| | "Rnd","Circuit","GTP Winning Team |
| | GTP Winning Drivers","GTO Winning Team |
| | GTO Winning Drivers","GTU Winning Team |
| | GTU Winning Drivers","Results" |
| | "1","Daytona","#00 Kreepy Krauly Racing","#4 Stratagraph Inc.","#76 Malibu Grand Prix","Results" |
| | "1","Daytona","Sarel van der Merwe |
| | Graham Duxbury |
| | Tony Martin","Terry Labonte |
| | Billy Hagan |
| | Gene Felton","Jack Baldwin |
| | Jim Cook |
| | Ira Young |
| | Bob Reed","Results" |
| | "2","Miami","#04 Group 44","#47 Dingman Bros. Racing","#99 All American Racers","Results" |
| | "2","Miami","Doc Bundy |
| | Brian Redman","Walt Bohren","Chris Cord","Results" |
| | "3","Sebring","#48 DeNarvaez Enterprises","#4 Stratagraph Inc.","#76 Malibu Grand Prix","Results" |
| | "3","Sebring","Mauricio DeNarvaez |
| | Hans Heyer |
| | Stefan Johansson","Terry Labonte |
| | Billy Hagan |
| | Gene Felton","Jack Baldwin |
| | Bob Reed |
| | Ira Young","Results" |
| | "4","Road Atlanta","#16 Marty Hinze Racing","#4 Stratagraph Inc.","#76 Malibu Grand Prix","Results" |
| | "4","Road Atlanta","Don Whittington","Billy Hagan |
| | Gene Felton","Jack Baldwin |
| | Bob Reed","Results" |
| | "5","Riverside","#56 Blue Thunder Racing","#38 Mandeville Auto Tech","#87 Performance Motorsports","Results" |
| | "5","Riverside","Don Whittington |
| | Randy Lanier","Roger Mandeville |
| | Amos Johnson","Elliot Forbes-Robinson |
| | John Schneider","Results" |
| | "6","Laguna Seca","#56 Blue Thunder Racing","#77 Brooks Racing","#99 All American Racers","Results" |
| | "6","Laguna Seca","Randy Lanier","John Bauer","Jim Adams","Results" |
| | "7","Charlotte","#56 Blue Thunder Racing","#4 Stratagraph Inc.","#99 All American Racers","Results" |
| | "7","Charlotte","Bill Whittington |
| | Randy Lanier","Billy Hagan |
| | Gene Felton","Chris Cord |
| | Jim Adams","Results" |
| | "8","Lime Rock","#00 Kreepy Krauly Racing","#38 Mandeville Auto Tech","#76 Malibu Grand Prix","Results" |
| | "8","Lime Rock","Sarel van der Merwe","Roger Mandeville","Jack Baldwin","Results" |
| | "9","Mid-Ohio","#14 Holbert Racing","#91 Electrodyne","#66 Mike Meyer Racing","Results" |
| | "9","Mid-Ohio","Al Holbert |
| | Derek Bell","Chester Vincentz |
| | Dave White","Jack Dunham |
| | Jeff Kline","Results" |
| | "10","Watkins Glen","#14 Holbert Racing","#91 Electrodyne","#87 Performance Motorsports","Results" |
| | "10","Watkins Glen","Al Holbert |
| | Jim Adams |
| | Derek Bell","Chester Vincentz |
| | Jim Mullen","Elliot Forbes-Robinson |
| | John Schneider","Results" |
| | "11","Portland","#56 Blue Thunder Racing","#51 Corvette","#76 Malibu Grand Prix","Results" |
| | "11","Portland","Bill Whittington |
| | Randy Lanier","David Schroeder |
| | Tom Hendrickson","Jack Baldwin","Results" |
| | "12","Sears Point","#56 Blue Thunder Racing","#77 Brooks Racing","#98 All American Racers","Results" |
| | "12","Sears Point","Bill Whittington","John Bauer","Dennis Aase","Results" |
| | "13","Road America","#14 Holbert Racing","#91 Electrodyne","#66 Mike Meyer Racing","Results" |
| | "13","Road America","Al Holbert |
| | Derek Bell","Chester Vincentz |
| | Jim Mullen","Jack Dunham |
| | Jeff Kline","Results" |
| | "14","Pocono","#14 Holbert Racing","#65 English Enterprises","#87 Performance Motorsports","Results" |
| | "14","Pocono","Al Holbert |
| | Derek Bell","Gene Felton","Elliot Forbes-Robinson |
| | John Schneider","Results" |
| | "15","Michigan","#56 Blue Thunder Racing","#91 Electrodyne","#84 Dole Racing","Results" |
| | "15","Michigan","Bill Whittington |
| | Randy Lanier","Chester Vincentz |
| | Jim Mullen","Clay Young","Results" |
| | "16","Watkins Glen","#57 Blue Thunder Racing","#91 Electrodyne","#84 Dole Racing","Results" |
| | "16","Watkins Glen","Dale Whittington |
| | Randy Lanier","Chester Vincentz |
| | Jim Mullen","Clay Young","Results" |
| | "17","Daytona","#14 Holbert Racing","#67 Roush Racing","#87 Performance Motorsports","Results" |
| | "17","Daytona","Al Holbert |
| | Derek Bell","Wally Dallenbach, Jr. |
| | Willy T. Ribbs","Elliot Forbes-Robinson |
| | John Schneider","Results" |
| |
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