| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 18 | John Paul Jr (USA)
John Paul Sr (USA) |
Porsche 935 JLP-3 Gaacor | John Paul Sr | 244 | 12h02m16.072 | 1 | GTP | 6 | 2:36.146 |
| 2. | 46 | Bobby Rahal (USA)
Mauricio de Narvaez (CO) Jim Trueman (USA) |
March-Chevrolet 82G | Bob Garretson | 244 | 12h02m44.144 | 2 | GTP | 1 | 2:27.067 |
| 3. | 8 | Marion L.Speer (USA)
Terry Wolters (USA) Charles Mendez (USA) John Paul Jr (USA)* John Paul Sr (USA)* |
Porsche 935 JLP-2 00000025 | Alan Reeves | 237 | 3 | GTP | 18 | 2:46.135 | |
| 4 | 50 | Diego Febles (PR)
Tato Ferrer (PR) Chiqui Soldevilla (PR) |
Porsche 911 Carrera RSR | Diego Febles | 235 | 1 | GTO | 20 | 2:53.316 | |
| 5 | 86 | Hurley Haywood (USA)
Al Holbert (USA) Bruce Leven (USA) |
Porsche 935-80 | Bruce Leven | 231 | 4 | GTP | 3 | 2:32.391 | |
| 6 | 38 | Roger Mandeville (USA)
Jeff Kline (USA) Amos Johnson (USA) |
Mazda RX-7 | Roger Mandeville | 224 | 1 | GTU | 26 | 2:57.891 | |
| 7 | 9 | Ray Ratcliff (USA)
Grady Day (USA) Skeeter McKitterick (USA) |
Porsche 935 0090030 | Bob Garretson | 224 | 5 | GTP | 9 | 2:39.236 | |
| 8 | 39 | Rainer Brezinka (CDN)
Rudi Bartling (CDN) Fritz Hochreuter (CDN) |
Porsche 911 Carrera RSR | Rainer Brezinka | 221 | 2 | GTO | 27 | 2:58.180 | |
| 9 | 01 | John Morton (USA)
Tom Klausler (USA) |
Ford Mustang | Marketing Corporation | 219 | 3 | GTO | 66 | no time | |
| 10 | 05 | Tico Almeida (USA)
Ernesto Soto (YV) Rene Rodriguez (USA) |
Porsche 911 Carrera RSR | Almeida/Rodriguez | 218 | 4 | GTO | 23 | 2:56.091 | |
| 11 | 26 | Earl Roe (USA)
Tim Selby (USA) |
Porsche 911 Carrera RSR | Roe/Selby | 212 | 5 | GTO | 60 | no time | |
| 12 | 5 | Derek Bell (GB)
Craig Siebert (USA) Bob Akin (USA) |
Porsche 935L1 Akin | Bob Akin | 212 | 6 | GTP | 5 | 2:36.055 | |
| 13 | 63 | Jim Downing (USA)
Tom Waugh (USA) John Maffucci (USA) |
Mazda RX-7 | Jim Downing | 209 | 2 | GTU | 29 | 2:58.553 | |
| 14 | 75 | Doug Lutz (USA)
Dava Panaccione (USA) |
Porsche 911 Carrera RSR | D & L Performance | 205 | 6 | GTO | 34 | 2:02.600 | |
| 15 | 02 | Milt Minter (USA)
John Bauer (USA) |
Ford Mustang | Marketing Corporation | 194 | 7 | GTO | 42 | 2:10.494 | |
| 16 | 27 | Jim Fowells (USA)
Ray Mummery (USA) John Carusso (USA) |
Mazda RX-7 | Jim Fowells | 194 | 3 | GTU | 53 | 2:23.571 | |
| 17 | 61 | Paul Goral (USA)
Nort Northam (USA) James Burt (USA) |
Porsche 911 | Paul Goral | 189 | 4 | GTU | 62 | no time | |
| NRF | 00 | Ted Field (USA)
Danny Ongais (USA) |
Porsche 935K3-80 Kremer | Ted Field | 187 | engine | GTP | 4 | 2:34.324 | |
| 19 | 21 | Jo Crevier (USA)
Paul Fassler (USA) Bob Zeigel (USA) |
BMW M1 | Jo Crevier | 187 | 8 | GTO | 32 | 2:00.353 | |
| NRF | 7 | Ralph Kent-Cooke (USA)
Jim Adams (USA) David Hobbs (GB) |
Lola-Chevrolet T600 | Ralph Kent-Cooke | 184 | engine | GTP | 7 | 2:38.274 | |
