Here is a list of Tsutsumi's best fights.
On October 13, 2024 Seiya Tsutsumi fought Takuma Inoue in a bantamweight world-title fight for Inoue's WBA title. Tsutsumi was 28 years old and with a record of 12-0-2 (8), and Inoue was 28 years old and with a record of 20-1 (5). Tsutsumi won the fight via 12-round unanimous decision and is crowned the new bantamweight world champion.