is a Japanese professional boxer. As an amateur, Tsuboi won a gold medal at the 2021 AIBA World Boxing Championships. Tsuboi also won bronze medals at both the 2022 Asian Games and 2022 Asian Amateur Boxing Championships.
Belgrade 2021
Tashkent 2023
Hangzhou 2021
Amman 2022
On 13 March 2025, Tsuboi made his professional debut in a bout against Boonrueang Phayom. In the second round, Tsuboi scored a knockdown after landing a shot to the body of his opponent. Phayom was able to recover from the knockdown, but was dropped for a second time later in the round which resulted in the referee opting to call an end to the bout. On 8 June 2025, Tsuboi faced Trần VÃÂn Thảo for the vacant WBO Asia Pacific bantamweight title. Tsuboi was able to secure the win after outboxing his opponent for the majority of the bout.
|-