| 21 | 77 | Dudley Davis (USA)
Henry Godfredson (USA) Charles Lloyd (USA) |
Porsche 911 | Dudley Davis | 184 | 5 | GTU | 50 | 2:17.849 | |
| 22 | 78 | Vicki Smith (USA)
Klaus Bitteraud (USA) Scott Flanders (USA) |
Porsche 911 | Klaus Bitterauf | 183 | 6 | GTU | 46 | 2:13.832 | |
| 23 | 58 | Jim Busby (USA)
Doc Bundy (USA) James Brolin (USA) |
Porsche 924 Carrera | Brumos Porsche | 175 | 9 | GTO | 30 | 2:59.636 | |
| NC | 68 | Jack Rynerson (USA)
Van McDonald (USA) Harvey McDonald (USA) |
Porsche 911 | John Rynerson | 168 | 7 | GTU | 45 | 2:12.614 | |
| DNF | 42 | Gary Wonzer (USA)
Bill Bean (USA) Chuck Grantham (USA) |
Porsche 911 | Gary Wonzer | 164 | engine | 8 | GTU | 40 | 2:06.785 |
| DNF | 6 | Desire Wilson (ZA)
Janet Guthrie (USA) Bonnie Henn (USA) |
Ferrari 512BB 30559 | NART | 163 | GTP | 17 | 2:47.321 | ||
| DNF | 16 | Marty Hinze (USA)
Bill Whittington (USA) Don Whittington (USA) Preston Henn (USA)^ |
Porsche 935K3 930 770 0960 | Preston Henn | 151 | GTP | 10 | 2:41.839 | ||
| DNF | 09 | Preston Henn (USA)
Dale Whittington (USA) Randy Lanier (USA) |
Porsche 935-77A | Preston Henn | 146 | oil system | GTP | 11 | 2:44.901 | |
| NC | 88 | Goerge R. Shafer (USA)
J. Craig Shafer (USA) Al H. Crookston (USA) |
Chevrolet Camaro Banjo's Performance | George R. Shafer | 144 | GTO | 65 | no time | ||
| NC | 07 | Tom Buckley (USA)
Peter Aschenbrenner (CDN) Gene Rutherford (USA) Hugh Kleinpeter (USA)* |
Porsche 914/6 | Road Runner | 142 | GTU | 67 | no time | ||
| NC | 97 | Don Cummings (USA)
irwin Ayres (USA) |
Chevrolet Monza | Don Cummings | 141 | GTP | 31 | 2:59.781 | ||
| NC | 94 | Bard Boand (USA)
Richard Anderson (USA) Brian Utt (USA) |
Chevrolet Corvette | bard Boand | 138 | GTO | 38 | 2:04.287 | ||
| DNF | 4 | Darin Brassfield (USA)
Jerry Brassfield (USA) Bill Cooper (USA) Bob Raub (USA)* |
Pontiac Firebird | Gordon Oftedahl | 135 | GTO | 57 | 2:00.000 | ||
| NC | 93 | Uli Bieri (CDN)
Jean-Pierre Silte (CDN) Herman Lausberg (CDN) Jean-Pierre Zingg (CH)^ |
Porsche 911 | Uli Bieri | 127 | GTU | 54 | 2:31.236 | ||
| DNF | 66 | Jack Dunham (USA)
Luis Sereix (USA) Mike Meyer (USA)^ |
Mazda RX-7 | Jack Dunham | 124 | accident | GTU | 33 | 2:00.822 | |
| DNF | 34 | George Drolsom (USA)
Bill Johnson (USA) Tom Davey (USA) |
Porsche 924 Carrera | George Drolsom | 119 | GTO | 37 | 2:04.207 | ||
| DNF | 03 | Angelo Pallavicini (CH)
Neil Crang (AUS) John Sheldon (GB) |
Porsche 935 | Angelo Pallavicini | 119 | GTP | 35 | 2:02.884 | ||
| DNF | 96 | Ron Reed (USA)
Mike Langlinais (USA) |
Datsun 240Z | Bon Temps Racing | 119 | GTU | 51 | 2:19.515 | ||
| DNF | 54 | Tony Garcia (USA)
Albert Naon (USA) Fred Stiff (USA) |
BMW M1 | Montura Racing | 116 | engine | GTO | 14 | 2:46.303 | |
| NC | 81 | Bill McDill (USA)
