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Kosei Tanaka Record

Total Fights21
Title Wins4
Title Defenses6
Title-Fight KOs5
KO Wins11
KO Losses1
Kosei Tanaka Record & Stats
Kosei Tanaka's Record
Kosei Tanaka's boxing record and career infographic

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      What is Kosei Tanaka's boxing record?

      10 years and three months into his professional boxing career, Kosei Tanaka has fought 21 times with 20 wins and a single loss.

      Tanaka's boxing record is currently 20-1, which includes four world-title wins and six successful title defense fights at three weight classes — strawweight, light-flyweight, and flyweight. He has a 52.4% knockouts-to-fights ratio with 11 of his total 21 fights being knockout wins, five of which were in title fights. The only loss in Tanaka's career is a 8th round TKO loss to Kazuto Ioka in a super-flyweight title fight.

      His latest fight was a 12-round unanimous decision victory over Christian Bacasegua Rangel on February 24, 2024. Tanaka won the super-flyweight WBO (vacant) title with this win.

      Some of Tanaka's best fights and notable victories include wins over Wulan Tuolehazi, Vic Saludar, Jonathan González, Palangpol CP Freshmart, Sho Kimura, Rene Patilano, and Ryoichi Taguchi.

      21Feb 24, 202428Christian Bacasegua RangelWin *UD
      20May 21, 202327Pablo CarrilloWinTKO10
      19Dec 11, 202227Yanga SigqiboWinUD
      18Jun 29, 202227Masayoshi HashizumeWinTKO5
      17Dec 11, 202126Sho IshidaWinSD
      16Dec 31, 202025Kazuto IokaLoss *TKO8
      15Dec 31, 201924Wulan TuolehaziWin *KO3
      14Aug 24, 201924Jonathan GonzálezWin *TKO7
      13Mar 16, 201923Ryoichi TaguchiWin *UD
      12Sep 24, 201823Sho KimuraWin *MD
      11Mar 31, 201822Ronnie BaldonadoWinTKO9
      10Sep 13, 201722Palangpol CP FreshmartWin *TKO9
      9May 20, 201721Ángel AcostaWin *UD
      8Dec 31, 201621Moisés FuentesWin *TKO5
      7May 28, 201620Rene PatilanoWinKO6
      6Dec 31, 201520Vic SaludarWin *KO6
      5May 30, 201519Julian YedrasWin *UD
      4Oct 30, 201419Ryuji HaraWinTKO10
      3Jul 20, 201419Crison OmayaoWinKO1
      2Mar 16, 201418Ronelle FerrerasWinUD
      1Nov 10, 201318Oscar RaknafaWinUD

      * World-title fight

      Boxing career

      Kosei Tanaka (Chukyo no Kaibutsu) is a 29-year old Japanese professional boxer. He was born in Tajimi, Gifu, Japan on June 15, 1995. He is a four-weight-class world champion and the current WBO super-flyweight world champion.

      Tanaka made his professional boxing debut against Oscar Raknafa at the age of 18 on November 10, 2013, defeating Raknafa via 6 round unanimous decision. He went on to win 14 more consecutive fights after the debut, which included 9 wins via stoppage.

      He had his first world title fight at the age of 19 on May 30, 2015 after 4 professional fights, against Julian Yedras for the strawweight WBO (vacant) title. He defeated Yedras via 12 round unanimous decision to become the strawweight champion of the world.

      Tanaka has won four world titles at four weight classes. For all the details about Tanaka's world title wins and defenses refer to the "Championships" section below.

      Tanaka has had just a single loss in his professional boxing career so far.

      His most recent fight was a super-flyweight bout against Christian Bacasegua Rangel on February 24, 2024. Tanaka won the fight via 12 round unanimous decision. It's been 5 months and 1 day since this fight.


      Tanaka has had a total of 11 world-title fights till today, which includes winning four world titles and six successful title defenses. He won 10 of these fights and lost one.

      Title Wins

      Kosei Tanaka has fought for world titles in five fights and won four of these fights, winning one of them via way of stoppage. Till today, he has won four belts across four weight classes.

      DateOpponentDivisionTitles WonMethod
      Feb 24, 2024Christian Bacasegua RangelSuper-flyweightWBO*UD
      Sep 24, 2018Sho KimuraFlyweightWBOMD
      Dec 31, 2016Moisés FuentesLight-flyweightWBO*TKO
      May 30, 2015Julian YedrasStrawweightWBO*UD
      * Vacant title

      Title Defenses

      Kosei Tanaka has had six world-title defense fights across three weight classes — strawweight, light-flyweight (x2), and flyweight (x3). He won all of these fights.

      DateOpponentDivisionTitles DefendedMethod
      Dec 31, 2019Wulan TuolehaziFlyweightWBOKO
      Aug 24, 2019Jonathan GonzálezFlyweightWBOTKO
      Mar 16, 2019Ryoichi TaguchiFlyweightWBOUD
      Sep 13, 2017Palangpol CP FreshmartLight-flyweightWBOTKO
      May 20, 2017Ángel AcostaLight-flyweightWBOUD
      Dec 31, 2015Vic SaludarStrawweightWBOKO


      Tanaka has fought a total of 21 times till today, which includes 11 world-title fights at four weight divisions. These five fights are the highlight of his career.

      • May 30, 2015: Tanaka wins his first world title by defeating Julian Yedras via 12 round unanimous decision. He is now the WBO strawweight world champion.

      • May 20, 2017: Tanaka successfully defends the WBO light-flyweight title against Ángel Acosta, winning the fight via 12 round unanimous decision.

      • March 16, 2019: Tanaka successfully defends the WBO flyweight title against Ryoichi Taguchi, winning the fight via 12 round unanimous decision.

      • August 24, 2019: Tanaka successfully defends the WBO flyweight title against Jonathan González, winning the fight via 7th round TKO.

      • December 31, 2019: Tanaka successfully defends the WBO flyweight title against Wulan Tuolehazi, winning the fight via 3rd round KO.


      Ape Index
      Win Streak
      Career Score