PORSCHE RACING HISTORY1973 - Daytona 24 Hours
4 February 1973 - Daytona International Speedway, USA
Peter Gregg and Hurley Haywood win in the race debut of the 911 Carrera RSR
1st Overall : Class S3.0 - 1st, 2nd : Class GT+2.0 - 3rd : Class GT2.0 - 1st The race debut for the 911 Carrera RSR which had to run in the prototype class as the 500 required for homologation had not yet been completed.
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 911 Carrera RSR | 911 360 0328 R4 | S3.0 | Peter Gregg (USA)/Hurley Haywood (USA) | Brumos Porsche (USA) | 1st | 1st | 8th | 670 laps |
| 77 | Porsche 911 S | 230 1687 | GT+2.0 | George Stone (USA)/Bruce Jennings (USA)/Mike Downs (USA) | Silverstone Racing (USA) | 4th | 3rd | 32nd | 638 laps |
| 54 | Porsche 911 S | GT+2.0 | John Fitzpatrick (GB)/Erwin Kremer (D)/Paul Keller (CH) | Porsche Kremer Racing (D) | 6th | 5th | 23rd | 630 laps | |
| 15 | Porsche 911 S | GT+2.0 | Michael Keyser (USA)/Tony Adamowicz (USA)/Bob Beasley (USA) | Toad Hall Motor Racing (USA) | 8th | 6th | 26th | 587 laps | |
| 56 | Porsche 911 S | GT+2.0 | Sepp Greger (D)/Kurt Hild (D)/Dieter Schmid (D) | Joest Racing | 9th | 7th | 39th | 574 laps | |
| 62 | Porsche 911 S | 119 220 830 | GT2.0 | Bob Bergstrom (USA)/Jim Cook (USA) | Bob Bergstrom (USA) | 10th | 1st | 44th | 571 laps |
| 43 | Porsche 911 S | 911 230 0921 | GT+2.0 | Dave Helmick (USA)/John O'Steen (USA)/Stephen Behr (USA) | Dave Helmick (USA) | 11th | 8th | 31st | 558 laps |
| 19 | Porsche 908/02 | 908/02-017 | S3.0 | Rudy Bartling (CDN)/Klaus Bytzek (CDN)/Bert Kuehne (CDN) | Harry Bytzek (CDN) | 12th | 2nd | 5th | 532 laps |
| 51 | Porsche 911 S | GT+2.0 | Klaus Selbert (USA)/W. Marvin Schoenfeld (USA)/Bob Klempel (USA) | Airport Motorsport (USA) | 14th | 9th | 51st | 499 laps | |
| 38 | Porsche 914/6 | GT2.0 | Daniel Muniz (MEX)/Roberto Quintanilla (MEX) | Quintanilla/Muniz (MEX) | 19th | 53rd | 215 laps | ||
| 6 | Porsche 911 Carrera RSR | 911 360 0307 R3 | S3.0 | Mark Donohue (USA)/George Follmer (USA) | Penske Racing (USA) | DNF | 12th | 405 laps - Engine | |
| 31 | Porsche 911 | GT+2.0 | Jim Locke (USA)/Bob Bailey (USA) | Locke Development Corporation (USA) | DNF | 29th | 387 laps | ||
| 57 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I)/Paul Blancpain (USA) | Reinhold Jöst (D) | DNF | 47th | 244 laps - Gearbox | |
| 89 | Porsche 911 S | GT+2.0 | Mike Tillson (USA)/Al Holbert (USA)/Dieter Oest (USA) | Holbert Porsche (USA) | DNF | 42nd | 213 laps | ||
| 16 | Porsche 911 S | GT+2.0 | Peter Kirill (USA)/Russ Norburn (USA)/Bill Bean (USA) | Toad Hall Motor Racing (USA) | DNF | 41st | 175 laps | ||
| 88 | Porsche 910 | 910-022 | S2.0 | Edwin Abate (USA)/Bill Cuddy (USA) | Edwin G. Abate | DNF | 35th | 167 laps | |
| 58 | Porsche 911 S | 911 003 0043 | GT+2.0 | Andrew Carduner (USA)/Jacques Bienvenue (CDN) | Brumos Porsche (USA) | DNF | 37th | 127 laps | |
| 99 | Porsche 911 S | GT+2.0 | Horacio Alvarez (PR)/Diego Febles (PR) | Diego Febles | DNF | 45th | 65 laps |
World Championship for Makes Daytona 24 Hours
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