The All Japan Road Race Championship is the premiere motorcycle road racing championship in Japan. It is run by the Motorcycle Federation of Japan (MFJ) (日本モーターサイクルスポーツ協会) – the Japanese affiliate of the FIM.

Katsuyuki Nakasuga is a Japanese motorcycle racer. He races a factory Yamaha YZF-R1 in the JSB1000 class of the All Japan Road Race Championship. He has won the Suzuka 8 Hours four times and the JSB1000 championship title twelve times.