| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 30 | Toine Hezemans (NL)
John Fitzpatrick (GB) Peter Gregg (USA) |
Porsche 935/77A 930 890 0011 | GeLo Racing | 146 | 6:01:54,999 | 1. | Gr.5 | 2. | 1:54,437 |
| 2. | 90 | Rolf Stommelen (D)
Manfred Schurti (FL) Dick Barbour (USA) |
Porsche 935/77A 930 890 0024 | Dick Barbour Performance | 146 | 6:02:25,132 | 2. | Gr.5 | 1. | 1:53,611 |
| 3. | 10 | Hans-Joachim Stuck (D)
Dieter Quester (A) Harald Grohs (D)* |
BMW 320i | BMW Faltz Essen | 138 | 3. | Gr.5 | 13. | 2:01,904 | |
| 4. | 13 | Hal Shaw, Jr. (USA)
Monte Shelton (USA) |
Porsche 935 930 670 0180 | Hal Shaw Racing | 136 | 4. | Gr.5 | 8. | 1:58,289 | |
| 5. | 19 | Chris Cord (USA)
Jim Adams (USA) |
Chevrolet Monza 350 DeKon 1011 | Chris Cord Racing | 132 | - | 10. | 1:58,651 | ||
| 6. | 71 | John Thomas (USA)
Otis Chandler (USA) |
Porsche 935 930 770 0910 | Otis Chandler | 132 | 5. | Gr.5 | 15. | 2:02,203 | |
| 7. | 44 | Brian Fuerstenau (USA)
Bob Tullius (USA) |
Jaguar XJS | Group 44 | 130 | - | 20. | 2:06,817 | ||
| 8. | 3 | Janet Guthrie (USA)
Brian Redman (GB) Hurley Haywood (USA) George Follmer (USA)^ |
Porsche 935 930 770 0955 | Vasek Polak Racing | 128 | 6. | Gr.5 | 7. | 1:57,057 | |
| 9. | 97 | Werner Frank (USA)
Roger Schramm (USA) |
Porsche Carrera RSR | Framm Promotions | 127 | - | 28. | 2:11,916 | ||
| 10. | 32 | Steve Griswold (USA)
Bob Akin (USA) |
Porsche Carrera RSR 911 460 9048 | Earle & Akin Racing Assoc. | 125 | 7. | Gr.5 | 27. | 2:11,708 | |
| 11. | 25 | François Migault (F)
Lucien Guitteny (F) |
Ferrari 365 GT4/BB 18139 | Grand Competition Cars, Inc. | 124 | - | 30. | 2:12,231 | ||
| 12. | 29 | Hoyt Overbagh (USA)
Billy Hagan (USA) |
Chevrolet Monza 350 | Billy J. Hagan | 122 | 1. | GT | 38. | 2:18,603 | |
| 13. | 77 | Bruce Jennings (USA)
John O'Steen (USA) |
Porsche 911S | Bruce Jennings | 122 | - | 40. | 2:21,487 | ||
| 14. | 9 | John Huber (USA)
Babe Headley (USA) |
Chevrolet Corvette 427 | Apple Valley Racing | 120 | - | 23. | 2:08,955 | ||
| 15. | 7 | Ludwig Heimrath (CDN)
Paul Miller (USA) |
Porsche 935 930 770 0958 | Heimrath Racing | 119 | 8. | Gr.5 | 12. | 2:00,147 | |
| 16. | 79 | Michael Callas (USA)
Peter Papke (USA) |
Porsche Carrera RSR | Rennsport Porsche Works | 118 | 9. | Gr.5 | 29. | 2:11,945 | |
| 17. | 43 | Frank Joyce (USA)
Gene Bothello (USA) |
Chevrolet Corvette 427 | Phantom Racing | 118 | - | 26. | 2:10,519 | ||
| 18. | 17 | Angelo Pallavicini (CH)
Enzo Calderari (CH) |
Porsche 934 930 670 0162 | Pallvano Corse | 110 | 2. | GT | 33. | 2:15,399 | |
| 19. | 91 | Tom Roberts (USA)
Paul Schulte (USA) |
Chevrolet Corvette 350 | Tom's Mechanical Emporium | 108 | - | 34. | 2:17,562 | ||
| NC | 98 | Thomas Rynone (USA)
Michael Oleyar (USA) |
Chevrolet Corvette 427 | Rynone Industries | 101 | - | 25. | 2:09,490 | ||
| NC | 16 | Neil Kassel (USA)
Rex Franklin (USA) |
Chevrolet Camaro 302 | Kassel Auto Parts of Syracuse | 100 | - | 45. | 2:39,214 | ||
| DNF | 94 | Bill Whittington (USA)
Don Whittington (USA) |
Porsche 935/77A | Whittington Borthers | 98 | Radiator | 10. | Gr.5 | 9. | 1:58,605 |
| DNF | 60 | John Brandt (USA)
Chuck Callas (USA) |
Chevrolet Corvette 350 | John J. Brandt | 98 | Oil leak | - | 32. | 2:14,347 | |
| DNF | 6 | Greg Pickett (USA)
Tom Gloy (USA) |
Chevrolet Corvette 427 | Pickett Racing | 96 | - | 11. | 1:58,846 | ||
| DNF | 0 | Danny Ongais (USA)
Ted Field (USA) |
Porsche 935/77A | Interscope Racing | 95 | Transmission | 11. | Gr.5 | 3. | 1:54,682 |
| DNF | 1 | George Follmer (USA)
Jacky Ickx (B) Brian Redman (GB)* |
Porsche 935 930 770 0913 | Vasek Polak Racing | 92 | Engine | 12. | Gr.5 | 4. | 1:54,862 |
| NC | 11 | Dave Heinz (USA)
Elliot Forbes-Robinson (USA) David McClain (USA)* |
Chevrolet Monza 350 DeKon 1014 | Budweiser Racing Team | 91 | - | 16. | 2:03,330 | ||
| DNF | 24 | Tom Frank (USA)
Bruce Leven (USA) |
Porsche Carrera RSR 911 460 9056 | Executive Industries | 85 | Accident | - | 21. | 2:07,535 | |
| NC | 51 | Tom Aquilante (USA)
Dave White (USA) Wade White (USA)^ David Wolpert (USA)^ |
Chevrolet Corvette 350 | Thomas Aquilante | 78 | - | 39. | 2:19,282 | ||
| DNF | 22 | Jeffrey Stephens (USA)
Bob Bergstrom (USA)^ |
Porsche Carrera RSR | Jeffrey Stephens | 76 | Electrical | - | 41. | 2:22,164 | |
| DNF | 20 | Harald Grohs (D)
Markus Höttinger (A) |
BMW 320i | BMW Faltz Essen | 76 | Stopped on course | 13. | Gr.5 | 14. | 2:02,049 |
| DNF | 92 | John Orr (USA)
Bill Jobe (USA) Kenper Miller (USA)^ |
Chevrolet Corvette 454 | E. F. Miller & Co. and Sherill ARCO | 76 | Fuel pressure | - | 46. | 2:47,857 | |
| DNF | 4 | Hurley Haywood (USA)
John Gunn (USA) Janet Guthrie (USA)^ George Follmer (USA)^ Jacky Ickx (B)^ Brian Redman (GB)* |
Porsche 935 | Vasek Polak Racing | 72 | Oil leak | 14. | Gr.5 | 17. | 2:04,694 |
| DNF | 88 | Joseph Hamilton (USA)
Ron Collins (USA) Chuck Wade (USA) |
Porsche 911S | Hamilton House Racing | 72 | Accident | - | 36. | 2:17,945 | |
| DNF | 53 | Robert Schuler (USA)
David Schuler (USA) |
Datsun 280Z | Fred Schuler | 70 | Engine | - | 44. | 2:32,936 | |
| DNF | 18 | David Kicak (USA)
Bob Young (USA) |
Chevrolet Corvette 360 | Free Spirit Racing | 38 | Engine | - | 42. | 2:24,723 | |
| DNF | 80 | Nick Engels (USA)
Bob Nagel (USA)^ |
Chevrolet Corvette 454 | Nagel Racing Enterprises | 36 | Broken left rear axle | - | 22. | 2:07,975 | |
| DNF | 64 | Craig Carter (USA)
Bob Baechle (USA) |
Chevrolet Corvette 427 | Endurance Racing Enterprises, Inc./Auto Parts | 30 | Broken drive train | - | 35. | 2:17,602 | |
| DNF | 74 | Bill Scott (USA)
Pierre Honegger (USA)^ David Weir (USA)^ |
Porsche 911S | Z & W Enterprises | 18 | Accident | 3. | GT | 37. | 2:18,365 |
| DNF | 82 | Carm Solomone (USA)
Fred Lang (USA)^ |
