| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 30 | George Dyer (USA)
Brad Frisselle (USA) |
Porsche Carrera RSR 911 460 9048 | George Dyer Racing | 234 | 12:00:33,182 | 1. | GTO | 7. | 2:55,426 |
| 2. | 58 | Diego Febles (PR)
Hiram Cruz (USA) Armando Gonzalez (PR)* |
Porsche Carrera RSR 911 460 5064 | Diego Febles Racing | 229 | 12:01:13,047 | 2. | GTO | 11. | 2:59,561 |
| 3. | 61 | Jim Busby (USA)
Peter Gregg (USA) |
Porsche 934 930 770 0951 | Brumos Racing | 229 | 3. | GTO | 1. | 2:47,003 | |
| 4. | 09 | John Gunn (USA)
Gary Belcher (USA) |
Porsche 934 930 670 0175? | Belcher Racing | 228 | 4. | GTO | 4. | 2:50,070 | |
| 5. | 0 | Danny Ongais (USA)
Ted Field (USA) Hurley Haywood (USA) |
Porsche 934 930 770 0953 or 0180 | Vasek Polak/Interscope Racing | 218 | 5. | GTO | 2. | 2:47,619 | |
| 6. | 9 | Rudy Bartling (CDN)
Klaus Bytzek (CDN) Harry Bytzek (CDN)* |
Porsche Carrera RSR | Bytzek Racing | 217 | 6. | GTO | 19. | 3:03,661 | |
| 7. | 24 | Tom Frank (USA)
Carl Shafer (USA) |
Porsche Carrera RSR 911 460 9056 | Executive Industries | 214 | 7. | GTO | 16. | 3:01,271 | |
| 8. | 50 | Gerhard Hirsch (CDN)
Fritz Hochreuter (CDN) Rainer Brezinka (CDN) |
Porsche 911S | Motex Auto | 203 | 1. | GTU | 51. | 3:24,306 | |
| 9. | 27 | Ray Mummery (USA)
Jack Refenning (USA) Joseph Hamilton (USA) Ralph Noseda (USA)* |
Porsche 911S | Miami Auto Racing | 203 | 2. | GTU | 70. | no time | |
| 10. | 07 | Charles Mendez (USA)
Dave Cowart (USA) Dave Panaccione (USA)* |
Porsche Carrera RSR | Morrison's Inc. | 197 | 8. | GTO | 17. | 3:02,187 | |
| 11. | 78 | Phil Francis (USA)
Eugenio Matienzo (USA) Tom Nowling (USA) |
Chevrolet Camaro | 196 | 9. | GTO | 43. | 3:17,813 | ||
| 12. | 39 | Wiley Doran (USA)
Jim Barnett (USA) Charles Pelz (USA) |
Chevrolet Corvette | Wiley Doran | 194 | 10. | GTO | 31. | 3:10,100 | |
| 13. | 11 | Gary Nylander (USA)
Bobbee Nylander (USA) Michael Hammond (USA) |
Porsche 911S | Motoring Enthusiasts | 191 | 3. | GTU | 41. | 3:16,684 | |
| 14. | 70 | M. L. Speer (USA)
Windle Turley (USA) Hal Sahlman (USA)^ |
Porsche 911S | Race Car | 188 | 4. | GTU | 56. | 3:30,487 | |
| 15. | 60 | Rusty Bond (USA)
Ren Tilton (USA) John Thomas (USA)^ |
Porsche 911S | R & R Racing | 187 | 5. | GTU | 27. | 3:08,063 | |
| 16. | 72 | Bill Arnold (USA)
Billy Hagan (USA) Carl Thompson (USA)* |
Chevrolet Corvette | Bill Arnold Racing | 185 | 11. | GTO | 24. | 3:06,736 | |
| 17. | 65 | John Morton (USA)
Bobby Carradine (USA) |
Ferrari 365 GTB/4 16407 | Modena Sports Cars | 184 | 12. | GTO | 10. | 2:58,799 | |
| 18. | 01 | Bob Bergstrom (USA)
Jim Cook (USA) |
