Seita Nonaka

is a Japanese racing driver set to compete in Super GT for Saitama Green Brave, and in Super Formula for team KCMG. He previously raced in Super Formula Lights, and was most notably the 2021 Japanese F4 champion. Nonaka is part of the TGR Driver Challenge program.

Career F4 Japan Nonaka started racing in 2019, competing in F4 Japanese Championship with TOM'S Spirit and managed to claim eighth in his rookie season. He stayed in the same series, but joined TGR-DC Racing School. In that season, he claimed third place in the final standings. Nonaka once again continued to compete in the same series for the third season for 2021 with the same team from 2020. That season, he clinched the title from Rin Arakawa & Iori Kimura in the last round at Fuji Speedway.

Super Formula Lights In the same year of 2021, Nonaka competed in Super Formula Lights, where he replaced Kazuto Kotaka who originally should compete in the series, but have to race in Super Formula with KCMG covered Kamui Kobayashi, who was not able to compete in Japan due to travel restrictions. Nonaka competed all but one of the six rounds held that year.

For the next two seasons, Nonaka continued racing Super Formula Lights with the same team, claiming a win and nine podiums. He finished the year in fourth place in 2022, and finished seventh with four podiums in 2023. He continued the series for the third season with TOM'S again. Nonaka stayed for his fourth season in 2024, once again with TOM'S.

Super Formula Championship For 2026, Nonaka was due to stay in Super Formula Lights for yet another season, however, he was promoted to the KCMG team in the Super Formula Championship, following the withdrawal of Kalle Rovanperä for the season due to a medical issue. Nonaka will drive car No. 9, and his team-mate will be Kenta Yamashita.

Super GT Nonaka makes his Super GT GT300 debut with Team Tsuchiya with Takashi Matsui partnering him. He continued racing with the same team, but with new partner Togo Suganami. Unfortunately, he only managed to race for four rounds, as the last round he did at Fuji Speedway, his car caught on fire and burned badly and Nonaka safely out from the incident. Nonaka joined Saitama Toyopet GreenBrave as a third driver. He won the race but did not take a single lap thus was not classified for points. In 2024, Nonaka was promoted to full-time seat with 2023 GT300 champion team Saitama Green Brave, as he replaced Kohta Kawaai.

Other series In 2023, Nonaka raced in GT World Challenge Asia with Toyota Gazoo Racing Indonesia. He claimed 5 wins from 6 races. Nonaka stayed with the team for SRO Japan Cup for two seasons in 2024 and 2025.

Racing record Career summary Season still in progress. ‡ Team standings

Complete F4 Japanese Championship results (key) (Races in bold indicate pole position; races in italics indicate points for the fastest lap of top ten finishers) Year Team 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DC Points 2019 TOM'S Spirit OKA1 OKA2 FUJ11 FUJ12 SUZ1 SUZ2 FUJ21 FUJ22 AUT1 AUT2 SUG1 SUG2 MOT1 MOT2 8th 89 2020 TGR-DC Racing School FUJ11 FUJ12 FUJ13 SUZ1 SUZ2 SUZ3 MOT1 MOT2 MOT3 FUJ21 FUJ22 FUJ23 3rd 123 2021 TGR-DC Racing School FUJ11 FUJ12 SUZ1 SUZ2 MOT11 MOT12 MOT13 SUG1 SUG2 SUG3 MOT21 MOT22 FUJ21 FUJ22 1st 217

Complete Super Formula Lights results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Complete Super GT Results

Complete Super Formula results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Season still in progress.