Tsuboi has “lost some confidence” after bruising 2021 season

Tsuboi, the 2018 All-Japan F3 champion, enjoyed a strong sophomore season in Japan’s premier single-seater category last year, scoring his first two wins en route to third in the standings behind Naoki Yamamoto and Ryo Hirakawa.
But the 26-year-old’s third campaign with the title-winning Inging squad proved little short of a disaster as he ended up 15th in the standings with a best finish of …Keep reading