Porsche 911 | Sports Ltd. Racing | 183 | 6. | GTU | 29. | 3:08,272 | |
| 19. | 06 | Dave Panaccione (USA)
Gary Mesnick (USA) J. Dana Roehrig (USA) |
Porsche 911T | J. Dana Roehrig | 182 | 7. | GTU | 35. | 3:14,951 | |
| 20. | 7 | Anatoly Arutunoff (USA)
José Marina (USA) Brian Goellnicht (USA) |
Lancia Stratos | Hallet Motor Racing Circuit | 178 | 8. | GTU | 61. | 3:36,554 | |
| 21. | 49 | Sam Fillingham (USA)
K. P. Jones (USA) Mike Williamson (USA) Rusty Schmidt (USA)^ |
Chevrolet Corvette | Fillingham Racing | 175 | 13. | GTO | 39. | 3:15,791 | |
| NRF | 05 | Jim Trueman (USA)
Jerry Thompson (USA) Don Yenko (USA) |
Chevrolet Monza Trueman | Red Roof Inns | 172 | 14. | GTO | 6. | 2:55,295 | |
| 23. | 76 | John Greenwood (USA)
Burt Greenwood (USA) Rick Mancuso (USA) |
Chevrolet Corvette Greenwood 007 | Mancuso Chevrolet | 167 | 15. | GTO | 3. | 2:49,483 | |
| NRF | 51 | Robert Kirby (USA)
John Hotchkis (USA) Dennise Aase (USA)* |
Porsche 914/6 | Kirby-Hotchkis Racing | 164 | 9. | GTU | 32. | 3:11,708 | |
| NC | 82 | Tom Ross (USA)
Paul Tavilla (USA) |
Ford Mustang | Tom Ross | 161 | 16. | GTO | 60. | 3:32,193 | |
| DNF | 94 | Tony Ansley (USA)
Charles Gano (USA) Ron Connelly (USA) |
Chevrolet Corvette | Tony Ansley | 160 | 17. | GTO | 49. | 3:21,752 | |
| DNF | 73 | Clark Howey (USA)
Dale Koch (USA) David Crabtree (USA) |
Chevrolet Corvette | Howey Farms | 157 | Accident | 18. | GTO | 47. | 3:19,944 |
| NC | 85 | John Hulen (USA)
Ron Coupland (USA) Dave Causey (USA) |
Porsche 914/6 | John Hulen | 157 | 10. | GTU | 37. | 3:15,072 | |
| DNF | 64 | Bob Bondurant (USA)
Dick Smothers (USA) Milt Minter (USA) |
Ferrari 365 GTB/4 14437 | Ramsey Ferrari | 151 | Accident | 19. | GTO | 14. | 3:00,497 |
| NC | 2 | Bill Freeman (USA)
Paul Newman (USA) |
Porsche 911S | Bill Freeman | 150 | 11. | GTU | 40. | 3:16,077 | |
| DNF | 10 | Hans Berner (CDN)
Willy Goebbels (CDN) |
Porsche Carrera | Motex Auto | 148 | 20. | GTO | 44. | 3:18,293 | |
| DNF | 98 | Juan Montalvo (C)
Tony Garcia (USA) Jorge DeCardenas (USA) |
Porsche 911S | Conrad Racing | 145 | 12. | GTU | 74. | no time | |
| NC | 08 | Terry Wolters (USA)
Lawrence P. Pleasants (USA) |
Porsche 911S 911 030 1263 | Busch Beer | 144 | 13. | GTU | 55. | 3:29,346 | |
| DNF | 44 | Neil Potter (USA)
Bill Boye (USA) |
Ford Mustang | Neil Potter | 142 | 21. | GTO | 62. | 3:41,155 | |
| DNF | 18 | Jack Swanson (USA)
Wayne Miller (USA) Terry Walters (USA)* |
Chevrolet Camaro | Terry Wolters | 138 | 22. | GTO | 42. | 3:16,917 | |
| DNF | 92 | Mike Tillson (USA)
David Olimpi (USA) |
Porsche Carrera | Mike Tillson Motor Racing | 135 | 23. | GTO | 33. | 3:12,366 | |
