| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | David Hobbs (GB)
Derek Bell (GB) |
BMW 320i | McLaren North America | 125 | 4h58m47.980 | 1 | GTX | 4 | 2:16.556 |
| 2 | 5 | Charles Mendez (USA)
Paul Miller (USA) |
Porsche 935 9307700911 | Charles Mendez | 125 | 4h59m41.130 | 2 | GTX | 6 | 2:20.170 |
| 3 | 0 | Ted Field (USA)
Milt Minter (USA) |
Porsche 935-79 9309900029 | Ted Field | 125 | 3 | GTX | 7 | 2:21.544 | |
| 4 | 3 | Jim Busby (USA)
Dennis Aase (USA) |
BMW M1 | Jim Busby | 122 | 4 | GTX | 8 | 2:21.947 | |
| 5 | 9 | Rob McFarlin (USA)
Bob Akin (USA) Roy Woods (USA)* |
Porsche 935-77A 9307700959 | Dick Barbour | 120 | 5 | GTX | 11 | 1:29.647 | |
| 6 | 44 | Bob Tullius (USA)
Brian Fuerstenau (USA) |
Triumph TR8 | Bob Tullius | 116 | 1 | GTO | 14 | 2:30.505 | |
| 7 | 54 | Tony Garcia (USA)
Terry Herman (USA) |
Porsche 911 Carrera | Montura Racing | 116 | 2 | GTO | 16 | 2:32.610 | |
| 8 | 46 | Mauricio de Narvaez (CO)
Albert Naon (USA) |
Porsche 911 Carrera | Mauricio de Narvaez | 115 | 3 | GTO | 17 | 2:32.817 | |
| 9 | 79 | Bob Bergstrom (USA)
Rick Knoop (USA) Roger Mandeville (USA)* |
Mazda RX-7 | Bob Bergstrom | 114 | 1 | GTU | 15 | 2:32.045 | |
| 10 | 89 | Francisco Romero (YV)
Diego Febles (PR) Ernesto Soto (YV)^ |
Porsche 911 Carrera | Hector Huerta | 113 | 4 | GTO | 13 | 2:30.045 | |
| 11 | 77 | Roger Mandeville (USA)
Jim Downing (USA) |
Mazda RX-7 | Roger Mandeville | 113 | 2 | GTU | 20 | 2:34.292 | |
| 12 | 17 | Jeff Kline (USA)
Jim Mederer (USA) |
Mazda RX-7 | Mederer/Oku | 112 | 3 | GTU | 19 | 2:34.039 | |
| 13 | 62 | William Koll (USA)
Jim Cook (USA) |
Porsche 914/6 | William Koll | 112 | 4 | GTU | 24 | 2:36.648 | |
| 14 | 61 | Jerry Lancaster (USA)
John Luczyk (USA) |
Chevrolet Corvette | L&L Racing | 109 | 5 | GTO | 30 | 2:38.752 | |
| 15 | 42 | Tom Ashby (USA)
Bill Bean (USA) |
Porsche 911 | Bullwinkele Racing | 109 | 5 | GTU | 28 | 2:37.463 | |
| 16 | 03 | Werner Frank (USA)
Rudi Bartling (CDN) |
Porsche 934 | Werner Frank | 109 | 6 | GTO | 18 | 2:32.955 | |
| 17 | 66 | Kees Nierop (CDN)
Norm Ridgely (CDN) |
Porsche 935 | Stanton/Barbour | 107 | 6 | GTX | 9 | 2:25.523 | |
| 18 | 38 | Skip DeAscentis (USA)
Larry Trotter (USA) |
Chevrolet Corvette | Skip DeAscentis | 107 | 7 | GTO | 25 | 2:37.059 | |
| 19 | 4 | Skeeter McKitterick (USA)
Bob Garretson (USA) Joe Marcus (USA)^ |
Porsche 935 0910-DBR1 | Dick Barbour | 106 | 7 | GTX | 5 | 2:19.391 | |
| 20 | 34 | George Drolsom (USA)
C. Fred Clark (USA) |
Porsche 911 | George Drolsom | 102 | 6 | GTU | 37 | 2:45.220 | |
| 21 | 40 | Steve Southard (USA)
Earl Roe (USA) |
Porsche 914/6 | Performance Specialists | 102 | 7 | GTU | 39 | 2:46.732 | |
| 22 | 7 | Walt Bohren (USA)
Ron Cortez (USA) |
Mazda RX-7 | Walt Bohren | 99 | 8 | GTU | 27 | 2:37.059 | |
| NRF | 6 | Brian Redman (GB)
Dick Barbour (USA) Skeeter McKitterick (USA) Rolf Stommelen (D)* |
Porsche 935 9308900024 | Dick Barbour | 98 | GTX | 2 | 2:15.675 | ||
| NRF | 85 | John E. Hulen (USA)
Ron Coupland (USA) |
Porsche 914/6 | John E. Hulen | 89 | GTU | 34 | 2:44.237 | ||
| 25 | 31 | Bard Boand (USA)
Keith Feldott (USA) Harold Higgins (USA)* |
