is a Japanese racing driver set to compete in the GT300 class of Super GT for Pacific Racing Team.
Kubo made his single-seater debut in 2013, racing in the Super FJ Motegi Series, which he won after scoring three wins. During 2013, Kubo also made one-off appearances in the Super FJ Suzuka and Fuji Series, as well as Formula Challenge Japan for Le Beausset Racing Academy.
The following year, Kubo remained with Le Beausset Motorsports to step up to the Japanese Formula 3 Championship. Racing in the National class in his only season in the series, Kubo took five class wins en route to runner-up honors in the standings, 27 points behind Hiroshi Koizumi. Switching to sportscars for 2015, Kubo joined Team KTouch to race in Porsche Carrera Cup Japan, in which he scored a lone win at Suzuka, as well as eight other podiums to end the year third in points.
In 2016, Kubo made his debut in Super GT, as he joined Arnage Racing to compete in the GT300 class alongside Hideto Yasuoka. After scoring a best result of 12th at Fuji, Kubo returned to the series for the following year, as he switched to apr alongside Koki Saga. In his only season with the team, Kubo scored points at Okayama and Sugo, before taking his only podium of the year at Fuji en route to a 16th-place points finish. Continuing in Super GT for 2018, Kubo joined Pacific with Gulf Racing for his third season in the series, in which he scored a best result of sixth at Autopolis to end the year 17th in points.
Switching to Super Taikyu for 2019, Kubo joined C.S.I Racing to race in the ST-4 class alongside Shinya Hosokawa. In his first season in the series, Kubo scored a class win at Suzuka and two other podiums to help the team end the year third in points. Returning to Super GT for 2020, Kubo joined Tsuchiya Engineering-ran Max Racing alongside Atsushi Miyake, with whom he scored a best result of 13th at Fuji. In parallel, Kubo returned to Super Taikyu and C.S.I Racing, taking three class wins and one other podium to secure the ST-4 title at season's end. Kubo also raced in the Toyota Gazoo Racing GR86/BRZ Cup, in which he became the first driver in series history to win the title driving a Subaru BRZ.
Remaining with the team to continue in Super Taikyu the following year, Kubo mainly raced in the ST-Z class, scoring a lone win at Okayama as he helped the team end the year fifth in points. Kubo then primarily raced in the Toyota Gazoo Racing GR86/BRZ Cup the following year as he continued his affiliation with Subaru, as well as racing part-time in Super Taikyu for Tracy Sports, winning at Okayama and Suzuka in ST-3. Remaining in the former for 2023 with team Team Takuty, Kubo scored a lone win at Motegi and rounded out the season sixth in points. During 2023, Kubo also raced part-time in the Nürburgring Langstrecken-Serie for Team HAL.
Continuing in the Toyota Gazoo Racing GR86/BRZ Cup for Team Takuty in 2024, Kubo also raced with Subaru Tecnica International in select rounds of the Nürburgring Langstrecken-Serie, as well as the 24 Hours of Nürburgring. In parallel, Kubo raced with Porsche Team Ebi to race in the ST-Z class of Super Taikyu, taking a lone win at Suzuka and helping the team secure third in the ST-Z standings. The following year, Kubo remained with Team Takuty to once again race in the Toyota Gazoo Racing GR86/BRZ Cup, as well as continuing his part-time program with Subaru in the NLS and the 24 Hours of Nürburgring. Alongside that, Kubo remained with Porsche Team Ebi to continue racing in Super Taikyu in the ST-Z class. Kubo scored his first podium by finishing third at Suzuka, before following it up with a third-place finish at the Fuji 24 Hours and a second-place finish at the season-ending race at Fuji to end the year fifth in class.
For 2026, Kubo remained in the Toyota Gazoo Racing GR86/BRZ Cup with Team Takuty, as well as racing in the ST-Z class of Super Taikyu for Kokusai Group Sports Team. In addition, Kubo also remained with Subaru Tecnica International to race in the 24 Hours of Nürburgring, as well as select races in the GT300 class of Super GT for Pacific Racing Team.
<sup>â </sup> As Kubo was a guest driver, he was ineligible for championship points.
<sup>â¡</sup> Team standings.
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)