| DNF | 46 | Mauricio DeNarvaez (CO)
Albert Naon (USA) John Freyre (USA)* |
Porsche Carrera RSR | Mauricio DeNarvaez | 130 | 24. | GTO | 22. | 3:05,101 | |
| DNF | 17 | Tim Chitwood (USA)
Vince Gimondo (USA) Joie Chitwood (USA) |
Chevrolet Nova | Chitwood Racing | 128 | Transmission | 1. | AC | 45. | 3:18,951 |
| DNF | 15 | Javier Garcia (USA)
Jack Baldwin (USA) George Garcia (USA) |
Chevrolet Corvette Greenwood 006 | Javier Garcia | 125 | Accident | 25. | GTO | 8. | 2:55,790 |
| DNF | 77 | Bruce Jennings (USA)
Bill Bean (USA) |
Porsche 911S | Bruce Jennings | 123 | 14. | GTU | 38. | 3:15,759 | |
| DNF | 31 | Paul Bowden (USA)
Jimmy Tumbleston (USA) Kenneth LaGrow (USA) |
Chevrolet Camaro | Kenneth LaGrow | 122 | Transmission | 26. | GTO | 63. | 3:42,275 |
| DNF | 22 | Bill King (USA)
Jon Lehew (USA) C. W. Lehew (USA)^ |
Datsun 240Z | Angel's Auto World | 120 | 15. | GTU | 58. | 3:31,856 | |
| DNF | 80 | Fred Lang (USA)
Carm Solomone (USA) |
Chevrolet Camaro | Carmon Solomone | 116 | 27. | GTO | 26. | 3:08,039 | |
| NC | 03 | Ron Oyler (USA)
Carlos Muratti (PR) Martinas Smit (USA) Pesquera^ |
Renault R12 | 109 | 16. | GTU | 67. | 3:48,772 | ||
| DNF | 86 | Hugh Kleinpeter (USA)
Jef Stevens (USA) |
De Tomaso Pantera | Hugh Kleinpeter | 93 | Transmission | 28. | GTO | 12. | 2:59,567 |
| DNF | 20 | Vince DiLella (USA)
Manuel Cueto (USA) |
Porsche 914/4 | Vince DiLella | 93 | 17. | GTU | 59. | 3:32,123 | |
| DNF | 99 | George Shafer (USA)
Craig Shafer (USA) Dick Scott (USA) Al Crookston (USA)^ |
Datsun 240Z | George Shafer/Craig Shafer | 89 | 18. | GTU | 53. | 3:26,290 | |
| DNF | 4 | Mark Leuzinger (USA)
H. David Redszus (USA) Mike Van der Werff (USA) |
De Tomaso Pantera | B. R. Racing | 89 | 29. | GTO | 65. | 3:44,477 | |
| DNF | 54 | Hal Sahlman (USA)
Preston Henn (USA) Steve Cook (USA) Alex Job (USA)* Steve Southard (USA)* |
Porsche 914/6 | Spirit Racing | 81 | 19. | GTU | 48. | 3:21,230 | |
| DNF | 71 | Tom Bagley (USA)
Chip Mead (USA) Peter Knab (USA)^ John Higgins (USA)* |
Porsche 911S | The Foreign Exchange | 77 | Transmission | 20. | GTU | 34. | 3:14,809 |
| DNF | 8 | Bob Beasley (USA)
George Stone (USA) |
Porsche Carrera RSR 911 460 0035 | Bob Beasley | 74 | Engine | 30. | GTO | 13. | 3:00,213 |
| DNF | 1 | Michael Keyser (USA)
Harry Jones (USA) John O'Steen (USA)^ Richard Kendrick (USA)^ Hurley Haywood (USA)^ |
Ferrari 365 GTB/4 | Harry Jones | 66 | Transmission | 31. | GTO | 25. | 3:07,103 |
| DNF | 36 | Tico Almeida (USA)
Rene Rodriguez (USA) Manuel Quintana (USA) |
Chevrolet Camaro | Motorcito Racing | 62 | 32. | GTO | 50. | 3:22,496 | |
| DNF | 48 | John Carusso (USA)
