Sato made his single-seater debut with Honda Formula Dream Project in the 2018 FIA F4 Japanese Championship. He finished seventh in the championship with 58 points in his first season. In 2019, Sato dominated the Japanese F4 circuit en route to his first racing championship. He won 11 out of the season's 14 races, including eight wins in a row to end the season, and finished on the podium in all but one race. Sato clinched the 2019 championship in the penultimate race meeting at Sportsland Sugo, and won the championship by 164 points.[citation needed]
Sato would return to the Japanese circuit after just one season in Europe, competing in the 2021 Super Formula Lights championship with TODA Racing. He won four of the last six races of the season, including a sweep of the August race meeting at Motegi, to finish the year third in the championship behind champion Teppei Natori, and runner-up Giuliano Alesi.[citation needed]
Super GT
Sato made his Super GT Series debut in 2021, driving the ARTA Honda NSX GT3 in the GT300 class along with two-time series champion Shinichi Takagi. The team finished fourth in the championship, collecting three podium finishes at Fuji Speedway, Sugo, and Motegi, although their results were intermixed with four finishes outside the top nineteen.[citation needed]
In the final race of the season at Fuji, Sato influenced the outcome of the GT500 class championship in controversial manner. While racing the Subaru BRZ of Hideki Yamauchi for position, he went for an overtake into turn one, but braked too late and crashed into the GT500 class Stanley Honda NSX-GT of Naoki Yamamoto, who was in position to win the GT500 championship with 15 laps remaining.[2] The incident took out both Sato and Yamamoto from the race, and it ultimately cost Yamamoto and Team Kunimitsu the GT500 titles, which were won by TOM's and drivers Yuhi Sekiguchi and Sho Tsuboi.[3] After the race, Sato admitted that he was fully responsible for the incident.[4] For 2022, Sato was dropped from Honda's Super GT lineup with his place at the No. 55 ARTA team taken by rookie Iori Kimura.[5] However, Honda affirmed their commitment to Sato by announcing him as a Super Formula driver for 2022.
Sato returns to Super GT in 2024, as he competes in GT500 with his former team ARTA. He is partnered with Hiroki Otsu.[6]
Super Formula
Sato took part in the Super Formula manufacturer and rookie test at Suzuka Circuit on 7-9 December, driving the number 15 Red Bull Mugen Team Goh car. Sato finished as the fastest of four rookies on the final day.[7] On 14 January 2022, Sato was announced as a Super Formula driver for Honda.[5] He joined Team Goh, who spun off from Team Mugen and formed a two-car team in 2022. In February 2022, it was announced that Sato would join the Red Bull Junior Team. He would be released from the Junior Team the next year.[8] Sato won Rookie of the Year honours ahead of his team mate, Atsushi Miyake, and recorded his first podium in the JAF Grand Prix Suzuka. Sato moved to Nakajima Racing to replace Toshiki Oyu.[9] Sato stays with Nakajima for 2024.