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