Ryota Yamauchi has two losses against two opponents on his boxing record. For a list of Yamauchi's best fights, refer to "Best fights of Ryota Yamauchi".
On April 9, 2022 Ryota Yamauchi fought Junto Nakatani in a flyweight world-title fight for Nakatani's WBO title. Yamauchi was 27 years old and with a record of 8-2 (7), and Nakatani was 24 years old and with a record of 22-0 (17). Yamauchi lost the fight via 8th-round TKO.
On March 30, 2019 Ryota Yamauchi faced off against Wulan Tuolehazi in a flyweight bout at age 24. He was coming in with a record of 4-1 (4). Yamauchi lost the fight via 12-round unanimous decision.
