Here is a list of Ioka's best fights. For a list of Ioka's losses, refer to "Kazuto Ioka Losses".
On April 22, 2015 Kazuto Ioka fought Juan Carlos Reveco in a flyweight world-title fight for Reveco's WBA (Regular) title. Ioka was 26 years old and with a record of 17-1 (10), and Reveco was 31 years old and with a record of 35-1 (19). Ioka won the fight via 12-round majority decision and is crowned the new flyweight world champion.
On July 13, 2022 Kazuto Ioka met Donnie Nietes in a super-flyweight (WBO) world-title defense fight. Ioka was 33 years old and with a record of 29-2 (15), and Nietes was 40 years old and with a record of 43-1-6 (23). Ioka won the fight via 12-round unanimous decision and successfully defended his title.
On September 1, 2021 Kazuto Ioka met Francisco Rodríguez Jr. in a super-flyweight (WBO) world-title defense fight. Ioka was 32 years old and with a record of 27-2 (15), and Rodríguez Jr. was 28 years old and with a record of 34-4-1 (24). Ioka won the fight via 12-round unanimous decision and successfully defended his title.
On December 31, 2013 Kazuto Ioka met Felix Alvarado in a light-flyweight (WBA (Regular)) world-title defense fight. Ioka was 24 years old and with a record of 14-0 (9), and Alvarado was 24 years old and with a record of 18-0 (15). Ioka won the fight via 12-round unanimous decision and successfully defended his title.
On June 20, 2012 Kazuto Ioka, the WBC champion, met Akira Yaegashi, the WBA champion, in a strawweight world-title unification fight. Ioka was 23 years old and with a record of 10-0 (6), and Yaegashi was 29 years old and with a record of 15-2 (8). Ioka won the fight via 12-round unanimous decision and and is crowned the unified WBC and WBA champion.
On June 24, 2023 Kazuto Ioka fought Joshua Franco in a super-flyweight world-title fight for the WBA title. Ioka was 34 years old and with a record of 30-2-1 (15), and Franco was 27 years old and with a record of 18-1-3 (8). Ioka won the fight via 12-round unanimous decision and is crowned the new super-flyweight world champion.
On December 31, 2015 Kazuto Ioka met Juan Carlos Reveco in a flyweight (WBA (Regular)) world-title defense fight. Ioka was 26 years old and with a record of 19-1 (11), and Reveco was 32 years old and with a record of 36-2 (19). Ioka stopped Juan Carlos Reveco via 11th-round TKO and successfully defended his title.
On September 8, 2018 Kazuto Ioka faced off against McWilliams Arroyo in a super-flyweight bout at age 29. He was coming in with a record of 23-1 (13), and Arroyo was 32 years old and with a record of 17-3 (14). Ioka won the fight via 10-round unanimous decision.
On June 19, 2019 Kazuto Ioka fought Aston Palicte in a super-flyweight world-title fight for the WBO title. Ioka was 30 years old and with a record of 24-2 (14), and Palicte was 28 years old and with a record of 25-2-1 (21). Ioka stopped Aston Palicte via 10th-round TKO and is crowned the new super-flyweight world champion.
On September 11, 2013 Kazuto Ioka met Kwanthai Sithmorseng in a light-flyweight (WBA (Regular)) world-title defense fight. Ioka was 24 years old and with a record of 13-0 (9), and Sithmorseng was 28 years old and with a record of 41-1-1 (21). Ioka stopped Kwanthai Sithmorseng via 7th-round KO and successfully defended his title.
