is a Japanese racing driver competing in Kyojo Cup for SCS Team TOM'S.
Personal life Saito is the wife of 2024 Super Formula champion Sho Tsuboi.
Career Saito began karting in 1999, competing until 2021. During her karting career, Saito most notably won the 2017 Toyopet SL Kart Meeting in the Ladies class, as well as finishing runner-up in the 2019 APG Winter Cup and third in the 2018 RMC APG Series, both in Senior Max. In 2020, Saito made her car racing debut, competing for the majority of the Kyojo Cup calendar as a privateer, taking a best result of fourth on debut and ended the season tenth in points.
Joining RaiseUPmotorsport for the 2021 season, Saito scored her maiden podiums at Suzuka and the second Fuji race en route to a fifth-place points finish. Saito then returned as a privateer in 2022, began the year with a third-place finish at the second Fuji race, before ending the year with a second-place finish at the finale to clinch third in overall points. Joining Ai Miura's Team M for her fourth season in the series, Saito finished no lower than fourth across the four-race season to take third in points, with a best result of third in the season finale.
Remaining with Team M for 2024, Saito finished second to Miki Onaga in the season-opener, before taking her maiden series wins in the Super Formula-supported round two to take the points lead. Following that, Saito took two wins in the final three races to secure her first Kyojo Cup title. In 2025, Saito joined series newcomers TOM'S for the series' first season of the Kyojo Formula era. After finishing no higher than seventh in the season-opening round, Saito took her only win of the season in round two's sprint race, and four other podiums to end the year third overall. During 2025, Saito also competed for Rn-sports in the F110 Cup, as well as winning the Fuji 24 Hours in ST-Q for TOYOTA GAZOO ROOKIE Racing.
At the start of 2026, Saito raced at the Dubai 24 Hour for Rookie Racing in the TCX class alongside Onaga, Rio Shimono, Kokoro Sato and Rami Sasaki. For the rest of the year, Saito returned to TOM'S for her seventh campaign in Kyojo Cup.
Karting record Karting career summary Season Series Team Position 2001Nakai Inter Circuit Kids Kart Festa – Normal 302002APG Challenge Cup – TRYOi Matsuda Kart Series – TRY2003APG Challenge Cup – TRYOi Matsuda Kart Series – TRY2004East Japan Junior Championship – JIIOi Matsuda Kart Series – JIISL National Championship – Cadet5th2005Oi Matsuda Kart Series – TIA-JrSL National Championship – TIA-Jr2006All-Japan Karting Championship – JuniorOi Matsuda Kart Series – Yamaha-JrShin Tokyo Circuit NTCCUP – SSL National Championship – Yamaha-Jr 2007New Tokyo Circuit NTCCUP – FA-B2010New Tokyo Circuit NTCCUP – SSAPG Challenge Cup – SS 2011New Tokyo Circuit NTCCUP – SS 2012New Tokyo Circuit NTCCUP – SS 2013New Tokyo Circuit NTCCUP – SS 2014New Tokyo Circuit NTCCUP – SS2016New Tokyo Circuit NTCCUP – SSMotegi Kart Race – SS2017APG Winter Cup – Senior Max4thToyopet SL Kart Meeting – LadiesSuper License1st2018RMC APG Series – Senior Max3rdJAF Regional Kart Championship – FS-125RMC Japan Festival – Senior MaxZi-ViVre RT7th2019APG Winter Cup – Senior MaxZi-ViVre RT2ndRMC APG Series – Senior MaxRMC Mizunami Series – Senior MaxZi-ViVre RT12th2020All-Japan Junior Karting Championship – FS-125Zi-ViVre RT34thJunior Kart West Region Championship – FS-12516th 2021All-Japan Karting Championship – OKRosa Drago Corse30thSources:
Racing record Racing career summary SeasonSeriesTeamRacesWinsPolesF/LapsPodiumsPointsPosition 2020 Kyojo Cup Aimi Saito 3 0 0 0 0 10 10th 2021 Kyojo Cup RaiseUPmotorsport 4 0 0 0 2 27 5th 2022 Kyojo Cup Aimi Saito 4 0 0 0 2 563rd 2023 Kyojo Cup Team M 4 0 0 0 1 463rd 2024 Kyojo Cup Team M 6 4 3 2 5 115.51st2025 F110 Cup Rn-sports 6 0 0 0 0 9 16th Kyojo Cup BigBoss W Team TOM'S 10 1 2 2 5 743rd Super Taikyu – ST-Q TOYOTA GAZOO ROOKIE Racing 1 1 0 0 1 0‡ NC‡ 2025–2624H Series Middle East – TCXToyota Gazoo Rookie Racing 1 0 0 0 1 54 NC 2026 Kyojo Cup SCS Team TOM'S 2 0 0 1 1 16*3rd*Sources:
Complete Kyojo Cup results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Year Entrant 1 2 3 4 5 6 7 8 9 10 Pos Points 2020 Privateer FUJ1 SUZ FUJ2 FUJ3 10th 10 2021 RaiseUPmotorsport FUJ1 SUZ FUJ2 FUJ3 5th 27 2022 Privateer FUJ1 FUJ2 FUJ3 FUJ43rd56 2023 Team M FUJ1 FUJ2 FUJ3 FUJ43rd46 2024 Team M FUJ1 FUJ21 FUJ22 FUJ3 FUJ4 NC1 NC2 FUJ51st115.5 2025 BigBoss W Team TOM'S FUJ1SPR FUJ1FIN FUJ2SPR FUJ2FIN FUJ3SPR FUJ3FIN FUJ4SPR FUJ4FIN FUJ5SPR FUJ5FIN3rd74 2026 SCS Team TOM'S FUJ1SPR FUJ1FIN FUJ2SPR FUJ2FIN FUJ3SPR FUJ3FIN FUJ4SPR FUJ4FIN FUJ5SPR FUJ5FIN3rd*16*
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