Mike Meldeau (USA) Tom Juckette (USA) |
Chevrolet Camaro | Mike Meldeau | 104 | GTP | 64 | no time | ||
| DNF | 51 | Ed Pimm (USA)
Walt Bohren (USA) Doug Carmean (USA) |
Mazda RX-7 | Jim Trueman | 103 | GTU | 25 | 2:57.616 | ||
| DNF | 20 | Bruce Jernigan (USA)
William Boyer (USA) Ford Smith (USA)^ Jimmy Tumbleston (USA)^ |
Chevrolet Camaro | Fuchs/Whitaker | 90 | GTP | 49 | 2:17.342 | ||
| DNF | 84 | Enrique Molins (ES)
Eduardo Barrientos (ES) |
Porsche 934 | Enrique Molins | 77 | gearbox | GTO | 18 | 2:47.369 | |
| DNF | 25 | David Cowart (USA)
Kenper Miller (USA) Charles Mendez (USA)* |
March-BMW 82G | David Cowart | 72 | engine | GTP | 8 | 2:38.608 | |
| DNF | 69 | Kenneth LaGrow (USA)
William Boyer (USA) Jack Turner (USA) |
Chevrolet Monza | Kenneth LaGrow | 68 | chassis | GTP | 44 | 2:12.213 | |
| DNF | 44 | Billy Hagan (USA)
Gene Felton (USA) |
Chevrolet Camaro Frings | Billy Hagan | 63 | engine | GTO | 52 | 2:23.078 | |
| DNF | 30 | Ron Case (USA)
Michael Barry (USA) Angelo Pizzagelli (I) |
Porsche 911 | Ron Case | 62 | GTU | 47 | 2:13.987 | ||
| DNF | 65 | Carson Baird (USA)
Tom Pumpelly (USA) Chip Mead (USA) |
Ferrari 512BB 34445 | Ron Spangler | 59 | GTP | 12 | 2:46.086 | ||
| DNF | 74 | Del Russo Taylor (USA)
Wayne Dassinger (USA) Janis Taylor (USA)^ |
Chevron-Buick GTP | Mark Wagoner | 57 | engine | GTP | 63 | no time | |
| DNF | 40 | Luis Gordillo (PR)
Manuel Villa Prieto (PR) Armando Gonzalez (PR) |
Porsche 911 Carrera RSR | Manuel Villa Prieto | 56 | GTO | 36 | 2:03.245 | ||
| DNF | 79 | Tom Winters (USA)
Robert Overby (USA) Bob Bergstrom (USA) |
Porsche 924 Carrera | Paul Gentilozzi | 55 | GTO | 19 | 2:51.168 | ||
| DNF | 10 | Bob Raub (USA)
Tony Brassfield (USA) Carl Shafer (USA) Darin Brassfield (USA)* Bill Cooper (USA)* |
Pontiac Firebird | Gordon Oftedahl | 52 | engine | GTO | 58 | 2:00.000 | |
| DNF | 87 | Luis Mendez (DR)
Ralph Sanchez (USA) Armando Ramirez (USA) |
Mazda RX-7 | Ralph Sanchez | 50 | GTU | 28 | 2:58.426 | ||
| DNF | 23 | Raul Garcia (USA)
Armando Fernandez (USA) |
Chevrolet Camaro Superior | Raul Garcia | 38 | engine | GTP | 59 | no time | |
| DNF | 82 | Jim Cook (USA)
Jim Mullen (USA) John Casey (USA)* |
Mazda RX-7 | Trinity Racing | 36 | suspension | GTU | 22 | 2:55.168 | |
| DNF | 15 | Timothy F. M. Lee (USA)
Al White (USA) Craig Pearce (USA) |
Mercury Capri | Tim Lee | 36 | GTU | 55 | 2:39.513 | ||
| DNF | 53 | Francisco Miguel (ES)
Guillermo Valiente (ES) Benjamin Gonzalez (ES)^ Wenseslao Kreysa (ES)* |
BMW CSL | Francisco Miguel | 27 | GTO | 43 | 2:11.866 | ||
| DNF | 48 | Phil Currin (USA)
John Carusso (USA) |
Chevrolet Corvette | John Carusso | 26 | engine | GTP | 16 | 2:47.297 | |
| DNF | 3 | Ned Skiff (USA)
Jim Leo (USA) |
Renault R12 | Ned Skiff | 26 | GTU | 56 | 2:00.000 | ||
| DNF | 19 | Ash Tisdelle (USA)
