| 15.6.1980 | 100 mile Brainerd | 03 | 934 | Werner Frank | | 13th |
| 15.6.1980 | Trans-Am Portland | 18 | 911 | David Schroeder | Motor Sport International | 17th |
| 15.6.1980 | Trans-Am Portland | 23 | 914/6 | Bob Zulkowski | Metal Craft Racing | 20th |
| 15.6.1980 | 100 mile Brainerd | 34 | 911 S | George Drolsom | Drolsom Racing | 14th |
| 15.6.1980 | 100 mile Brainerd | 46 | 911 Carrera RSR | Mauricio de Narváez | de Narvaez Enterprises | 23rd |
| 15.6.1980 | 100 mile Brainerd | 51 | 911 Carrera RSR | John Hotchkis | Kirby-Hitchcock Racing | 10th |
| 15.6.1980 | 100 mile Brainerd | 54 | 911 Carrera RSR | Tony Garcia | Montura Racing | 4th |
| 15.6.1980 | Trans-Am Portland | 57 | 911 SC | Monte Shelton | Porsche-Audi Northwest | 3rd |
| 15.6.1980 | Trans-Am Portland | 59 | 911 SC | Nick Feodorhoff | | 25th |
| 15.6.1980 | 100 mile Brainerd | 62 | 911 | Bill Koll | Koll Motor Sports | 11th |
| 15.6.1980 | 100 mile Brainerd | 64 | 911 | Dennis Aase | Alan Johnson Racing | 15th |
| 15.6.1980 | 100 mile Brainerd | 68 | 911 Carrera RSR | Luis Mendez | Mendez Racing | 1st |
| 15.6.1980 | 24 h Le Mans | 71 | 935 K3 | Rahal / Moffat / Garretson | Dick Barbour | DNF |
| 15.6.1980 | 24 h Le Mans | 72 | 935 | Sherwin / Kirby / Harmon | Dick Barbour - Wynn's International | DNF |
| 15.6.1980 | 24 h Le Mans | 73 | 935 JLP-2 | Paul / Edwards / Paul, Jr. | J.L.P. Racing | 9th |
| 15.6.1980 | 24 h Le Mans | 80 | 934 | Gonzalez / Romero / Febles | Diego Febles Racing | DNF |
| 15.6.1980 | 24 h Le Mans | 85 | 935 K3 | Whittington / Haywood / Whittington | Whittington Bros. | DNF |
| 15.6.1980 | 24 h Le Mans | 89 | 935 | Snobeck / Poulain / Destic | Hervé Poulain | 20th |
| 15.6.1980 | 24 h Le Mans | 90 | 934 | Bourdillat / Ennequin / Bernard | Georges Bourdillat | 24th |
| 15.6.1980 | 24 h Le Mans | 91 | 934 | Bussi / Salam / Grandet | A.S.A. Cachia | DNF |
| 15.6.1980 | 100 mile Brainerd | 91 | 911 Carrera RSR | Roger Schramm | Framm Promotions | 8th |
| 15.6.1980 | 24 h Le Mans | 93 | 911 SC | Perrier / Carmillet | Thierry Perrier | 16th |
| 15.6.1980 | 24 h Le Mans | 94 | 934 | Alméras / Alméras / Hoepfner | Equipe Alméras Freres | DNF |
| 15.6.1980 | Trans-Am Portland | 98 | 911 SC | John Bauer | Green Racing | 2nd |
| 15.6.1980 | Gr.5 Varano | | 935 | "Victor" | "Victor" | 1st |
| 15.6.1980 | Gr.5 Varano | | 911 Carrera | Ramella | | ?th |
| 15.6.1980 | CI Gr.4 Varano | | | Villa | | ?th |
| 22.6.1980 | DRM Norisring | 2 | 935 K3/80 | Jochen Mass | Jägermeister Kremer Racing | DNF |
| 22.6.1980 | DRM Norisring | 3 | 935 K3/80 | | Porsche Racing Kremer | DNA |
| 22.6.1980 | DRM Norisring | 6 | 935 J | Rolf Stommelen | Liqui Moly Equipe | DNF |
| 22.6.1980 | DRM Norisring | 7 | 935 J | Volkert Merl | Liqui Moly Equipe | 2nd |
| 22.6.1980 | DRM Norisring | 8 | 935 K3/80 | John Fitzpatrick | Dick Barbour Racing | 1st |
| 22.6.1980 | DRM Norisring | 9 | 935/80 | Bob Wollek | Gelo Racing Team Georg Loos Werbe KG | DNF |
| 22.6.1980 | DRM Norisring | 10 | 935/77A | Dieter Schornstein | Vegla-Racing Team-Aachen | 5th |
