Jacob Roulstone (born 4 February 2005) is an Australian Grand Prix motorcycle racer. He competed for Tech3 Racing in the Moto3 World Championship in 2024 and 2025.
Roulstone was born in Jamberoo, Australia. He started riding dirt bikes from a young age but eventually switched to road.
He was selected to participate in the 2019 Asia Talent Cup season, at the age of 14. He managed to stay in the points consistently and clinched three top 10 finishes.
For 2020, he joined the European Talent Cup, where he would spend the next two years. In his second season in 2021, he won the opening race in Estoril and earned two more podiums in the last round in Valencia. These results secured him a spot in the FIM JuniorGP and Red Bull MotoGP Rookies Cup for 2022 and 2023.
In 2022, Roulstone slowly adapted to both new categories, scoring points consistently in the second half of the year. He had a much stronger 2023 season, where he scored two podiums in both JuniorGP and Red Bull MotoGP Rookies Cup championships, finishing seventh and fifth at the end of the year, respectively.
On 24 September 2023, it was announced that Roulstone would be making his Grand Prix debut in the 2024 Moto3 World Championship with Tech3 Racing, partnering Daniel Holgado.
Roulstone had a consistent first year in the World Championship, scoring points in many races and achieving several top 10 finishes. Midway through the season, he signed for another year with Tech3. He finished 15th in the final standings.
During pre-season training in January 2025, Roulstone fractured his vertebrae in Jerez, which made him miss the first two rounds in Thailand and Argentina.
() (Races in bold indicate pole position; races in italics indicate fastest lap)
() (Races in bold indicate pole position; races in italics indicate fastest lap)
() (Races in bold indicate pole position, races in italics indicate fastest lap)
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)
() (Races in bold indicate pole position; races in italics indicate fastest lap)
Season still in progress.