Katsuyuki Nakasuga won the MFJ All Japan Road Race Championship Series Superbike/JSB1000 season finale September 24 at Okayama International Circuit, in Okayama Prefecture, Japan.

Riding his Yamaha Factory Racing Team YZF-R1, Nakasuga won the 24-lap race by just 0.140 second over his teammate Yuki Okamoto.

Ryo Mizuno was a distant third on his Astemo Honda Dream SI Racing CBR1000RR-R Fireblade SP.

With the race victory, Nakasuga wrapped up his 12th MFJ All Japan Superbike/JSB1000 Championship.