Chevrolet Corvette | Bard Boand | 88 | 8 | GTO | 26 | 2:37.232 | |
| 26 | 83 | Don C. Devendorf (USA)
Tony Adamowicz (USA) |
Datsun 280ZX | Don C. Devendorf | 87 | clutch | 10 | GTU | 12 | 2:29.866 |
| NC | 52 | Wayne Baker (USA)
Paul Haas (GB) Margie Smith-Haas (USA) |
Porsche 914 | Wayne Baker | 85 | 11 | GTU | 40 | 2:48.897 | |
| DNF | 73 | Clark Howey (USA)
Dale Koch (USA) |
Chevrolet Camaro | Clark Howey | 84 | GTO | 36 | 2:45.068 | ||
| NC | 28 | Ray Irwin (USA)
Robert Kivela (USA) |
Chevrolet Corvette | Auto Concepts | 81 | 10 | GTO | 38 | 2:46.578 | |
| DNF | 29 | Thomas E. Cronin (USA)
Ken Bolt (USA) |
Fiat 128 | Thomas E. Cronin | 76 | GTU | 42 | 2:59.114 | ||
| DNF | 48 | Phil Currin (USA)
John Carusso (USA) |
Chevrolet Corvette | John Carusso | 71 | GTO | 10 | 2:27.809 | ||
| DNF | 86 | Peter Gregg (USA)
Hurley Haywood (USA) Bruce Leven (USA) |
Porsche 935 9307700909 | Bruce Leven | 68 | valves | GTX | 1 | 2:14.979 | |
| DNF | 43 | Bob Gregg (USA)
Leonard Jones (USA) |
Porsche 911 | Bob Gregg | 58 | GTO | 33 | 2:43.791 | ||
| DNF | 45 | Mike Guffey (USA)
Jack Buchinger (USA) |
Datsun 280Z | Mike Guffey | 54 | GTU | 35 | 2:44.430 | ||
| DNF | 39 | John Higgins (USA)
James King (USA) Roger Seacrist (USA) |
Porsche 911 | Barrick Motor Racing | 50 | GTU | 32 | 2:41.963 | ||
| NC | 72 | Philip Keirn (USA)
Ed Errington (USA) |
Chevrolet Corvette | Philip Keirn | 47 | GTO | 22 | 2:36.375 | ||
| DNF | 60 | Rusty Bond (USA)
Ren Tilton (USA) |
Porsche 911 | E.J.Pruitt | 44 | GTU | 44 | no time | ||
| DNF | 07 | Ludwig Heimrath (CDN)
Brett Lunger (USA) |
Porsche 935 9307700958 | Ludwih Heimrath | 28 | GTX | 3 | 2:16.000 | ||
| DNF | 56 | Craig Carter (USA)
David Laughlin (USA)^ |
Chevrolet Camaro (Peerless) | Rick Hendrick | 8 | GTO | 29 | 2:37.508 | ||
| DNF | 8 | Anatoly Arutunoff (USA)
Jose Marina (USA)^ |
Lancia Stratos | Anatoly Arutunoff | 7 | GTU | 41 | 2:54.914 | ||
| DNF | 25 | Kenper Miller (USA)
David Cowart (USA)^ |
BMW 3.5 CSL | Deren Automotive | 1 | GTO | 31 | 2:41.444 | ||
| DNF | 01 | Dave White (USA)
J. Kurt Roehrig (USA)^ |
BMW 320i | J. Kurt Roehrig | 0 | GTU | 21 | 2:35.738 | ||
| DNS | 14 | Rusty Schmidt (USA)
Douglas Grunnet (USA) |
Chevrolet Corvette | Corvettes Unlimited | GTO | 23 | 2:36.558 | |||
| DNS | 41 | Mark Leuzinger (USA)
Mike van der Werff (USA) |
De Tomaso Pantera | B.R.Racing | GTO | 43 | no time | |||
| DNP | 00 | Porsche 935 | Ted Field | GTX | ||||||
| DNA | 13 | Hal Shaw Jr (USA)
Gary Belcher (USA) |
Porsche 935 9306700180 | Hal Shaw Jr | GTX | |||||
| DNA | 19 | Chris Cord (USA)
Jim Adams (USA) |
Chevrolet Monza (DeKon) 1011 | Chris Cord | GTX | |||||
| DNA | 49 | Joseph Pirotta (USA)
Bill Lang (USA) |
Chevrolet Corvette | Joseph Pirrotta | GTO | |||||
| DNA | 51 | Robert Kirby (USA)
John Hotchkis Sr (USA) |
Porsche 911 Carrera | Kirby/Hitchcock | GTO | |||||
| DNA | 98 | Lance Van Every (USA)
Ash Tisdelle (USA) |
Porsche 911 Carrera RSR | Lance Van Every | GTO |
| Winning Time: 4h58m47.980, 100.403 mph/161.581 kph |
| Fastest Lap: Peter Gregg #86 (Porsche 935), 2m14.962, 106.697 mph/171.711 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) |