in 2024. He joined
J1 League club
Shonan Bellmare in 2018. He joined
J1 League club
Sanfrecce Hiroshima for the
2024 season. On 31 July 2024, Ōhashi moved abroad for the first time, joining
Championship side
Blackburn Rovers for an undisclosed fee, signing a three-year deal. He scored on his debut in a 4–2 win over
Derby County. On 14 September 2024, Ōhashi scored a brace in a 3–0 home win over
Bristol City at
Ewood Park. Both goals were later nominated for the club's Goal of the Season award. Ōhashi finished the
2024–25 season as Blackburn's top goalscorer, scoring 10 goals in his first season in
England. Ōhashi scored his first goal of the
2025–26 season in a 3–0 win over
Hull City on 7 September 2025, a week later on 14 September 2025, he provided an assist for Japanese international teammate
Ryōya Morishita in a 1–0 win over
Watford, marking the first time two Japanese players had combined for a goal in the English divisions. On 20 February 2026, Ōhashi scored his first goal of the calendar year in a 1–0 win over local rivals
Preston North End, netting in the fifth minute of added time. In the following match on 24 February, he scored again in a 2–1 defeat to Bristol City. On April 22, Ohashi scored a brace in a 3–1 over
Sheffield United, securing Rovers safety in the Championship for the 2026–27 season. ==International career==