| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 94 | Don Whittington (USA)
Klaus Ludwig (D) Bill Whittington (USA) |
Porsche 935 K3 009 00015 | Whittington Brothers | 175 | 6:00:09,97 | 1. | Gr.5 | 2. | 1:50,763 |
| 2. | 70 | Rolf Stommelen (D)
Dick Barbour (USA) Paul Newman (USA) |
Porsche 935 009 00030 | Dick Barbour Racing | 171 | 2. | Gr.5 | 1. | 1:50,354 | |
| 3. | 71 | Rob McFarlin (USA)
Roy Woods (USA) Bob Akin (USA) |
Porsche 935 009 00016 | Dick Barbour Racing | 170 | - | 9. | 1:57,380 | ||
| 4. | 20 | Elliot Forbes-Robinson (USA)
Randolph Townsend (USA) Brett Lunger (USA) Howard Meister (USA)* |
Porsche 935 930 770 0905 | Andial | 169 | 3. | Gr.5 | 4. | 1:53,279 | |
| NRF | 6 | Charles Mendez (USA)
Paul Miller (USA) |
Porsche 935 930 770 0957 | Busch Beer Racing | 167 | Lost wheel | 4. | Gr.5 | 10. | 1:57,654 |
| 6. | 18 | John Paul (USA)
Al Holbert (USA) |
Porsche 935 JLP-1 JLP-1 | JLP Racing | 167 | - | 7. | 1:54,418 | ||
| 7. | 44 | Bob Tullius (USA)
Brian Fuerstenau (USA) |
Triumph TR8 | Group 44 Inc. | 162 | 1. | GT | 20. | 2:06,159 | |
| 8. | 95 | Bill Whittington (USA)
Brian Redman (GB) Johnny Rutherford (USA) Don Whittington (USA)* |
Porsche 935/79 | Whittington Brothers | 161 | - | 8. | 1:56,651 | ||
| 9. | 72 | Skeeter McKitterick (USA)
Buzz Marcus (USA) Bob Garretson (USA) |
Porsche 935 930 770 0910 | Dick Barbour Racing | 161 | - | 16. | 2:00,684 | ||
| 10. | 5 | Kenper Miller (USA)
Dave Cowart (USA) |
BMW 3.5 CSL | KWM Racing | 161 | 5. | Gr.5 | 18. | 2:02,613 | |
| 11. | 38 | Bonky Fernandez (PR)
Tato Ferrer (PR) |
Porsche Carrera RSR | Boricua Racing | 160 | - | 24. | 2:07,936 | ||
| 12. | 97 | Roger Schramm (USA)
Werner Frank (USA) |
Porsche Carrera RSR 911 460 0075?? | Framm Promotions | 158 | - | 25. | 2:09,099 | ||
| 13. | 66 | Tuck Thomas (USA)
Norm Ridgely (CDN) Robert Kirby (USA) |
Porsche 935 930 770 0959 | Stanton/Barbour | 155 | - | 19. | 2:02,777 | ||
| 14. | 92 | Sam Feinstein (USA)
Michael Oleyar (USA) Nick Engels (USA) John Orr (USA)* Kenper Miller (USA)* |
Chevrolet Corvette 454 | E. F. Miller Co. | 149 | - | 44. | no time | ||
| 15. | 43 | Frank Joyce (USA)
Tom Frank (USA) |
Chevrolet Corvette | Phantom Racing | 144 | - | 23. | 2:07,370 | ||
| 16. | 21 | John Wood (USA)
Mario Gomez (MEX) Carl Shafer (USA) Daniel Muniz (MEX)* |
Chevrolet Camaro | Oftedahl Racing | 144 | - | 40. | 2:16,907 | ||
| 17. | 10 | John Huber (USA)
Daniel Muniz (MEX) Miguel Muniz (MEX) Mario Gomez (MEX)* |
Chevrolet Camaro | Gordon Oftedahl | 142 | - | 26. | 2:09,112 | ||
| 18. | 77 | Bruce Jennings (USA)
Bob Beasley (USA) Bill Bean (USA) |