Luis Sereix (USA) Emory Donaldson (USA) Lyn St. James (USA)^ |
Chevrolet Corvette | Autodyne | 59 | 33. | GTO | 21. | 3:04,878 | |
| DNF | 68 | Phil Currin (USA)
Rick Hay (USA) Rob Hoskins (USA) Peter Knab (USA)* |
Chevrolet Corvette | Rick Hay | 53 | Engine | 34. | GTO | 5. | 2:54,560 |
| DNF | 66 | Ralph Noseda (USA)
Richard Small (USA) Jeff Loving (USA) |
Chevrolet Camaro | Ralph Noseda | 49 | 35. | GTO | 18. | 3:03,618 | |
| DNF | 67 | Dave White (USA)
David McClain (USA) |
Porsche 911S | Havatampa Cigars | 48 | Accident | 21. | GTU | 23. | 3:05,226 |
| DNF | 29 | Bonky Fernandez (PR)
Manuel Godinez (PR) Tato Ferrer (PR) |
Lotus Elan | Bonky Fernandez | 47 | 22. | GTU | 52. | 3:24,310 | |
| DNF | 55 | Jim Fitzgerald (USA)
Rick Thompkins (USA) David Heinz (USA)* Lamar Mann (USA)* |
Chevrolet Corvette | Rick Thompkins | 45 | 36. | GTO | 46. | 3:19,043 | |
| DNF | 95 | Marty Hinze (USA)
Robert E. Davis (USA) |
Chevrolet Corvette | Robert E. Davis | 42 | Engine | 37. | GTO | 73. | no time |
| DNF | 41 | Herb Jones, Jr. (USA)
Steve Faul (USA) |
Chevrolet Camaro | Jones Ind. Racing | 39 | 38. | GTO | 20. | 3:04,112 | |
| DNF | 28 | Gene Budd (USA)
Walter Johnston (USA) Paul Spruell (USA)^ |
Alfa Romeo Alfetta | Paul Spruell | 38 | Engine | 23. | GTU | 66. | 3:47,084 |
| DNF | 40 | Dave Heinz (USA)
R. V. Shulnberg (USA) John Brandt (USA)^ |
Chevrolet Corvette Greenwood 008 | R. V. Shulnburg | 38 | Transmission | 39. | GTO | 15. | 3:00,674 |
| DNF | 5 | Pedro Vazquez (USA)
Bill Wolfe (USA) Richard Weiss (USA)^ Jorge DeCardenas (USA)* Bertin Garcia (USA)* |
Porsche 911S | Pedro Vazquez | 35 | 24. | GTU | 54. | 3:28,070 | |
| DNF | 37 | Rollie Walriven (USA)
Slim Helson (USA) |
Chevrolet Camaro | 35 | 40. | GTO | 57. | 3:30,609 | ||
| DNF | 52 | Charles Kleinschmidt (USA)
Guido Levetto (USA) |
MGB GT | Charles Kleinschmidt | 33 | 25. | GTU | 68. | 3:53,611 | |
| DNF | 26 | Louis McAlpine (USA)
Ernie Smith (USA) John Foshee (USA)* Ren Brennan (USA)* |
Alfa Romeo Alfetta GT | Alfa Romeo South | 26 | 26. | GTU | 69. | 4:03,006 | |
| DNF | 88 | Jim Boros (USA)
Dennis Aase (USA)^ |
Porsche 911S | 24 | Accident | 27. | GTU | 28. | 3:08,094 | |
| DNF | 38 | John Paul (USA)
John O'Steen (USA)^ John Graves (USA)^ Bob Hagestad (USA)^ |
Porsche Carrera RSR 911 460 9113 | John Paul Sr. | 13 | Engine | 41. | GTO | 9. | 2:58,499 |
| DNF | 79 | Don Nooe (USA)
Jim Stricklin (USA)^ |
Shelby GT350 | 10 | 42. | GTO | 71. | no time | ||
| DNF | 19 | Gene Felton (USA)
Richard Bostyan (USA) Ray Kessler (USA)^ John Emig (USA)* |
Chevrolet Corvette | Richard Bostyan | 9 | 43. | GTO | 36. | 3:14,989 | |
