October 5, 1985		Columbus Street Circuit, Columbus, OH	IMSA GTO/GTU	Steve Millen
October 6, 1985	Columbus Ford Dealers 500	Columbus Street Circuit, Columbus, OH	IMSA GTP/Lights	Price Cobb Drake Olsen
October 5, 1986		Columbus Street Circuit, Columbus, OH	IMSA GTO/GTU	Willy T. Ribbs
October 5, 1986	Columbus Ford Dealers 500	Columbus Street Circuit, Columbus, OH	IMSA GTP/Lights	Bob Wollek Scott Pruett
October 4, 1987	URS Turner Cam GT	Columbus Street Circuit, Columbus, OH	IMSA GTO/GTU	Jack Baldwin
October 4, 1987	Columbus Ford Dealers 500 Grand Prix	Columbus Street Circuit, Columbus, OH	IMSA GTP/Lights	Bobby Rahal
October 2, 1988	Turner Construction Camel GTO/GTU	Columbus Street Circuit, Columbus, OH	IMSA GTO/GTU	Irv Hoerr
October 2, 1988	Columbus Ford Dealers 500	Columbus Street Circuit, Columbus, OH	IMSA GTP/Lights	Geoff Brabham