Riku Masuda has one loss against one opponent on his boxing record. For a list of Masuda's best fights, refer to "Best fights of Riku Masuda".
On August 30, 2023 Riku Masuda faced off against Seiya Tsutsumi at age 25. He was coming in with a record of 3-1 (3), and Tsutsumi was 27 years old and with a record of 8-0-2 (7). Masuda lost the fight via 10-round unanimous decision.
