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Kazuto Ioka

Kazuto Ioka

Boxing record: 32-5-1 (17)
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Sakai, Japan

Kazuto Ioka losses

Over 17 years as a professional, Kazuto Ioka has compiled a 32-5-1 (17) record, including 29 title fights across five weight classes. He has five losses against four different opponents, four of them in title fights.

  1. 5. Kazuto Ioka loses to Takuma Inoue via unanimous decision

    On May 2, 2026 Kazuto Ioka fought Takuma Inoue for the WBC bantamweight title. Ioka was 37 years old with a record of 32-4-1, and Inoue was 30 with a record of 21-2. Both Ioka and Inoue were coming off a win. Ioka lost via unanimous decision. Failed to capture the title. Went the distance with Inoue.

  2. 4. Kazuto Ioka loses to Fernando MartĂ­nez in their 2nd fight via unanimous decision

    On May 11, 2025 Kazuto Ioka faced Fernando MartĂ­nez in a super flyweight bout. It was their second meeting. Ioka was 36 years old with a record of 31-3-1, and MartĂ­nez was 33 with a record of 17-0. Ioka was coming off a loss, while MartĂ­nez was on an undefeated 17-fight winning streak. Ioka lost via unanimous decision. Went the distance with MartĂ­nez.

  3. 3. Kazuto Ioka loses to Fernando MartĂ­nez via unanimous decision

    On July 7, 2024 Kazuto Ioka, the WBA super flyweight champion, met Fernando MartĂ­nez, the IBF super flyweight champion, in a title unification fight. Ioka was 35 years old with a record of 31-2-1, and MartĂ­nez was 32 with a record of 16-0. Ioka was on a 2-fight winning streak and MartĂ­nez was on an undefeated 16-fight winning streak. Ioka lost via unanimous decision. Lost the title in unification. Went the distance with MartĂ­nez.

  4. 2. Kazuto Ioka loses to Donnie Nietes via split decision

    On December 31, 2018 Kazuto Ioka fought Donnie Nietes for the vacant WBO super flyweight title. Ioka was 29 years old with a record of 23-1, and Nietes was 36 with a record of 41-1-5. Ioka was on a 9-fight winning streak. Ioka lost via split decision. Failed to win the vacant title. Went the distance with Nietes.

  5. 1. Kazuto Ioka loses to Amnat Ruenroeng via split decision

    On May 7, 2014 Kazuto Ioka fought Amnat Ruenroeng for the IBF flyweight title. Ioka was 25 years old with a record of 14-0, and Ruenroeng was 34 with a record of 12-0. Ioka was on an undefeated 14-fight winning streak and Ruenroeng was on an undefeated 12-fight winning streak. Ioka lost via split decision. Failed to capture the title. Went the distance with Ruenroeng.