| Driver | Machine | Class | Overall |
1975 | Ray Walle, Tom Reddy | RX-3 | 1st in GTU Touring | 14th |
1979 | Yoshimi Katayama, Yojiro Terada, Takashi Yorino | RX-7 | 1st in GTU | 5th |
1982 | Yoshimi Katayama, Yojiro Terada, Takashi Yorino | RX-7 | 1st in GTO | 4th |
1982 | Kathy Rude, Lee Mueller, Allan Moffett | RX-7 | 1st in GTU | 6th |
1983 | Pete Halsmer, Bob Reed, Rick Knoop, Tom Gloy | RX-7 | 1st in GTO | 3rd |
1983 | Lee Mueller, Hugh McDonough, Terry Visger | RX-7 | 1st in GTU | 12th |
1984 | Ira Young, Bob Reed, Jack Baldwin, Jim Cook | RX-7 | 1st in GTU | 12th |
1985 | Kelly Marsh, Ron Pawley, Don Marsh | Argo-Mazda | 1st in Lights | 10th |
1985 | Amos Johnson, Jack Dunham, Yojiro Terada | RX-7 | 1st in GTU | 12th |
1986 | Frank Rubino, Ray Mummery, John Schneider | Argo-Mazda | 1st in Lights | 7th |
1986 | Amos Johnson, Dennis Shaw, Jack Dunham | RX-7 | 1st in GTU | 8th |
1987 | Amos Johnson, Dennis Shaw, Bob Lazier | RX-7 | 1st in GTU | 10th |
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| Driver | Machine | Class | Overall |
1988 | Amos Johnson, Dennis Shaw, Bob Lazier | RX-7 | 1st in GTU | 15th |
1989 | Al Bacon, Bob Reed, Rod Millen | RX-7 | 1st in GTU | 12th |
1990 | John Grooms, Michael Greenfield, Frank Jellinek Jr. Peter Greenfield | Argo-Mazda | 1st in Lights | 9th |
1990 | Peter Uria, Bob Dotson, Jim Pace | RX-7 | 1st in GTU | 12th |
1991 | Dick Greer, Al Bacon, Mike Mees, Peter Uria | RX-7 | 1st in GTU | 13th |
1992 | Al Bacon, Dick Greer, Mike Mees, Peter Uria | RX-7 | 1st in GTU | 7th |
1993 | John Grooms, Frank Jellinek Jr., Jim Downing,Tim McAdam | Kudzu-Mazda | 1st in Lights | 7th |
1993 | Dick Greer, Al Bacon, Peter Uria, Mike Mees | RX-7 | 1st in GTU | 9th |
2001 | Howard Katz, Jim Downing, AJ Smith, Chris Ronson | Kudzu-Mazda | 1st in SRP | 11th |
2008 | Sylvain Tremblay, David Haskell, Nick Ham, Raphael Matos | RX-8 | 1st in GT | 10th |
2010 | Sylvain Tremblay, David Haskell, Nick Ham, Jonathan Bomarito | RX-8 | 1st in GT | 7th |
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