBCSuper Bantamweight
🏆Champion
WBOSuper Bantamweight
🏆Super Champion

Takuma Inoue

WBCBantamweight
🏆Champion

Masamichi Yabuki

IBFFlyweight
🏆Champion

Shokichi Iwata

WBCLight Flyweight
🏆Champion

Callum Smith

WBOLight Heavyweight
🏆Interim Champion

Top 10 Contenders

Top 10 ranked boxers from Japan

RankFighterOrganizationWeight Class
#1, #1, #4, #6Riku MasudaWBAWBOIBFRINGBantamweight
#1, #1, #3, #5, #5Tomoya TsuboiWBCWBOWBARINGIBFSuper Flyweight
#1, #3, #6Ryosuke NishidaIBFWBCRINGSuper Bantamweight
#1, #2, #3, #4, #5Junto NakataniWBCWBORINGIBFWBASuper Bantamweight
#1Seiya TsutsumiRINGBantamweight
#1, #2, #3, #8, #9Tenshin NasukawaWBCWBOIBFWBARINGBantamweight
#1, #4, #4, #5, #6Kyosuke TakamiWBAIBFRINGWBCWBOFlyweight, Light Flyweight
#1, #8Daiya KiraWBAWBOLight Flyweight
#1, #2, #3, #4Ryusei MatsumotoWBAWBCIBFRINGMinimumweight
#2Ryota MutoWBOFeatherweight
#2, #3, #5, #5Mikito NakanoWBAWBOIBFWBCFeatherweight
#2, #5Daigo HigaWBARINGBantamweight
#2, #3, #5Ryusei KawauraWBOIBFWBASuper Flyweight
#2, #5, #5, #7Seigo Yuri AkuiWBAWBCWBOIBFSuper Flyweight, Flyweight
#2, #5, #6, #7Takeshi IshiiWBAIBFRINGWBOMinimumweight
#3Kenichi OgawaWBOSuper Featherweight
#3Tomoki KamedaWBAFeatherweight
#3, #6, #6Yoshiki TakeiWBOIBFWBABantamweight, Super Bantamweight
#3, #10Kenshiro TerajiWBOIBFSuper Flyweight
#4, #4, #5Kosuke TomiokaWBAWBOIBFFlyweight
#4, #8, #10Andy HiraokaWBAIBFWBCSuper Lightweight
#4, #8, #10Hayato TsutsumiWBAIBFRINGSuper Featherweight
#4, #5, #6, #6Toshiki ShimomachiIBFWBOWBAWBCFeatherweight, Super Bantamweight
#4, #10Kenta NakagawaIBFWBOSuper Flyweight
#5, #7, #8, #9Shu UtsukiWBOWBAWBCIBFLightweight
#5, #6Masanori RikiishiWBAIBFSuper Featherweight
#6, #10Yukinori OguniWBORINGSuper Bantamweight
#6, #10, #10Masataka TaniguchiWBORINGWBCLight Flyweight
#6, #8Katsuki MoriWBAIBFMinimumweight
#7Yamato HataWBCSuper Featherweight
#7Kyonosuke KamedaWBAFeatherweight
#7Kazuki NakajimaWBCSuper Bantamweight
#7Ayumu SanoWBASuper Flyweight
#7Yuni TakadaWBAMinimumweight
#8, #8Yuga OzakiIBFWBCLight Flyweight
#8Ryuto OwanWBOFeatherweight
#8Atsuki SanoWBOFlyweight
#8Ryoma MorimotoIBFFlyweight
#9, #10Kazuto IokaWBCWBABantamweight
#10Shumpei OhataWBOSuper Featherweight
#10Katsuma AkitsugiWBOBantamweight

Total Ranked

96 boxers from Japan are currently ranked as champions or contenders in the latest WBA, WBC, IBF, WBO and RING world rankings. This list shows 50 additional fighters beyond the champions and Top 10 contenders highlighted above.