Hashimoto first appeared in the PDC circuit competing in the 2009 Las Vegas Desert Classic qualifiers, as well as a Players Championship.

A month later, he was a quarter-finalist in the Japan Open and in November, he reached the final of the WDF Asia-Pacific Cup men's singles, losing to New Zealand's Koha Kokiri.

After winning his first leg, levelling the match at 1–1, the crowd started chanting his name to the tune of "Reach Up (Papa's Got a Brand New Pigbag)", which was used as a walk on by Adrian Lewis.

[6] In the second round they both lost their singles matches against the Northern Irish partnering of Brendan Dolan and Michael Mansell to exit the tournament.

[10] A number of darts players paid tribute to him including Gary Anderson, Hashimoto's opponent in the first round of the 2011 World Championship.