| DNF | 57 | John Tunstall (USA)
Chuck Wade (USA)^ |
Porsche Carrera | Starbrite | 2 | Suspension | 44. | GTO | 30. | 3:09,635 |
| DNS | 00 | Danny Ongais (USA)
Ted Field (USA) |
Porsche 934 | Interscope Racing | Raced car 0 | GTO | no time | |||
| DNS | 04 | Dale Kreider (USA)
Bob DeMarco (USA) |
Pontiac Astre | Bill Nelson | Withdrawn | GTO | no time | |||
| DNS | 75 | Bob Christiansen (USA)
Ossie DeLay (USA) |
Chevrolet Camaro | Bob Christiansen | Withdrawn | GTO | no time | |||
| DNS | 83 | Les Delano (USA)
John Barringer (USA) |
Porsche 911S | Withdrawn | GTU | no time | ||||
| DNS | 91 | Fred Werl (USA)
Jay C. Miller (USA) Dan Slodowick (USA) |
Ford Mustang | Fred Werl | GTO | 72. | no time | |||
| DNS | 93 | Ralph Tolman (USA)
Jim Fitzgerald (USA) Mike Brockman (USA) |
Lotus Europa | Ralph Tolman | GTU | 64. | 3:42,986 | |||
| DNA | 4 | Carlos Moran (ES)
"Jamsal" (ES) |
Porsche Carrera RSR | Carlos Moran | GTO | |||||
| DNA | 6 | Amos Johnson (USA)
Dennis Shaw (USA) Steve Anderson (USA) |
AMC Gremlin | Amos Johnson | GTO | |||||
| DNA | 13 | Bob Fryer (USA)
Don Yenko (USA) Ed Lowther (USA) |
AMC Javelin | University of Pitttsburgh | GTO | |||||
| DNA | 14 | Al Holbert (USA)
Michael Keyser (USA) |
Chevrolet Monza | Dickinson/Holbert | GTO | |||||
| DNA | 25 | Stephen Bond (USA)
Dale Kreider (USA) |
Chevrolet Monza | Stephen Bond | GTO | |||||
| DNA | 28 | Raymond Gage (USA)
Bill Alsup (USA) Richard Weiss (USA) |
Porsche 911S | Richard Weiss | GTU | |||||
| DNA | 34 | George Drolsom (USA)
Tom Bagley (USA) |
Porsche 911S | George Drolsom | GTU | |||||
| DNA | 36 | Bill Boye (USA)
J. Peter Marinelli (USA) |
AMC Gremlin | Bill Boye | GTO | |||||
| DNA | 40 | Robert LaMay (USA) | Ford Mustang | Robert V. LaMay | GTO | |||||
| DNA | 42 | Bob Hindson (USA)
Frank Carney (USA) Dick Davenport (USA) |
Porsche 911S | Bob Hindson | GTU | |||||
| DNA | 47 | Kenper Miller (USA)
Paul Miller (USA) David Hobbs (GB) |
BMW 3.0 CSL | KWM Racing | GTO | |||||
| 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 | 78 | Babe Headley (USA)
Sam Feinstein (USA) Skip Panzarella (USA) |
Chevrolet Corvette | Babe Headley | GTO | |||||
| DNA | 79 | Michael Callas (USA)
Adrian Gang (USA) |
Porsche Carrera | Michael Callas | GTO | |||||
| DNA | 91 | Steve Jones (USA)
Pete Levine (USA) |
Ford Pinto | Joe Jones | GTU | |||||
| DNA | 96 | Gene Felton (USA)
Buzz Cason (USA) James Reeve (USA) |
Chevrolet Camaro | Clay Young | GTO |
| Winning Time: 12h00m33.182, 101.322 mph/163.062 kph |
| Fastest Lap: Peter Gregg #61 (Porsche 934), 2m47.444, 111.799 mph/179.922 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) |