Tomoya Tsuboi losses
Over 2 years as a professional, Tomoya Tsuboi has compiled a 3-1 (2) record, including two title fights across two weight classes. His only loss came in a title fight against Ricardo Malajika.
1. Tomoya Tsuboi loses to Ricardo Malajika via split decision
On September 27, 2026 Tomoya Tsuboi fought Ricardo Malajika for the vacant WBC super flyweight title. Tsuboi was 30 years old with a record of 3-0, and Malajika was 28 with a record of 17-2. Malajika was on a 9-fight winning streak. Tsuboi lost via split decision. Failed to win the vacant title. Went the distance with Malajika.