| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 43 | Hurley Haywood (USA)
John Graves (USA) Dave Helmick (USA) |
Porsche Carrera RSR 911 560 9112 | Ecurie Escargot | 681 | 24:02:06,174 | 1. | GTO | 12. | 2:01,499 |
| 2. | 3 | Carlo Facetti (I)
Martino Finotto (I) Romeo Camathias (CH) |
Porsche 935 930 770 0902 | Jolly Club | 679 | 24:03:51,257 | Gr.5 | 5. | 1:55,047 | |
| 3. | 8 | Reinhold Jöst (D)
Bob Wollek (F) Albrecht Krebs (D) |
Porsche 935 930 770 0903 | Porsche Kremer Racing | 670 | Gr.5 | 2. | 1:49,099 | ||
| 4. | 30 | George Dyer (USA)
Brad Frisselle (USA) |
Porsche Carrera RSR 911 460 9048 | George Dyer Racing | 663 | 2. | GTO | 21. | 2:04,410 | |
| 5. | 64 | Elliot Forbes-Robinson (USA)
Paul Newman (USA) Milt Minter (USA) |
Ferrari 365 GTB/4 14437 | Ramsey Ferrari/Modena Sports Cars | 631 | 3. | GTO | 22. | 2:05,059 | |
| 6. | 48 | Luis Sereix (USA)
John Carusso (USA) Emory Donaldson (USA) Lyn St James (USA)* Mike Williamson (USA)* Sam Fillingham (USA)* |
Chevrolet Corvette | Autodyne | 628 | 4. | GTO | 34. | 2:12,359 | |
| 7. | 42 | Bob Hindson (USA)
Frank Carney (USA) Dick Davenport (USA) |
Porsche 911S | Bob Hindson | 624 | 1. | GTU | 31. | 2:11,208 | |
| 8. | 28 | Richard Weiss (USA)
Bill Alsup (USA) Raymond Gage (USA) Jim Westphal (USA)* |
Porsche 911S | Richard Weiss | 596 | 2. | GTU | 41. | 2:19,223 | |
| 9. | 07 | Charles Mendez (USA)
Dave Cowart (USA) Dave Panaccione (USA) |
Porsche 911T | Charles Mendez | 591 | 3. | GTU | 37. | 2:13,918 | |
| 10. | 61 | Peter Gregg (USA)
Jim Busby (USA) |
Porsche 934 930 670 0175 | Brumos Racing | 590 | 5. | GTO | 7. | 1:56,894 | |
| 11. | 60 | Rusty Bond (USA)
Ren Tilton (USA) John Thomas (USA) |
Porsche 911S | Bond/Tilson | 586 | 4. | GTU | 36. | 2:13,900 | |
| 12. | 27 | Ray Mummery (USA)
Jack Refenning (USA) Ralph Noseda (USA) |
Porsche 911S | Jack Refenning | 581 | 5. | GTU | 51. | no time | |
| 13. | 58 | Diego Febles (PR)
Mandy Gonzalez (PR) Hiram Cruz (USA) |
Porsche Carrera RSR 911 460 9054 | Diego Febles Racing | 537 | 6. | GTO | 18. | 2:03,010 | |
| 14. | 73 | Clark Howey (USA)
David Crabtree (USA) Dale Koch (USA) |
Chevrolet Corvette | Clark Howey | 515 | 7. | GTO | 49. | no time | |
| 15. | 71 | John Higgins (USA)
Chip Mead (USA) Dave White (USA) Salt Walther (USA)* |
Porsche 911 | Foreign Exchange | 508 | 6. | GTU | 40. | 2:18,041 | |
| 16. | 6 | Amos Johnson (USA)
Dennis Shaw (USA) Steve Anderson (USA) |
AMC Gremlin | Amos Johnson | 506 | 8. | GTO | 50. | no time | |
| 17. | 18 | Jack Swanson (USA)
Terry Wolters (USA) |
Chevrolet Camaro | Terry Wolters | 484 | 9. | GTO | 45. | 2:22,582 | |
| NC | 02 | Al Levenson (USA)
