is a Japanese racing driver currently competing in Super GT as a third driver for HELM Motorsports.
Hiraki competed in F4 Japanese Championship from 2016 to 2020. He ended his last F4 season as a runner up while Hibiki Taira won the title.
Hiraki joined Team Mach alongside his brother Yuya in 2021. Reiji continued the next season with Sim-racer Yusuke Tomobayashi.
HELM Motorsports made their season debut in the GT300 class of Super GT in 2024. With Kohei Hirate as the main driver, alongside Yuya Hiraki, and Hiraki himself as the third driver.
In 2022, Hiraki alongside his older brother Yuya joined Super Formula Lights with their own team HELM Motorsports.
Hiraki alongside his older brother Yuya's HELM Motorsports made their debut in 2022 in Super Taikyu ST-X Class, with Yutaka Toriba as the third driver. In that season, they won the ST-X Class.
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)
<sup>â¡</sup> Half points awarded as less than 75% of race distance was completed.<br> <sup>(Number)</sup> Driver did not take part in this sprint race, points are still awarded for the teammate's result.<br> <sup>*</sup> Season still in progress.
() (Races in bold indicate pole position) (Races in italics indicate fastest lap)