Here is a list of Nishida's best fights. For a list of Nishida's losses, refer to "Ryosuke Nishida Losses".
On April 24, 2021 Ryosuke Nishida faced off against Daigo Higa in a bantamweight bout at age 24. He was coming in with a record of 4-0 (1), and Higa was 25 years old and with a record of 17-1-1 (17). Nishida won the fight via 12-round unanimous decision.
On May 4, 2024 Ryosuke Nishida fought Emmanuel Rodríguez in a bantamweight world-title fight for Rodríguez' IBF title. Nishida was 27 years old and with a record of 9-0 (1), and Rodríguez was 31 years old and with a record of 22-2 (13). Nishida won the fight via 12-round unanimous decision and is crowned the new bantamweight world champion.