| 22.6.1980 | DRM Norisring | 11 | 935 K3 | Jürgen Lässig | Weralit-Elora-Team | 3rd |
| 22.6.1980 | DRM Norisring | 12 | 935 | Klaus Böhm | Jürgensen | 6th |
| 22.6.1980 | DRM Norisring | 12 | 935 | | Valvoline Racing Hamburg | DNA |
| 22.6.1980 | DRM Norisring | 14 | 935/77A | Claude Haldi | Meccarillos Racing | DNF |
| 22.6.1980 | DRM Norisring | 15 | 935 K3 | | Porsche Kremer Racing | DNA |
| 22.6.1980 | DRM Norisring | 16 | 935/77A | Franz Gschwender | Franz Gschwender | 8th |
| 22.6.1980 | DRM Norisring | 31 | 934 | Angelo Pallavicini | Lubrifilm Racing Team | DNA |
| 22.6.1980 | DRM Norisring | 32 | 934 | Sepp Reiter | Hans Obermaier | 9th |
| 22.6.1980 | DRM Norisring | 65 | 935 L1 | Jan Lundgårdh | Jan Lundgardh | DNF |
| 22.6.1980 | Zolder | 72 | 934 | Peter Pospieszczyk | Kannacher-GT-Racing | 1st |
| 29.6.1980 | Erding [S/GT/Gr.5] | 8 | 935/77A | Franz Gschwender | Franz Gschwender | 1st |
| 29.6.1980 | Erding [S/GT/Gr.5] | 10 | 935 RSR | Erich Schiebler | Vereinigung Süddeutscher Automobilsportler | DNA |
| 29.6.1980 | Erding [S/GT/Gr.5] | 11 | 911 Carrera | Michael Neumeister | MSW-Motorsportanzeigenwerbung | DNA |
| 29.6.1980 | Erding [S/GT/Gr.5] | 12 | 911 SC | Otto Übelhoer | Otto Uebelhör | DNA |
| 29.6.1980 | Erding [S/GT/Gr.5] | 32 | 910 | Sepp Greger | Vereinigung Süddeutscher Automobilsportler | DNA |
| 29.6.1980 | Gr.5 Pergusa | | 935 | "Victor" | "Victor" | 1st |
| 29.6.1980 | Gr.5 Pergusa | | | Guagliardo | | 2nd |
| 29.6.1980 | Gr.5 Pergusa | | | Mannino | | ?th |
| 29.6.1980 | Gr.5 Pergusa | | | Alfio La Spina | | 2nd |
| 4.7.1980 | 250 mile Daytona Paul Revere | 00 | 935 K3/80 | Field / Ongais | Interscope Racing | 4th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 04 | 911 Carrera RSR | Almeida / Rodriguez | T & R Racing | 20th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 08 | 911 SC | Wolters / Tilton | Moran Construction | 24th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 09 | 935 K3 | Paul / Paul, Jr. | Preston Henn | 2nd |
| 4.7.1980 | 250 mile Daytona Paul Revere | 6 | 935 K3/80 | John Fitzpatrick | Dick Barbour Racing | 1st |
| 4.7.1980 | 250 mile Daytona Paul Revere | 8 | 911 Carrera RSR | Chuck Grantham | | 39th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 30 | 935 J | Moretti / Mendez | Racing Associates Inc. | 5th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 32 | 935 | "Jamsal" / Barrientos | Scorpio Racing | 17th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 34 | 911 S | George Drolsom | Drolsom Racing | 23rd |
| 4.7.1980 | 250 mile Daytona Paul Revere | 38 | 911 Carrera RSR | Bonky Fernandez | Boricua Racing | 30th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 46 | 911 Carrera RSR | Mauricio de Narváez | DeNarvaez Enterprises | 14th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 52 | 911 | Swanson / Cripe | | 26th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 54 | 911 Carrera RSR | Tony Garcia | Montura Racing | 18th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 59 | 935/79 | Gregg / Haywood | Brumos | 3rd |
