Shokichi Iwata has two losses against two opponents on his boxing record. For a list of Iwata's best fights, refer to "Best fights of Shokichi Iwata".
On March 13, 2025 Shokichi Iwata met René Santiago in a light-flyweight (WBO) world-title defense fight. Iwata was 29 years old and with a record of 14-2 (11), and Santiago was 32 years old and with a record of 13-4 (9). Iwata lost the fight via 12-round unanimous decision and lost the title.
On November 1, 2022 Shokichi Iwata fought Jonathan González in a light-flyweight world-title fight for González' WBO title. Iwata was 26 years old and with a record of 9-1 (6), and González was 31 years old and with a record of 26-3-1 (14). Iwata lost the fight via 12-round unanimous decision.