Mosport International Raceway
Formerly Mosport Park
2.459 Mile Road Course
Bowmanville, Ontario
CASC sanctioned 1974-77, 79, 81-82
FIA sanctioned 1983
ECAR sanctioned 1987-88
SCCA sanctioned 1989, 92-94
IMSA sanctioned 2009
| Race # | Date | Miles | Winner |
| 1 | 7/2/1974 | 100.819 | Bill Brack |
| 2 | 7/20/1975 | 100.819 | Elliot Forbes-Robinson |
| 3 | 8/22/1976 | 100.819 | Bobby Rahal |
| 4 | 5/2/1977 | 98.36 | Price Cobb |
| 5 | 8/19/1979 | 98.36 | Kevin Cogan |
| 6 | 6/14/1981 | 98.36 | Jacques Villeneuve (I) |
| 7 | 6/6/1982 | 98.36 | Whitney Ganz |
| 8 | 9/12/1982 | 98.36 | Whitney Ganz |
| 9 | 9/11/1983 | 98.36 | Roberto Moreno |
| 10 | 6/7/1987 | 98.36 | Calvin Fish |
| 11 | 6/19/1988 | 98.36 | Colin Trueman |
| 12 | 6/25/1989 | 61.475 | Jocko Cunningham |
| 13 | 9/20/1992 | 73.77 | David Empringham |
| 14 | 6/20/1993 | 73.77 | Claude Bourbonnais |
| 15 | 5/22/1994 | 73.77 | Greg Ray |
| 16 | 8/30/2009 | 81.147 | Jonathan Summerton |