| 4.7.1980 | 250 mile Daytona Paul Revere | 68 | 911 Carrera RSR | Luis Mendez | Mendez Racing | 13th |
| 4.7.1980 | 250 mile Daytona Paul Revere | 89 | 911 Carrera RSR | Ernesto Soto | Hector Huerta Racing | 8th |
| 5.7.1980 | 6 h Watkins Glen | 0 | 935 K3/80 | Field / Ongais | Interscope Racing | 4th |
| 5.7.1980 | 6 h Watkins Glen | 00 | 935/77A | Field / Ongais | Interscope Racing | DNS |
| 5.7.1980 | 6 h Watkins Glen | 07 | 935 | Heimrath / Rutherford | Heimrath Racing | 11th |
| 5.7.1980 | 6 h Watkins Glen | 3 | 935 M16 | Busby / Mears / Gregg | Jim Busby | DNS |
| 5.7.1980 | 6 h Watkins Glen | 4 | 935 K3/80 | Barth / Merl | Dick Barbour Racing | 5th |
| 5.7.1980 | 6 h Watkins Glen | 5 | 935 K3 | McKitterick / Mendez | Racing Associates | 13th |
| 5.7.1980 | 6 h Watkins Glen | 6 | 935 K3/80 | Fitzpatrick / Redman | Dick Barbour Racing | 3rd |
| 5.7.1980 | 6 h Watkins Glen | 13 | 935 | Townsend / Grohs | Andial Racing | 8th |
| 5.7.1980 | 6 h Watkins Glen | 23 | 914/6 | Zulkowski / Pullyblank | Metal Craft Racing | 26th |
| 5.7.1980 | 6 h Watkins Glen | 26 | 911 SC Targa | Overby / Harmstad | Robert Overby | 27th |
| 5.7.1980 | 6 h Watkins Glen | 28 | 935 | Hinze / Whittington | Marty Hinze | 34th |
| 5.7.1980 | 6 h Watkins Glen | 30 | 935 J | Jöst / Moretti | Electrodyne Racing | 29th |
| 5.7.1980 | 6 h Watkins Glen | 36 | 934 | Jenner / Vincentz / Garretson | Electrodyne Racing | 18th |
| 5.7.1980 | 6 h Watkins Glen | 57 | 911 SC | Shelton / Leven | Porsche-Audi Northwest | 16th |
| 5.7.1980 | 6 h Watkins Glen | 69 | 935 K3 | Woods / Akin / Mendez | Racing Associates | 7th |
| 5.7.1980 | 6 h Watkins Glen | 71 | 935 K3 | Rahal | Dick Barbour Racing | 38th |
| 5.7.1980 | 6 h Watkins Glen | 73 | 935 JLP-2 | Paul, Jr. / Paul / Henn | JLP Racing | 14th |
| 5.7.1980 | 6 h Watkins Glen | 85 | 935 K3 | Whittington / Haywood / Whittington | Whittington Brothers Racing | 9th |
| 5.7.1980 | 6 h Watkins Glen | 91 | 911 Carrera RSR | Schramm / Bartling | Framm Promotions | DNS |
| 5.7.1980 | 6 h Watkins Glen | 94 | 935 K3 | Whittington / Haywood | Whittington Brothers Racing | DNA |
| 5.7.1980 | 6 h Watkins Glen | 98 | 911 SC | Bauer / Green | Green Racing | 12th |
| 6.7.1980 | Donington International | 2 | 935 K3/80 | Guy Edwards | Jägermeister Kremer Racing | 2nd |
| 6.7.1980 | Donington International | 4 | 935 J | Rolf Stommelen | Liqui Moly Equipe | DNA |
| 6.7.1980 | Donington International | 9 | 935/80 | Bob Wollek | Loos Team | DNA |
| 6.7.1980 | Donington International | 14 | 911 SC | Adrian Yates-Smith | Malaya Garage Ltd. | NC |
| 6.7.1980 | MN GT Donington | 14 | 911 SC | Adrian Yates-Smith | Malaya Garage Ltd. | DNA |
| 6.7.1980 | Donington International | 17 | 934 | Paul Edwards | Hassop Motors | NC |
| 6.7.1980 | Donington International | 20 | 911 Carrera RSR 3.0 | Simon Phillips | Simon Phillips | DNA |
| 6.7.1980 | Donington International | 22 | 934 | Richard Cleare | Richard Cleare | DNA |
| 6.7.1980 | Donington International | 44 | 935 K3 | Dudley Wood | Charles Ivey Racing | 6th |
| 6.7.1980 | Donington International | 65 | 935 L1 | Jan Lundgårdh | Jan Lundgardh | DNA |