Yūki Okamoto

is a Japanese motorcycle racer who competes in the Supersport World Championship for Yamaha Ten Kate Racing, having raced for the same team in 2025.

Okamoto is the 2024 All Japan JSB1000 champion, as well as the 2018 and 2020 All Japan ST600 champion.

Early life Okamoto was born in the city of Yashio, in Saitama, Japan. He began riding a pocket bike at the age of six, together with his brother, both influenced by their father. Okamoto was invited to join the Norifumi Abe-founded Team Norick around the age of 14, a racing school aimed at young Japanese riders, which Grand Prix motorcycle racers like Kohta Nozane have attended. In 2015, he participated in the ST600 Championship and won the Sugo and Tsukuba races.

Career All Japan Road Race Championship (2016–2024) J-GP2 In 2016, Okamoto entered the All Japan Road Race Championship J-GP2 class, aboard a Yamaha YZW-N6 prototype. In the opening round at Tsukuba, Okamoto crashed and suffered a broken femur in addition to a fractured ocular bone. He finished the season with a best-place finish of 17th, and 26th overall.

ST600 In 2017, Okamoto stepped down to the ST600 class of the All Japan Road Race Championship with 51Garage Team Iwaki. He claimed his maiden win in the second round at Sportsland Sugo, with an advantage of over nine seconds in the rain. He would also set his first ST600 pole position at Autopolis and closed off the season with a second career win at Suzuka. Okamoto would face his second ST600 season in 2018, and won the second race of the calendar at Sugo again. He claimed four more podiums across the season, including a second win at Tsukuba, and was crowned ST600 champion at the 50th MFJ Grand Prix at Suzuka, ahead of Tomoyoshi Koyama. Okamoto remained in the category for 2019 and won the opening round at Motegi, including a pole position and a fastest lap. . He would finish on the podium on three more occasions throughout the season, including a win at Tsukuba, but lost his title chances after a crash in the final round.

Okamoto faced his final ST600 season in 2020. He claimed victory in the opening round at Sugo, followed by a second place at Autopolis and a second win of the season at Motegi. Okamoto was crowned All Japan ST600 champion for a second time in the final round at Suzuka, following a fourth-place finish.

ST1000 In 2021, Yamaha promoted Okamoto to the ST1000 class after four full seasons in ST600, including two championships. Okamoto finished third in his debut race in the season opener at Motegi and claimed his maiden pole position in wet conditions at Tsukuba. He would finish on the podium in three more occasions and ended the season with his first class win at Autopolis.

JSB1000 On 8 February 2022, Yamaha announced Okamoto would be stepping up to the JSB1000 class with the Yamaha Factory Racing Team, with Katsuyuki Nakasuga as teammate. Okamoto finished in second place in Race 2 of the opening round and would secure podium finishes in the next six races behind teammate Nakasuga. During the Autopolis round's qualifying practice, Okamoto fell and injured his leg, which made him sit out the following two races. He finished his rookie season in third place behind riders' champion Nakasuga and Kazuki Watanabe.

In 2023, Okamoto closed the gap with his teammate Nakasuga, coming second in every race he finished except for Sugo Race 1, where he clinched his maiden JSB1000 win. In the final lap of the last round at Suzuka, Okamoto was leading the race into the final chicane when Nakasuga made contact with him, collecting both in the process. Both failed to cross the finish line, with his teammate being disqualified for the action. Okamoto ended the season as championship runner-up, 37 points behind his teammate, who took the crown for another year.

Okamoto faced his third full season in the JSB1000 class in 2024. He stayed on the podium in every race of the calendar, winning for the first time in the third round at Sugo, followed by three consecutive victories at the Autopolis and Okayama rounds. Coming into Race 2 of the final round at Suzuka, he and Nakasuga were tied on points. Okamoto was leading the race when the Safety Car was deployed, bunching up the field and bringing Nakasuga back into contention. After the Safety Car had been called in, Okamoto was passed by Ryo Mizuno and Nakasuga on the main straight, but the latter had trouble trying to stop the bike into Turn 1 and fell. Okamoto crossed the line in third place behind Mizuno and Nozane, and was crowned JSB1000 champion.

