Helmut Kassner - Results at Assen

Year	Grand Prix	No.	Team	Maufacturer	Grid	Position	Pts Points
1975	Dutch TT			Yamaha		11	0
1976	Dutch TT	19		Suzuki		9	2
1977	Dutch TT	43	Boeri Giudici Racing Team	Suzuki		Ret	0
				Avg.	0	10	2