Porsche 911S | Bruce Jennings | 142 | - | 41. | no time | ||
| 19. | 29 | Hoyt Overbagh (USA)
Billy Hagan (USA) |
Chevrolet Monza 355 | Stratagraph | 140 | - | 39. | 2:18,301 | ||
| 20. | 16 | Neil Kassel (USA)
Tom Roberts (USA) |
Chevrolet Camaro 350 | Neil Kassel | 136 | - | 36. | 2:15,739 | ||
| 21. | 25 | William Maier (USA)
Art Siri, Jr. (USA) Ed Hinchcliff (USA) |
Ford Mustang | William Maier | 126 | - | 38. | 2:16,604 | ||
| NC | 90 | Thomas Rynone (USA)
Neil Wiernicki (USA) Michael Wiernicki (USA) |
Chevrolet Corvette 427 | Tom Rynone | 121 | - | 21. | 2:06,522 | ||
| DNF | 13 | Hal Shaw, Jr. (USA)
Gary Belcher (USA) |
Porsche 935 930 670 0180 | Hal Shaw Racing | 120 | Pit fire | - | 17. | 2:01,558 | |
| DNF | 7 | Ludwig Heimrath (CDN)
Carlos Moran (ES) |
Porsche 935 930 770 0958 | Ludwig Heimrath | 117 | Engine | Gr.5 | 11. | 1:57,806 | |
| DNF | 80 | Maurice Carter (CDN)
Tony DeLorenzo (USA) |
Chevrolet Camaro | Maurice Carter | 115 | Off course | - | 14. | 1:59,726 | |
| DNF | 47 | Jon McKnight (USA)
Doug Lutz (USA) |
Porsche Carrera | Doug Lutz | 111 | Ignition | - | 27. | 2:10,352 | |
| NC | 37 | Paul Schulte (USA)
John Cleveland (USA) Rex Franklin (USA)* |
Chevrolet Corvette 350 | Neil Kassel | 105 | - | 35. | 2:15,289 | ||
| NC | 52 | Robert Schuler (USA)
David Schuler (USA) |
Datsun 280Z | Fred Schuler | 98 | - | 32. | 2:13,719 | ||
| DNF | 3 | Jim Busby (USA)
Manfred Winkelhock (D) David Hobbs (GB)^ |
BMW M1 | BMW North America | 96 | Off course | Special | 13. | 1:59,618 | |
| DNF | 55 | Alan Howes (USA)
David Sturtevant (USA) |
Porsche Carrera | Intrepid Design | 78 | Oil pressure | - | 42. | no time | |
| DNF | 85 | Peter Gregg (USA)
Hurley Haywood (USA) Bruce Leven (USA) |
Porsche 935 770 0909 or 890 0018 | Bayside Disposal Racing | 72 | Engine | - | 3. | 1:52,657 | |
| DNF | 0 | Ted Field (USA)
Danny Ongais (USA) |
Porsche 935/79 930 990 0029 | Interscope Racing | 48 | Accident | Gr.5 | 6. | 1:54,019 | |
| DNF | 23 | Bob Zulkowski (USA)
Bernie Storc (USA) Gary Carlen (USA)* |
Porsche 914/6 | Metalcraft Racing | 48 | Unknown | - | 33. | 2:14,599 | |
| DNF | 30 | Bob Fryer (USA)
Ed Lowther (USA) Martin Shook (USA)* |
AMC Javelin | University of Pittsburgh | 48 | Off course | - | 30. | 2:12,596 | |
| DNF | 57 | Neil Shelton (USA)
Monte Shelton (USA) |
Porsche 935 930 770 0951 | Monte Shelton | 46 | Accident | - | 15. | 2:00,038 | |
| DNF | 64 | Bob Baechle (USA)
Craig Carter (USA)^ |
Chevrolet Corvette 427 | Endurance Racing Enterprises | 25 | Overheating | - | 43. | no time | |
| DNF | 65 | Al Salerno (USA)
Bob Lapane (USA)^ |
Chevrolet Corvette 454 | Alan Salerno | 25 | Oil leak | - | 31. | 2:13,506 | |
