# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/kosei-tanaka
# Generated: 2026-08-14T12:30:22.608Z

schema: https://schema.org/Person
url: "https://fame.am/person/kosei-tanaka"
name: "Kosei Tanaka"
slug: "kosei-tanaka"
description: "Kosei Tanaka  is a Japanese former professional boxer who competed from 2013 to 2024. He is a four-weight world champion, having held the World Boxing Organization (WBO) mini-flyweight title from 2015 to 2016; the WBO junior-flyweight title from 2016 to 2017; the WBO flyweight title from 2018 to 2020; and the WBO junior-bantamweight title in 2024. Upon winning his first world title in only his fifth bout, he became the fastest Japanese fighter ever to become a world champion. Along with Vasiliy Lomachenko, he is also the fastest ever male fighter to win titles in three weight-classes, having accomplished the feat in only 12 bouts. He also surpassed Oscar De La Hoya to become the fastest male four division champion, setting the bar at 21 fights."
tagline: "Japanese boxer"
gender: "male"
country:
  name: "Japan"
  isoCode: "JP"
category:
  name: "Athletes"
  slug: "athletes"
profileType:
  name: "Athlete"
  slug: "athlete"
  entityType: "https://www.wikidata.org/entity/Q2066131"
birthDate: "1995-06-15"
livingStatus: "LIVING"
scores:
  popularity:           49.08
  momentum:             0
  historical:           8.246774666666667
  currentAttention:     0
  sourceConfidence:     60.00000000000001
  profileCompleteness:  65
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
platforms:
  - platform:  "X"
    url:       "https://x.com/615Kousei"
    handle:    "615Kousei"
  - platform:  "INSTAGRAM"
    url:       "https://www.instagram.com/koseitanaka_5/"
    handle:    "koseitanaka_5"
sources:
  - url: "https://uk.wikipedia.org/wiki/%D0%9A%D0%BE%D1%81%D0%B5%D0%B9_%D0%A2%D0%B0%D0%BD%D0%B0%D0%BA%D0%B0"
    title: "Косей Танака"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/K%C5%8Dsei_Tanaka"
    title: "Kōsei Tanaka"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Kosei_Tanaka"
    title: "Kosei Tanaka"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/K%C5%8Dsei_Tanaka"
    title: "Kōsei Tanaka"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/K%C5%8Dsei_Tanaka"
    title: "Kōsei Tanaka"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E7%94%B0%E4%B8%AD%E6%81%92%E6%88%90"
    title: "田中恒成"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/K%C5%8Dsei_Tanaka"
    title: "Kōsei Tanaka"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%A2%D0%B0%D0%BD%D0%B0%D0%BA%D0%B0%2C_%D0%9A%D0%BE%D1%81%D1%8D%D0%B9"
    title: "Танака, Косэй"
    type:  "WIKIPEDIA"
  - url: "https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%84%E0%B9%80%E0%B8%8B_%E0%B8%97%E0%B8%B2%E0%B8%99%E0%B8%B2%E0%B8%81%E0%B8%B0"
    title: "โคเซ ทานากะ"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q18638075"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump