| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 99 | Rolf Stommelen (D)
Toine Hezemans (NL) Peter Gregg (USA) |
Porsche 935/77A 930 890 0011 | Brumos Porsche | 680 | 24:00:45,4 | 1. | GTX | 4. | 2:03,097 |
| 2. | 6 | Dick Barbour (USA)
Manfred Schurti (FL) Johnny Rutherford (USA) |
Porsche 935/77A 930 890 0033 | Dick Barbour Racing | 650 | 24:00:45,9 | 2. | GTX | 8. | 2:06,900 |
| 3. | 58 | Diego Febles (PR)
Alec Poole (GB) |
Porsche Carrera RSR | Diego Febles Racing | 645 | 1. | GTO | 21. | 2:07,235 | |
| 4. | 33 | Bonky Fernandez (PR)
John Paul (USA) Phil Currin (USA) |
Porsche Carrera RSR 911 460 9113 | Boricua Racing | 637 | 2. | GTO | 14. | 2:01,956 | |
| 5. | 14 | Josef Brambring (D)
Dieter Schornstein (D) "John Winter" (D) |
Porsche 935 K2 007 0004 | Kremer Porsche Racing | 635 | 3. | GTX | 10. | 2:13,972 | |
| NRF | 09 | Gary Belcher (USA)
Doc Bundy (USA) Al Holbert (USA) |
Porsche 934/5 930 670 0175? | Belcher Racing | 632 | Fuel pump | 4. | GTX | 12. | 1:56,828 |
| 7. | 32 | Steve Earle (USA)
Bob Akin (USA) Rick Knoop (USA) |
Porsche Carrera RSR 911 460 9048 | Earle & Akin Racing Associates | 632 | 5. | GTX | 18. | 2:05,491 | |
| 8. | 65 | John Morton (USA)
Tony Adamowicz (USA) Hal Sahlman (USA) Bobby Carradine (USA) |
Ferrari 365 GTB/4 16407 | Dan Ward Racing | 622 | 3. | GTO | 16. | 2:04,021 | |
| 9. | 59 | Peter Gregg (USA)
Claude Ballot-Léna (F) Brad Frisselle (USA) |
Porsche 935 930 770 0909 | JMS Brumos Porsche | 621 | 6. | GTX | 6. | 2:05,951 | |
| 10. | 13 | Hal Shaw, Jr. (USA)
Jim Busby (USA) Howard Meister (USA) |
Porsche 935 930 670 0180 | Hal Shaw Racing | 608 | 7. | GTX | 9. | 2:10,939 | |
| 11. | 01 | Dave White (USA)
Gary Mesnick (USA) J. Dana Roehrig (USA) |
Porsche 911 | J. Dana Roehrig | 604 | Engine | 1. | GTU | 26. | 2:07,839 |
| 12. | 34 | George Drolsom (USA)
Hugh Davenport (USA) Mark Greb (USA) |
Porsche 911S | Drolsom Racing | 592 | 2. | GTU | 57. | 2:18,426 | |
| 13. | 21 | Franz Konrad (A)
Reinhold Jöst (D) Volkert Merl (D) |
Porsche 935 930 670 0172 | Konrad Racing | 590 | 8. | GTX | 7. | 2:06,751 | |
| 14. | 08 | Terry Wolters (USA)
Jack Refenning (USA) Ray Mummery (USA) |
Porsche 911 911 030 1263 | Terry Wolters | 584 | 3. | GTU | 55. | 2:17,995 | |
| 15. | 24 | Tom Frank (USA)
Bob Bergstrom (USA) |
Porsche Carrera RSR 911 460 9056 | Executive Industries | 580 | 9. | GTX | 19. | 2:05,969 | |
| 16. | 84 | Chris Doyle (USA)
John Maffucci (USA) Bob Speakman (USA) |
Datsun 260Z | Bondurant Racing School | 577 | 4. | GTU | 56. | 2:18,414 | |
| 17. | 60 | John Thomas (USA)
Ren Tilton (USA) Rusty Bond (USA) |
Porsche 911 | R & R Racing | 551 | 5. | GTU | 34. | 2:09,410 | |
| 18. | 29 | Richard Weiss (USA)
Bill Alsup (USA) Bill Follmer (USA) |
Porsche 911S | Richard C. Weiss | 550 | 6. | GTU | 35. | 2:09,947 | |
| 19. | 37 | Bob Buchler (USA)
Eddie Johnson (USA) Clay Young (USA) |
Chevrolet Camaro | Clay Young | 550 | 10. | GTX | 45. | 2:15,515 | |
| NRF | 46 | Mauricio DeNarvaez (CO)
Albert Naon (USA) Tony Garcia (USA) |
Porsche Carrera RSR | Mauricio DeNarvaez | 547 | 4. | GTO | 36. | 2:10,725 | |
| 21. | 22 | Bill Harriss (USA)
Volker Bruckmann (USA) Ron Southern (USA) |
Porsche 911E | Music City Racing | 546 | 7. | GTU | 49. | 2:16,468 | |
| 22. | 5 | François Migault (F)
Lucien Guitteny (F) Gregg Young (USA) |
Ferrari 365 GT4/BB 18139 | Team Grand Competition on Canart | 521 | 11. | GTX | 17. | 2:04,329 | |
| 23. | 68 | Luis Mendez (DR)
Mandy Gonzalez (PR) Tato Ferrer (PR) |
Porsche Carrera RSR 005 0009 | Luis Mendez | 509 | 5. | GTO | 66. | 2:26,013 | |
| 24. | 91 | Bill Cooper (USA)
Steve Cook (USA) Bob Bondurant (USA) Ron Southern (USA) |
Datsun 260Z | Bob Bondurant | 508 | 8. | GTU | 65. | 2:25,662 | |
| 25. | 78 | Bobby Hillin (USA)
William Henderson (USA) Richard Turner (USA) |
Ferrari 365 GTB/4 13771 | Western Motor Works | 506 | 6. | GTO | 52. | 2:17,357 | |
| 26. | 9 | Brian Goellnicht (USA)
José Marina (USA) Jack May (USA) Anatoly Arutunoff (USA) |
Lancia Stratos | Anatoly Arutunoff | 505 | 9. | GTU | 53. | 2:17,492 | |
| NRF | 94 | Preston Henn (USA)
Hal Sahlman (USA) Sandy Satullo (USA) |
Ferrari 365 GTB/4 13367 | Preston Henn | 502 | Accident | 7. | GTO | 31. | 2:08,911 |
| 28. | 36 | Ron Case (USA)
Dave Panaccione (USA) |
Porsche 911 | Case Racing | 500 | 10. | GTU | 46. | 2:15,534 | |
| 29. | 53 | Jim Downing (USA)
Stu Fisher (USA) Walt Bohren (USA) Roger Mandeville (USA) |
Mazda RX-3 | Mazda Auto Tokyo | 498 | 11. | GTU | 42. | 2:14,599 | |
| 30. | 61 | Taku Akaike (J)
Al Cosentino (USA) |
Mazda RX-3 | Alfred Cosentino | 498 | 12. | GTU | 44. | 2:14,783 | |
| 31. | 38 | Bill McDill (USA)
Mike Meldeau (USA) |
Chevrolet Camaro | Mike Meldeau | 497 | 12. | GTX | 29. | 2:08,893 | |
| 32. | 10 | Guy Church (USA)
Rick Kump (USA) Bob Lee (USA) |
AMC AMX | Robert H. Lee | 481 | 8. | GTO | 62. | 2:23,999 | |
| 33. | 50 | Charles Kleinschmidt (USA)
Lee Culpepper (USA) |
MGB GT | Native Tan | 477 | 13. | GTU | 68. | 2:41,167 | |
| NC | 77 | Amos Johnson (USA)
Dennis Shaw (USA) Charles Woodward (USA) |
AMC Hornet AMX | Amos Johnson/Dennis Shaw | 475 | 9. | GTO | 41. | 2:14,409 | |
| DNF | 7 | Ludwig Heimrath (CDN)
Jacques Bienvenue (CDN) Norm Ridgely (CDN) |
Porsche 935 930 770 0958 | Heimrath Racing | 466 | Accident | 13. | GTX | 11. | 1:55,403 |
| DNF | 07 | Dave Cowart (USA)
Charles Mendez (USA) Joe Castellano (USA) |
Porsche Carrera RSR | Morrison's Inc. | 459 | 10. | GTO | 61. | no time | |
| DNF | 82 | Carm Solomone (USA)
Fred Lang (USA) Buzz Fyhrie (USA) |
Chevrolet Camaro | Solomone Racing | 456 | 14. | GTX | 24. | 2:07,497 | |
| DNF | 15 | Bruno Beilcke (USA)
Sepp Grinbold (USA) Alf Gebhardt (USA) |
BMW 3.0 CSL | Bavarian Motors International | 427 | 15. | GTX | 48. | 2:16,393 | |
| NC | 55 | Emiliano Rodriguez (USA)
Hiram Cruz (USA) |
Lotus Europa Ford | Emiliano Rodriguez | 402 | 14. | GTU | 58. | 2:18,883 | |
| DNF | 95 | Hurley Haywood (USA)
Bob Hagestad (USA) Doc Bundy (USA) |
Porsche 935 930 770 0957 | Bob Hagestad | 400 | Clutch | 16. | GTX | 60. | no time |
| NC | 18 | Dick Gauthier (USA)
Jack Swanson (USA) Brad West (USA) |
Chevrolet Camaro | Ours & Hours Racing | 395 | 17. | GTX | 50. | 2:16,674 | |
| NC | 56 | Richard Valentine (USA)
Craig Carter (USA) Murray Edwards (CDN) |
Chevrolet Camaro | Carter Brothers | 361 | 18. | GTX | 23. | 2:07,477 | |
| NC | 87 | Pedro Vazquez (USA)
Ron Oyler (USA) Joseph Hamilton (USA) Gunter Hamilton (USA) Gunter Seipolt (USA) |
Porsche 911 | Pedro Vazquez, Jr. | 360 | 15. | GTU | 67. | 2:58,980 | |
| NC | 02 | Dick Neland (USA)
Al Levenson (USA) Tom Brown (USA) |
Chevrolet Corvette | Al Levenson | 353 | 11. | GTO | 43. | 2:14,709 | |
| DNF | 52 | Yoshimi Katayama (J)
Yojiro Terada (J) Roger Mandeville (USA) |
Mazda RX-3 | Mazda Auto Tokyo | 271 | 16. | GTU | 28. | 2:08,779 | |
| DNF | 19 | Chris Cord (USA)
Jim Adams (USA) |
Chevrolet Monza DeKon 1011 | Chris Cord Racing | 261 | Engine | 19. | GTX | 13. | 1:59,100 |
| DNF | 73 | Clark Howey (USA)
Dale Koch (USA) David Crabtree (USA) |
Chevrolet Camaro | Clark Howey | 259 | 20. | GTX | 20. | 2:06,961 | |
| DNF | 76 | Frank Thomas (USA)
Lee Mueller (USA) Logan Blackburn (USA) |
Porsche 911 | Frank Thomas | 224 | 17. | GTU | 39. | 2:12,306 | |
| DNF | 72 | Carl Thompson (USA)
Billy Hagan (USA) Rusty Schmidt (USA) |
Chevrolet Corvette | Bill Arnold Racing | 169 | 21. | GTX | 22. | 2:07,271 | |
| DNF | 20 | Richard Bostyan (USA)
Jerry Thompson (USA) Don Yenko (USA) |
Chevrolet Corvette | Richard L. Bostyan | 152 | 12. | GTO | 15. | 2:03,360 | |
| DNF | 25 | Kenper Miller (USA)
Paul Miller (USA) Oscar Koveleski (USA)^ |
BMW 3.0 CSL | Kenper Miller | 125 | Engine | 13. | GTO | 64. | 2:25,439 |
| DNF | 05 | Stephen Bond (USA)
Dale Kreider (USA) Philip Dann (USA)^ |
Chevrolet Monza | Dale Kreider | 123 | Wheel | 22. | GTX | 51. | 2:17,172 |
| DNF | 8 | Felice Besenzoni (I)
Luciano Dal Ben (I) Byron Wever (USA) |
Ferrari 308 GTB | Jolly Club | 117 | Electrics | 14. | GTO | 33. | 2:09,180 |
| DNF | 48 | John Carusso (USA)
Emory Donaldson (USA) Luis Sereix (USA) |
Chevrolet Corvette | Autodyne Inc. | 90 | Suspension | 15. | GTO | 27. | 2:08,198 |
| DNF | 80 | Herb Adams (USA)
Pat Bedard (USA) Marv Thomson (USA) |
Oldsmobile Cutlass | Herb Adams | 89 | Gearbox | 16. | GTO | 30. | 2:08,911 |
| DNF | 0 | Danny Ongais (USA)
Ted Field (USA) Milt Minter (USA) |
Porsche 935 930 890 0019??? | Interscope Racing | 88 | Engine | 23. | GTX | 1. | 2:00,152 |
| DNF | 12 | Bob Wollek (F)
Henri Pescarolo (F) Didier Jaunet (F)^ |
Porsche 935/77A 930 890 0013 | Porsche Kremer Racing | 86 | Engine | 24. | GTX | 2. | 2:00,398 |
| DNF | 51 | John Hotchkis (USA)
Robert Kirby (USA) Dennis Aase (USA) |
Porsche 911 | Wynn's International | 85 | Engine | 18. | GTU | 63. | 2:24,850 |
| DNF | 4 | Dino Mallet (I)
Bob Bondurant (USA) Sergio Romolotti (I)^ Romeo Camathias (CH)^ Gene Hackman (USA)* |
Ferrari 308 GTB | Jolly Club | 82 | Transmission | 17. | GTO | 32. | 2:08,936 |
| DNF | 03 | Guido Levetto (USA)
Dan Rice (USA) |
Chevrolet Camaro | Guido Levetto | 79 | Suspension | 18. | GTO | 69. | no time |
| DNF | 54 | John Tunstall (USA)
Stephen Behr (USA) Lou Timolat (USA) Fred Snow (USA)* |
Porsche Carrera | T & C | 70 | Flywheel | 25. | GTX | 38. | 2:11,732 |
| DNF | 39 | Greg Pickett (USA)
Neil Bonnet (USA) Bruce Canepa (USA) |
Porsche Carrera | Greg Pickett | 67 | Ignition | 19. | GTO | 59. | 2:22,975 |
| DNF | 27 | Pierre Honegger (USA)
Bill Scott (USA) Mark Hutchins (USA) Bob Dean (USA)^ |
Mazda RX-3 | Z & W Enterprises | 57 | 19. | GTU | 54. | 2:17,649 | |
| DNF | 2 | David Hobbs (GB)
Ronnie Peterson (S) |
BMW 320i Turbo | McLaren North America | 47 | Engine | 26. | GTX | 3. | 2:00,578 |
| DNF | 17 | Sam Fillingham (USA)
Tim Chitwood (USA) K. P. Jones (USA)^ |
Chevrolet Nova | Tim Chitwood | 45 | Accident | 20. | GTO | 40. | 2:14,237 |
| DNF | 3 | Carlo Facetti (I)
Martino Finotto (I)^ |
Porsche 935 930 770 0902 | Jolly Club | 6 | Engine | 27. | GTX | 5. | 2:04,910 |
| DNF | 85 | John Hulen (USA)
Ron Coupland (USA)^ Nick Engels (USA)^ |
Porsche 914/6 | John Hulen | 0 | Engine at start | GTU | 47. | 2:16,363 | |
| DSQ | 71 | Francisco Romero (YV)
Ernesto Soto (YV) Hardie Beloff (USA) |
Porsche 911S | Bill Scott | 615 | Refused inspection (was 10th) | GTU | 37. | 2:11,711 | |
| DNS | 66 | Don Devendorf (USA)
Tony Adamowicz (USA) Jeff Kline (USA) Milt Minter (USA)* Michael Keyser (USA)* |
Ferrari 365 GTB/4 15965 | Bobby Carradine | GTX | 2:18,132 | ||||
| DNS | 86 | Janet Guthrie (USA)
Hugh Kleinpeter (USA) Jef Stevens (USA) |
De Tomaso Pantera GT4K | Hugh Kleinpeter | Engine | GTX | 25. | 2:07,815 | ||
| DNS | 88 | Joseph Hamilton (USA)
Chuck Wade (USA) Marty Hinze (USA) |
Porsche 911 | Hamilton House Racing | GTU | 2:37,662 | ||||
| DNA | 11 | Rob Hoskins (USA)
Jeffrey Brooks (USA) Van McDonald (USA) |
Triumph TR7 | Robert Hoskins | GTU | |||||
| DNA | 26 | Ernie Smith (USA)
Gene Budd (USA) |
Alfa Romeo Sprint Veloce | Eleven-Tenths Racing | GTU | |||||
| DNA | 41 | Ted Schumacher (USA)
Robert Hubbard (USA) John Kelly (USA) |
Triumph GT6 | Ted Schumacher | GTX | |||||
| DNA | 42 | William Harris (USA)
Ted Kempgens (USA) Greg Donohue (USA) |
Ford Pinto | William Harris | GTX | |||||
| DNA | 43 | Don Pike (USA)
Byron Wever (USA) Allan Bodoh (USA) |
Porsche Carrera | Allan F. Bodoh | GTX | |||||
| DNA | 45 | Gary Steele (USA)
Bob Zulkowski (USA) James Gaeta (USA) |
Porsche Carrera | Vann's Auto Body | GTX | |||||
| DNA | 47 | Robert LaMay (USA)
Mike Powell (USA) Eric Orberg (USA) |
Ford Mustang | Robert V. LaMay | GTX | |||||
| DNA | 63 | Charles Pelz (USA)
Wiley Doran (USA) David L. Cunningham (USA) |
Chevrolet Camaro | Charles F. Pelz | GTX | |||||
| DNA | 70 | M. L. Speer (USA)
Windle Turley (USA) Bobby Hillin (USA) Steve Anderson (USA) |
Porsche 911S | Race Car | GTU | |||||
| DNA | 75 | Paul May (USA)
Logan Blackburn (USA) Ken McNicol (USA) |
Datsun 510 | Paul B. May | GTU | |||||
| DNA | 89 | Turner Woodard (USA)
Don Parish (USA) Dave Causey (USA) |
Porsche Carrera | Barrick Motor Racing | GTO |
| Winning Time: 24h00m45.4, 108.743 mph/175.004 kph |
| Fastest Lap: Rolf Stommelen #99 (Porsche 935), 1m51.845, 123.600 mph/198.914 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) |