Career
Hasegawa began his Grand Prix career in 1963 with Yamaha. He enjoyed his best season in 1966 when he finished the season in tenth place in the 250cc world championship.
長谷川 宏
Hasegawa began his Grand Prix career in 1963 with Yamaha. He enjoyed his best season in 1966 when he finished the season in tenth place in the 250cc world championship.
