PORSCHE RACING HISTORY1975 - Daytona 24 Hours
2 February 1975 - Daytona International Speedway, USA
Peter Gregg & Hurley Haywood win in a Porsche 911 Carrera RSR
Overall - 1st to 6th : GTO 1st to 11th : GTU - 1st, 2nd
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 911 Carrera RSR | 911 460 9054 | GTO | Peter Gregg (USA)/Hurley Haywood (USA) | Brumos Porsche (USA) | 1st | 1st | 7th | 684 laps |
| 11 | Porsche 911 Carrera RSR | 911 460 9049 | GTO | Michael Keyser (USA)/Billy Sprowls (USA)/Andres Contreras (MEX) | Toad Hall (USA) | 2nd | 2nd | 16th | 669 laps |
| 23 | Porsche 911 Carrera RSR | 911 360 0727 | GTO | Charlie Kemp (USA)/Carson Baird (USA) | Armor All (USA) | 3rd | 3rd | 11th | 668 laps |
| 30 | Porsche 911 Carrera RSR | 911 460 9048 | GTO | Jacques Bienvenue (CDN)/George Dyer (USA) | George Dyer (USA) | 4th | 4th | 12th | 665 laps |
| 4 | Porsche 911 Carrera RSR | 911 460 0037 | GTO | Bill Webbe (USA)/George Dickinson (USA)/Harry Theodoracopulos (USA) | Bill Webbe (USA) | 5th | 5th | 20th | 623 laps |
| 43 | Porsche 911 Carrera RSR | 911 360 0915 | GTO | John O'Steen (USA)/Dave Helmick (USA)/John Graves (USA) | Escar (USA) | 6th | 6th | 10th | 619 laps |
| 14 | Porsche 911 Carrera RSR | 005 0009 | GTO | Al Holbert (USA)/Elliott Forbes-Robinson (USA) | Porsche-Audi USA (USA) | 8th | 7th | 5th | 607 laps - Gearbox |
| 5 | Porsche 911 Carrera RSR | 911 360 0865 | GTO | Guillermo Rojas (MEX)/Héctor Rebaque (MEX)/Fred van Beuren, Jr. (MEX) | Hector Rebaque (MEX) | 9th | 8th | 8th | 592 laps |
| 60 | Porsche 911 S | GTU | Rusty Bond (USA)/George Rollin (USA)/John Belperche (USA) | Rusty Bond | 10th | 1st | 32nd | 567 laps | |
| 92 | Porsche 911 Carrera RSR | 911 360 0386 | GTO | Mike Tillson (USA)/Dieter Oest (USA) | Oest/Tillson (USA) | 11th | 9th | 34th | 566 laps |
| 13 | Porsche 911 Carrera RSR | GTO | Randolph Townsend (USA)/John Thomas (USA)/Peter Papke (USA) | Randolph Townsend | 12th | 10th | 25th | 562 laps | |
| 34 | Porsche 911 S | GTU | George Drolsom (USA)/Bob Nagel (USA) | George Drolsom (USA) | 13th | 2nd | 29th | 558 laps | |
| 67 | Porsche 911 Carrera RSR | 911 360 0701 | GTO | David McClain (USA)/Dave White (USA) | David McClain | 15th | 11th | 23rd | 546 laps |
| 44 | Porsche 911 S | GTU | John Freyre (USA)/Albert Naon (USA)/Tony Garcia (USA) | Delta Racing | 16th | 4th | 50th | 542 laps | |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA)/Nick Engels (USA) | John E. Hulen (USA) | 18th | 5th | 37th | 528 laps | |
| 45 | Porsche 911 S | GTU | Armando Ramirez (USA)/Camilo Mutiz (CO)/Juan Montalvo (C)/Mandy Alvarez (USA) | Delta Racing | 23rd | 6th | 39th | 435 laps - DNF | |
| 95 | Porsche 911 Carrera RSR | GTO | Ramon de Izaurieta (MEX)/Sergio Tabe (MEX)/Fidel Martinez (MEX) | Hector Rebaque | 27th | 18th | 28th | 407 laps - DNF | |
| 51 | Porsche 914/6 | GTU | Len Jones (USA)/Robert Kirby (USA)/John Hotchkis (USA) | Johnson-Bozzoni Porsche-Audi | 36th | 10th | 30th | 229 laps - Engine | |
| 9 | Porsche 911 Carrera RSR | 911 360 0610 | GTO | Juan Carlos Bolaños (MEX)/Michel Jourdain, Sr (MEX)/Hans Heyer (D) | Juan Carlos Bolanos (MEX) | 39th | 27th | 6th | 191 laps - Engine |
| 89 | Porsche 911 S | GTU | Don Parish (USA)/Tom Countryman (USA)/Jim Secher (USA) | Barrick Motor Racing (USA) | 40th | 12th | 33rd | 158 laps - DNF | |
| 84 | Porsche 911 S | GTU | Klaus Selbert (USA)/David Biggs (USA) | Klaus Selbert | 41st | 13th | 45th | 151 laps - DNF | |
| 16 | Porsche 911 S | GTU | Paul Spruell (USA)/Bill Bean (USA) | Bill Bean | 48th | 14th | 38th | 35 laps |
World Championship for Makes IMSA - International Motor Sport Association Daytona 24 Hours
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