Imahira won twice on the 2014 Japan Challenge Tour en route to winning the season money list title.

[citation needed] Imahira played in the 2016 Open Championship for his first major appearance.

[8] Imahira was 53rd in the world rankings at the end of 2018 and missed out on qualification for the 2019 Masters Tournament, for which the top-50 qualified automatically.

this list may be incomplete *Note: Tournament shortened to 36/54 holes due to weather.

CUT = missed the half-way cut "T" = tied NT = No tournament due to the COVID-19 pandemic 1Cancelled due to COVID-19 pandemic QF, R16, R32, R64 = Round in which player lost in match play DQ = Disqualified NT = No tournament "T" = Tied