Suzuki topped both wet qualifying sessions, beating Miura by 0.050 seconds in Q1 and Ryota Horachi by exactly half a second in Q2. Kento Omiya qualified close behind Suzuki in both sessions.

Miura briefly led the opening race before Suzuki reclaimed P1 into Turn 1. Suzuki went on to win by 7.908 seconds, with Miura second and Omiya third after holding off Horachi across the opening laps.

Race 2 began behind the Safety Car in worsening conditions, with racing resuming after four laps. Suzuki quickly built a gap at the front, winning by 33.778 seconds over Omiya. Omiya and Horachi traded second repeatedly before Omiya regained the position on Lap 12. Miura moved from fourth to third after passing Yu Oda and capitalising on Horachi losing time in traffic.

Miura's two podiums extended his championship lead to 11.5 points over Horachi, with Omiya a further 14.5 points behind in third. In the Masters' class, Masayuki Ueda also swept both races to take the points lead, moving 0.5 points clear of Yutaka Toriba.