Lance Van Every (USA) |
Porsche 911 Carrera RSR | Lance Van Every | 23 | GTO | 24 | 2:57.130 | ||
| DNF | 36 | Paul Miller (USA)
Pat Bedard (USA)^ Juergen Barth (D)^ |
Porsche 924 Carrera | Herman/Miller | 23 | engine | GTO | 61 | no time | |
| DNF | 45 | Hershel McGriff 9USA)
Richard Brooks (USA)^ |
Chevrolet Camaro Frings | Billy Hagan | 21 | engine | GTP | 21 | 2:53.578 | |
| DNF | 60 | Bob Lee (USA)
Brian Erikson (USA) Guy W. Church (USA)^ |
American Motors AMX | Bob Lee | 18 | GTO | 48 | 2:16.197 | ||
| DNF | 71 | Jeffrey Loving (USA)
Edward Belin (USA)^ |
Chevrolet Camaro | Sunrise Auto | 14 | engine | GTO | 41 | 2:06.865 | |
| DNF | 2 | John Fitzpatrick (GB)
David Hobbs (GB)^ |
Porsche 935K3-80 Kremer K4-01 | John Fitzpatrick | 7 | accident | GTP | 2 | 2:30.235 | |
| DNF | 29 | Hoyt Overbagh (USA)
Peter Kirill (USA)^ Scott Smith Jr (USA)^ |
Oldsmobile Starfire | Oberdorfer Research | 7 | engine | GTO | 39 | 2:06.088 | |
| DNF | 11 | Dennis Aase (USA)
Chuck Kendall (USA)^ John Hotchkis Sr (USA)^ |
BMW M1 | Chuck Kendall | 1 | accident | GTO | 15 | 2:46.927 | |
| DNS | 0 | Ted Field (USA)
Danny Ongais (USA) |
Porsche 935KS-80 Kremer K4-02 | Ted Field | GTP | 2:38.879 | ||||
| DNS | 17 | Tim Chitwood (USA)
Joe Varde (USA) |
Chevrolet Camaro | Chitwood Racing | GTO | 3:06.191 | ||||
| DNS | 31 | Anatly Arutunoff (USA)
Jose Marina (USA) |
Lancia Stratos | Anatoly Arutunoff | GTU | 3:19.400 | ||||
| DNS | 22 | Werner Frank (USA)
Ken madren (USA) |
Porsche 934 | Werner Frank | GTO | |||||
| DNS | 28 | Bill McVey (USA)
David Deacon (USA) Scott Smith Sr (USA) |
Chevrolet Camaro | Bill McVey | GTO | |||||
| DNS | 47 | Frank Rubino (USA)
Tom Davis (USA) Jim Mullen (USA)^ |
Ferrari 512BB 31589 | Frank Rubinho | gearbox | GTP | ||||
| DNA | 13 | Rene Rodriguez (USA)
Tico Almeida (USA) John Greenwood (USA) |
Chevrolet Corvette Protofab | Almeida/Rodriguez | GTO | |||||
| DNA | 35 | Marion L. Speer (USA)
Terry Wolters (USA) Ray ratcliff (USA) |
Porsche 911 Carrera | Wolters/Speer | GTO | |||||
| DNA | 56 | Rick Borlase (USA)
Michael Hammond (USA) |
Porsche 911 Carrera | Rick Borlase | GTO | |||||
| DNA | 57 | Mike Williamson (USA)
Charles Gano (USA) |
Chevrolet Corvette | Capricorn Motor Racing | GTO | |||||
| DNA | 73 | Vincent P. Collins (USA)
Lojza Vosta (USA) |
Chevrolet Vega | Vincent P. Collins | GTU | |||||
| DNA | 92 | Rick Knoop (USA)
Lee Mueller (USA) Kathy Rude (USA) |
Mazda RX-7 | Rick Knoop | GTU | |||||
| DNA | 04 | Fred Flaquer (USA)
Joe Gonzalez (USA) Lee Myers (USA) |
Porsche 911 Carrera RSR | Almeida/Rodriguez | GTO |
| Winning Time: 12h02m16.072, 105.401 mph/169.627 kph |
| Fastest Lap: John Fitzpatrick #2 (Porsche 935K3-80), 2m34.490, 121.173 mph/195.009 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) |