Dan Rice (USA) Guido Levetto (USA) |
Chevrolet Corvette | Al Levenson | 475 | 10. | GTO | 44. | 2:22,579 | |
| NC | 77 | Burt Greenwood (USA)
Rick Mancuso (USA) John Cargill (USA) Dave Heinz (USA) John Greenwood (USA)* |
Chevrolet Corvette Greenwood 007 | Rick Mancuso | 470 | 11. | GTO | 23. | 2:05,769 | |
| NC | 10 | M. L. Speer (USA)
Windle Turley (USA) Hal Sahlman (USA) |
Porsche 911S | Race Car | 464 | 7. | GTU | 33. | 2:12,294 | |
| DNF | 1 | Jacky Ickx (B)
Jochen Mass (D) Jürgen Barth (D)^ |
Porsche 935 002 | Martini Racing | 452 | Puncture, accident | Gr.5 | 1. | 1:48,289 | |
| NC | 33 | Ara Dube (USA)
Harro Zitza (USA) Joe Castellano (USA) |
Porsche 911 | Ara Dube | 441 | 8. | GTU | 46. | 2:23,033 | |
| NC | 50 | Tom Waugh (USA)
John Rulon-Miller (USA) Bob Punch (USA) |
AMC Hornet | Tom Waugh | 394 | 12. | GTO | 52. | no time | |
| NC | 72 | Bill Arnold (USA)
Carl Thompson (USA) Billy Hagan (USA) |
Chevrolet Corvette | Bill Arnold Racing | 378 | 13. | GTO | 25. | 2:07,579 | |
| DNF | 34 | George Drolsom (USA)
Bill Scott (USA) Tom Bagley (USA) |
Porsche 911S | George Drolsom | 377 | 9. | GTU | 43. | 2:21,818 | |
| DNF | 47 | John Fitzpatrick (GB)
Kenper Miller (USA) Paul Miller (USA) |
BMW 3.5 CSL | BMW North America | 368 | Engine | 14. | GTO | 9. | 1:58,042 |
| NC | 13 | Bob Fryer (USA)
Richard Bostyan (USA) Ed Lowther (USA) Don Yenko (USA)* |
AMC Javelin | University of Pittsburgh | 366 | 15. | GTO | 53. | no time | |
| DNF | 9 | Klaus Bytzek (CDN)
Harry Bytzek (CDN) Rudy Bartling (CDN) |
Porsche Carrera RSR | Bytzek Brothers | 343 | 16. | GTO | 26. | 2:08,682 | |
| DNF | 20 | Jean Rondeau (F)
Jean-Pierre Beltoise (F) Al Holbert (USA)^ |
Inaltera Ford | Inaltera | 336 | Suspension | 1. | Sports | 3. | 1:52,720 |
| DNF | 05 | Jim Trueman (USA)
Jerry Thompson (USA) Don Yenko (USA) |
Chevrolet Monza Trueman | Red Roof Inns | 300 | 17. | GTO | 10. | 1:59,728 | |
| DNF | 66 | Tony Adamowicz (USA)
John Cannon (CDN) Dick Barbour (USA) |
Ferrari 365 GTB/4 15685 | Ramsey Ferrari/Modena Sports Cars | 286 | 18. | GTO | 29. | 2:10,306 | |
| DNF | 96 | Gene Felton (USA)
Buzz Cason (USA) James Reeve (USA) |
Chevrolet Camaro | Clay Young | 251 | 19. | GTO | 14. | 2:02,487 | |
| DNF | 70 | Adrian Gang (USA)
W. K. Gonzalez (USA) Tim Duke (USA) Peter Papke (USA)^ John Rulon-Miller (USA)* Michael Callas (USA)* |
Porsche Carrera RSR | Michael Callas | 247 | 20. | GTO | 30. | 2:10,715 | |
| DNF | 14 | Al Holbert (USA)
Michael Keyser (USA) Claude Ballot-Léna (F) |
Chevrolet Monza DeKon 1014 | Holbert Racing | 246 | Head gasket | 21. | GTO | 8. | 1:57,417 |
| DNF | 38 | John Paul (USA)
John O'Steen (USA) Bob Hagestad (USA) |
