is a Japanese former motorcycle racer.
Masaki won the 2017 Red Bull MotoGP Rookies Cup and made his Moto3 World Championship debut as a wildcard during the 2017 Valencia GP, where he finished 10th.
Masaki joined Moto3 as a full-time rider in switching from Honda's Asia Talent Team to KTM's RBA BOE.
After two unsuccessful seasons in Moto3, Masaki stepped down to FIM CEV Moto3 Junior World Championship in 2020.
() (Races in bold indicate pole position; races in italics indicate fastest lap)
() (Races in bold indicate pole position, races in italics indicate fastest lap)
() (Races in bold indicate pole position, races in italics indicate fastest lap)
() (Races in bold indicate pole position, races in italics indicate fastest lap)