[1] Following intermediate success in this category, he began racing in the Formula Challenge Japan series in 2010, and eventually became champion in 2011, aged 18.

[citation needed] During his final year of Japanese Formula 3, Katsuta began rallying at the local level.

He began with a Toyota GT86 in the JN-5 class of the Japan Rally Championship (a series his father, Norihiko, has won eight times).

Katsuta's first rallies with Tommi Mäkinen Racing were in local Finnish and Latvian events, driving a Subaru Impreza WRX.

Beginning in 2017, Katsuta would be participating in a full-season World Rally Championship program in the WRC-2 category, alongside Hiroki Arai.

Towards the end of the 2018 season, Toyota announced their intentions to eventually run Katsuta in a World Rally Car potentially by 2020.

[8] Katsuta's first outing with a Toyota Yaris WRC was at the SM-Itäralli, a round of the Finnish championship, in which he would impress with a victory.