Porsche Carrera RSR 911 460 9113 | John Paul | 217 | 22. | GTO | 35. | 2:12,456 | |
| DNF | 46 | Mauricio DeNarvaez (CO)
Albert Naon (USA) John Freyre (USA) |
Porsche Carrera RSR | Mauricio DeNarvaez | 199 | 23. | GTO | 32. | 2:12,031 | |
| DNF | 99 | Phil Currin (USA)
Rob Hoskins (USA) Peter Knab (USA) |
Chevrolet Corvette | Phil Currin | 196 | Engine | 24. | GTO | 20. | 2:03,597 |
| DNF | 39 | Wiley Doran (USA)
Jim Barnett (USA) Charles Pelz (USA) |
Chevrolet Corvette | Wiley Doran | 191 | 25. | GTO | 39. | 2:15,365 | |
| DNF | 40 | Andre Sepelon (F)
Bob Lee (USA) Larry Parker (USA) Robert V.LaMay (USA)* |
Ford Mustang | Robert V. LaMay | 180 | 26. | GTO | 59. | no time | |
| DNF | 24 | Tom Frank (USA)
Carl Shafer (USA) |
Porsche Carrera RSR 911 460 9056 | Executive Industries | 178 | 27. | GTO | 16. | 2:02,845 | |
| DNF | 2 | David Hobbs (GB)
Ronnie Peterson (S) Sam Posey (USA) |
BMW 320i Turbo | BMW North America | 177 | Engine | 28. | GTO | 19. | 2:03,031 |
| DNF | 41 | Herb Jones, Jr. (USA)
Steve Faul (USA) |
Chevrolet Camaro | Jones Ind. Racing | 154 | 29. | GTO | 13. | 2:02,070 | |
| DNF | 55 | Rick Thompkins (USA)
Dave Heinz (USA) Lamar Mann (USA) |
Chevrolet Corvette | Rick Thompkins | 151 | Engine | 30. | GTO | 11. | 2:01,399 |
| DNF | 49 | Sam Fillingham (USA)
Mike Williamson (USA) K. P. Jones (USA) |
Chevrolet Corvette | Sam Fillingham | 117 | 31. | GTO | 48. | no time | |
| DNF | 84 | Russ Boykin (USA)
Sam Henderson (USA) C. C. Canada (USA)^ |
Chevrolet Camaro | Lenton B. McGill | 106 | 32. | GTO | 47. | 2:23,174 | |
| DNF | 7 | Anatoly Arutunoff (USA)
José Marina (USA) Brian Goellnicht (USA) |
Lancia Stratos | Hallet Motor Racing Circuit | 99 | Fuel system | 10. | GTU | 54. | no time |
| DNF | 78 | Babe Headley (USA)
Sam Feinstein (USA) Skip Panzarella (USA)^ |
Chevrolet Corvette | Babe Headley | 85 | 33. | GTO | 15. | 2:02,791 | |
| DNF | 21 | Christine Beckers (B)
Lella Lombardi (I) Jean Rondeau (F)^ |
Inaltera Ford | Inaltera | 78 | Accident | 2. | Sports | 4. | 1:54,262 |
| DNF | 63 | Ted Field (USA)
Jon Woodner (USA) Howdy Holmes (USA)^ Danny Ongais (USA)^ |
Porsche Carrera RSR | Ted Field | 72 | Accident | 34. | GTO | 17. | 2:02,893 |
| DNF | 36 | Bill Boye (USA)
Jere Gillan (USA) J. Peter Marinelli (USA)* |
AMC Gremlin | Bill Boye | 60 | 35. | GTO | 57. | no time | |
| DNF | 98 | Ralph Tolman (USA)
Mike Brockman (USA)^ Sam Sommers (USA)^ |
Lotus Europa | Ralph Tolman | 50 | 11. | GTU | 56. | no time | |
| DNF | 80 | Carm Solomone (USA)
Fred Lang (USA) Buzz Fyhrie (USA)^ |
Chevrolet Camaro | Carmon Solomone | 48 | 36. | GTO | 28. | 2:10,029 | |
| DNF | 51 | Robert Kirby (USA)
John Hotchkis (USA) Dennis Aase (USA)^ |
