


Hiroki Otsu (born 25 May 1994) is a Japanese racing driver who is currently competing in Super GT with ARTA, and in Super Formula for TCS Nakajima Racing as a substitute driver for Naoki
Yamamoto.Otsu started his motorsport career in karting in 2007, in which he remained active until 2010. In 2013, he switched to formula racing to participate in the Suzuka Circuit Racing School Formula, which is only intended to train drivers. In 2014, he competed in the JAP Japanese Formula 4 Championship and finished fifth in the FC class. In 2015, he made the move to the new Japanese Formula 4 Championship, where he raced as a Honda protégé for the Honda Formula Dream Project team. He took five podiums and finished third in the final standings with 108 points, behind Sho Tsuboi and Tadasuke Makino.
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