Supersport World Championship (2025–) Yamaha Ten Kate Racing On 6 November 2024, Yamaha announced Okamoto would be moving to the 2025 Supersport World Championship with Ten Kate Racing. Ahead of his debut in the category, Okamoto stated that the biggest challenges he expected to face were the track adaptation and Pirelli tyre life, as well as the jump from the JSB Yamaha YZF-R1 to the Supersport YZF-R9.

During Day 1 of the pre-season tests held at Phillip Island, Okamoto crashed and suffered a fractured tailbone and a dislocation, which made him sit out the rest of the tests, as well as the season opener at the same track. His rookie season in the World Championship was underwhelming, only scoring points in Cremona Race 2. During the Qualifying Practice of the Donington Park round, Okamoto was involved in a serious accident after a collision with another rider, and was diagnosed with a concussion, chest injury and collarbone injury. He missed the following two rounds as a result, and concluded the season in 30th place in the championship standings.

On 25 November 2025, Yamaha announced Okamoto's renewal for a second season with Ten Kate Racing for the 2026 Supersport World Championship.

Career statistics All Japan Road Race Championship Races by year

(key) (Races in bold indicate pole position; races in italics indicate fastest lap) Year Class Bike 1 2 3 4 5 6 7 8 9 10 11 12 13 Pos Pts 2016 J-GP2 Yamaha TSU1 TSU2 MOT AUT SUG MOT OKA SUZ 26th 9.7 2017 ST600 Yamaha TSU SUG MOT AUT OKA SUZ 3rd 120 2018 ST600 Yamaha MOT SUG TSU1 TSU2 AUT OKA SUZ 1st 145 2019 ST600 Yamaha MOT SUG TSU1 TSU2 OKA AUT SUZ 3rd 126 2020 ST600 Yamaha SUG OKA AUT MOT SUZ 1st 93 2021 ST1000 Yamaha MOT SUG TSU1 TSU2 SUZ OKA AUT 5th 77 2022 JSB1000 Yamaha MOT1 MOT2 SUZ1 SUZ2 AUT1 AUT2 SUG1 SUG2 AUT OKA SUZ1 SUZ2 SUZ3 3rd 173 2023 JSB1000 Yamaha MOT1 MOT2 SUZ1 SUZ2 SUG1 SUG2 MOT AUT1 AUT2 OKA SUZ1 SUZ2 2nd 208 2024 JSB1000 Yamaha SUZ MOT1 MOT2 SUG1 SUG2 MOT AUT1 AUT2 OKA SUZ1 SUZ2 1st 230 – Rider did not finish the race, but was classified as he completed more than ~75% of the race distance. – Half points were awarded based on the qualifying results at the 2018 Okayama round, due to the approach of Typhoon Trami.

Supersport World Championship By season

Season Motorcycle Team Race Win Podium Pole FLap Pts Plcd Yamaha YZF-R9 Yamaha Ten Kate Racing 18 0 0 0 0 2 30th Yamaha YZF-R9 Yamaha Ten Kate Racing 10 0 0 0 0 3* 23rd* Total 28 0 0 0 0 5

Races by year

(key) (Races in bold indicate pole position; races in italics indicate fastest lap) Year Bike 1 2 3 4 5 6 7 8 9 10 11 12 Pos Pts R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 Yamaha AUS AUS POR POR NED NED ITA ITA CZE CZE EMI EMI GBR GBR HUN HUN FRA FRA ARA ARA POR POR SPA SPA 30th 2 Yamaha AUS AUS POR POR NED NED HUN HUN CZE CZE ARA ARA EMI EMI GBR GBR FRA FRA ITA ITA POR POR SPA SPA 23rd* 3*

Season still in progress.