Porsche 914/6 | Kirby/Hitchcock | 47 | Engine | 12. | GTU | 38. | 2:13,666 |
| DNF | 00 | Danny Ongais (USA)
George Follmer (USA)^ Ted Field (USA)^ |
Porsche GTP 911 460 9102 R13 | Interscope Racing | 35 | Piston | 3. | Sports | 6. | 1:56,738 |
| DNF | 01 | Bob Bergstrom (USA)
Jim Cook (USA)^ |
Porsche 911 | Sports Ltd. Racing | 29 | 13. | GTU | 42. | 2:19,335 | |
| DNF | 17 | Vince Gimondo (USA)
Tim Chitwood (USA)^ Joie Chitwood (USA)* |
Chevrolet Nova | Tim Chitwood | 20 | 37. | GTO | 58. | no time | |
| DNF | 03 | Bruno Beilcke (USA)
Alf Gebhardt (USA)^ Sepp Grinbold (USA)* |
BMW 2002 | Bavarian Motors International | 8 | 14. | GTU | 55. | no time | |
| DNS | 04 | Dale Kreider (USA)
Bob DeMarco (USA) |
Pontiac Astre | Bill Nelson | GTO | no time | ||||
| DNS | 65 | Bobby Carradine (USA)
John Morton (USA) Roy Woods (USA) Brad Frisselle (USA)* |
Ferrari 365 GTB/4 16407 | Ramsey Ferrari/Modena Sports Cars | Accident in practice | GTO | 24. | 2:06,003 | ||
| DNS | 79 | Michael Callas (USA)
Jerry Jolly (USA) Pierre Laffeach (F) Peter Papke (USA) Adrian Gang (USA)* |
Porsche Carrera | Michael Callas | GTO | 27. | 2:09,341 | |||
| DNA | 4 | Carlos Moran (ES)
"Jamsal" (ES) |
Porsche Carrera RSR | Carlos Moran | GTO | |||||
| DNA | 5 | Pedro Vazquez (USA)
Jorge DeCardenas (USA) Bertin Garcia (USA) |
Porsche 911S | GTU | ||||||
| DNA | 12 | Bill Freeman (USA)
Paul Newman (USA) Elliot Forbes-Robinson (USA) |
Porsche Carrera RSR | Bill Freeman | GTO | |||||
| DNA | 15 | Javier Garcia (USA) | Chevrolet Corvette Greenwood 006 | Garcia Brothers | GTO | |||||
| DNA | 19 | Paul Spruell (USA)
Gene Budd (USA) Walter Johnston (USA) |
Alfa Romeo Alfetta GT | Paul Spruell | GTU | |||||
| DNA | 25 | Stephen Bond (USA)
Dale Kreider (USA) |
Chevrolet Monza | Stephen Bond | GTO | |||||
| DNA | 26 | Ernie Smith (USA)
John Foshee (USA) Ren Brennan (USA) |
Alfa Romeo Alfetta GT | Ten.Tenths Racing | GTU | |||||
| DNA | 45 | David Sauers (USA)
James Duke (USA) |
Honda Civic | Turbo Systems | Gr.5 | |||||
| DNA | 57 | John Poulos (USA)
Lee Wiese (USA) Jerry Walsh (USA) |
Ford Pinto | Loon Racing | GTU | |||||
| DNA | 62 | Bill Bean (USA)
John Kelly (USA) |
Fiat X1/9 | Alfred Cosentino | GTU | |||||
| DNA | 70 | Don Haines (USA)
Bill McVey (USA) |
Chevrolet Corvette | Don Haines | GTO | |||||
| DNA | 87 | Jim Cook (USA) | Porsche 914/6 | Jim Cook | GTU | |||||
| DNA | 91 | Steve Jones (USA)
Pete Levine (USA) |
Ford Pinto | Joe Jones | GTU |
| Winning Time: 24h02m06.174, 108.801 mph/175.098 kph |
| Fastest Lap: Jacky Ickx #1 (Porsche 935), 1m52.004, 123.424 mph/198.632 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) |