Chevrolet Camaro Turbo 302 | Solomone Racing | 11 | Engine | - | 43. | 2:27,478 | |
| DNF | 12 | Ronnie Peterson (S)
David Hobbs (GB)^ |
BMW 320i Turbo | McLaren North America | 10 | Off course | 15. | Gr.5 | 47. | no time |
| DNF | 81 | John Morton (USA)
Pat Bedard (USA)^ Gene Felton (USA)* |
Pontiac Firebird Trans-Am | Adams Associates | 8 | Engine | - | 24. | 2:09,357 | |
| DNF | 62 | Tuck Thomas (USA)
Robert Johnson (USA)^ |
Porsche Carrera RSR | Lancer | 2 | Mechanical | - | 31. | 2:12,281 | |
| DNF | 2 | David Hobbs (GB)
Ronnie Peterson (S)^ Brain Redman (GB)* |
BMW 320i Turbo | McLaren North America | 1 | Engine | 16. | Gr.5 | 5. | 1:55,057 |
| DNS | 08 | Hurley Haywood (USA)
John Paul (USA) |
Porsche 935/77A | JLP Racing | Engine in warm-up | 17. | Gr.5 | 6. | 1:55,341 | |
| DNS | 57 | Robert Frostrom (USA)
John Wood (USA) |
Porsche Carrera RSR | Robert Frostrom Racing | - | 18. | 2:06,002 | |||
| DNS | 75 | Norm Ridgely (CDN)
Jim Cook (USA) |
Porsche Carrera RSR | Norman Ridgely | - | 19. | 2:06,686 | |||
| DNQ | 52 | Dan Slodowick (USA)
Cliff McCandless (USA) |
Porsche 914/6 | McCandless Automotive | - | 2:30,104 | ||||
| DNQ | 15 | James Mancuso (USA)
William Coykendall (USA) |
Chevrolet Greenwood Corvette 355 | Motion Marketing | - | 2:32,609 | ||||
| DNQ | 69 | Thomas Fiscus (USA)
Jerry Lancaster (USA) |
Chevrolet Corvette 350 | Old Gold Racing | - | 2:37,882 | ||||
| DNQ | 41 | Anatoly Arutunoff (USA)
José Marina (USA) |
Lancia Stratos | Automotive International | - | 2:39,674 | ||||
| DNA | 93 | Porsche 934/5 | Whittington Borthers | Gr.5 | ||||||
| DNA | 00 | Danny Ongais (USA)
Ted Field (USA) |
Porsche 935 | Interscope Racing | Gr.5 | |||||
| DNA | 5 | Bill Adam (CDN) | Chevrolet Corvette 427 | D. B. Racing | - | |||||
| DNA | 12 | Roy Woods (USA)
Jimmy Insolo (USA) |
Chevrolet Monza Turbo 350 DeKon 1006 | Roy Woods Racing | - | |||||
| DNA | 23 | John Orr (USA)
Bill Jobe (USA) Kenper Miller (USA) |
Chevrolet Corvette 350 | E. F. Miller & Co. and Sherill ARCO | - | |||||
| DNA | 28 | Milt Minter (USA)
Clif Kearns (USA) |
Porsche 935 930 770 0960 | Desperado Racing | - | |||||
| DNA | 39 | Klaus Bytzek (CDN)
Rudy Bartling (CDN) |
Porsche Carrera RSR | Bytzek Automotive | - | |||||
| DNA | 50 | Jacques Bienvenue (CDN)
Marcel Talbot (CDN) |
Porsche 911 | Jacques Bienvenue | - | |||||
| DNA | 61 | Al Cosentino (USA)
Craig Fisher (CDN) |
Mazda RX-3 | Faza Squadra | - | |||||
| DNA | 66 | Joe Sheeckel (USA) | Chevrolet Corvette | All West Side Racing | - | |||||
| DNA | 70 | Gene Rutherford (USA)
Tom Wallace (USA) |
Oldsmobile Cutlass | Chesrown Oldsmobile | - | |||||
| DNA | 99 | Phil Currin (USA)
Cliff Gottlob (USA) |
Chevrolet Corvette 350 | The Tune-Up Shop | - |
| Winning Time: 6h01m51.99, 81.750 mph/131.563 kph |
| Fastest Lap: John Fitzpatrick #30 (Porsche 935-77A), 1m54.7, 105.991 mph/170.576 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) |