The Supertest Ladies Open was a golf tournament on the LPGA Tour from 1966 to 1969.LPGA Tournament Chronology 1960-1969 It was played in Ontario, Canada at the Sunningdale Golf Club in London from 1966 to 1967 and at the Bayview Golf & Country Club in Thornhill from 1968 to 1969. It was the first LPGA Tour event to be played in Canada. The title sponsor was Supertest Petroleum, a Canadian petroleum company.
Winners Ladies' Supertest Open 1969 Sandra Haynie
Supertest Canadian Open 1968 Carol Mann
Supertest Ladies' Open 1967 Carol Mann
Supertest Ladies Open 1966 Kathy Whitworth
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