August 12, 1950	4th Ulster Trophy	Dundrod Circuit, Dundrod, Northern Ireland	FIA Formula One	Peter Whitehead
June 2, 1951	5th Ulster Trophy	Dundrod Circuit, Dundrod, Northern Ireland	FIA Formula One	Giuseppe Farina
September 5, 1953	Tourist Trophy	Dundrod Circuit, Dundrod, Northern Ireland	FIA World Sports Car Championship	Pat Griffith Peter Collins