| DNF | 93 | Michael Oleyar (USA)
Nick Engels (USA)^ |
Chevrolet Corvette 454 Greenwood 011 | E. F. Miller Co. | 18 | Off course | - | 34. | 2:14,892 | |
| DNF | 51 | Tom Aquilante (USA)
David Wolpert (USA)^ Wade White (USA)^ |
Chevrolet Corvette 350 | Thomas Aquilante | 15 | Engine | - | 37. | 2:16,210 | |
| DNF | 11 | Daniel Muniz (MEX)
Carl Shafer (USA)^ John G. Huber (USA)* |
Chevrolet Camaro | Oftedahl Racing | 11 | Flame bottom of car | - | 22. | 2:07,354 | |
| DNF | 19 | Chris Cord (USA)
Jim Adams (USA)^ |
Chevrolet Monza 350 DeKon 1011 | Chris Cord | 10 | Accident | - | 12. | 1:58,434 | |
| DNF | 09 | Rick Mears (USA)
Preston Henn (USA)^ Peter Gregg (USA)^ |
Porsche 935/77A 930 890 0021 or 0015 | Preston Henn | 7 | Fire | Gr.5 | 5. | 1:53,677 | |
| DNF | 15 | James Mancuso (USA)
David Kicak (USA)^ |
Chevrolet Corvette 355 | James Mancuso | 3 | Off course | - | 29. | 2:11,675 | |
| DNS | 98 | Larry Green (USA)
John Bauer (USA) |
Porsche Carrera RSR | Green/Bauer | - | 28. | 2:12,596 | |||
| DNS | 00T | Danny Ongais (USA)
Ted Field (USA) |
Porsche 935/77A 930 890 0019 | Interscope Racing | Gr.5 | no time | ||||
| DNA | 35 | Jacques Bienvenue (CDN)
Marc Dancose (CDN) Jacques Duval (CDN) |
Porsche Carrera | Jacques Bienvenue | GT | |||||
| DNA | 42 | Milt Minter (USA)
Bill Scott (USA) |
Volkswagen Rabbit | Bill Scott | T | |||||
| DNA | 60 | John Brandt (USA)
John Wood (USA) |
Chevrolet Corvette | John J. Brandt, Jr. | - | |||||
| DNA | 61 | Al Cosentino (USA)
Craig Fisher (CDN) |
Mazda RX-3 | Alfred Cosentino | T | |||||
| DNA | 73 | Robert Kirby (USA)
John Hotchkis (USA) |
Porsche 935 | Stanton/Barbour | Gr.5 | |||||
| DNA | 74 | David Jones (USA)
Ted Sullivan (USA) |
Chevrolet Camaro | Chet's Speed Shop | - | |||||
| DNA | 81 | Al Speyer (USA)
Pat Farrell (USA) |
Datsun 510 | Al Speyer | - | |||||
| DNA | 83 | Joseph Hamilton (USA)
Robert Overby (USA) |
Porsche 911 | Hamilton House Racing | - | |||||
| DNA | 91 | Fred Werl (USA)
Jimmy Spencer (USA) John Vecchi (USA) |
Ford Mustang | HDJ | - |
| Winning Time: 6h00m09.97, 98.450 mph/158.440 kph |
| Fastest Lap: Rolf Stommelen #70 (Porsche 935), 1m54.763, 105.933 mph/170.482 kph |
| * Driver entered for car, but never drove it at meeting |
| ^ Driver practiced car, but did not race it |
| RES - Reserve (Practiced, on standy-by for start) |
| REE - Reserve Entry |
| DNA - Did Not Arrive |
| DNS - Did Not Start |
| DNF - Did Not Finish |
| DNP - Did Not Practice |
| NC - Not Classified |
| DSQ - Disqualified |
| NRF - Not Running At Finish |
| NAC - Not Accepted |
| REJ - Rejected (Did not pass scrutineering) |