| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 62 | Bob Wollek (F)
Derek Bell (GB) John Andretti (USA) |
Porsche 962 (Chapman) C02 | Jim Busby | 621 | 24h01m39.925 | 1 | GTP | 12 | 1:42.944 |
| 2 | 61 | Price Cobb (USA)
John Nielsen (DK) Andy Wallace (GB) Jan Lammers (NL) |
Jaguar XJR-9 (Advanced) 388 | Tom Walkinshaw | 621 | 24h03m46.522 | 2 | GTP | 7 | 1:40.803 |
| 3 | 3 | Oscar Larrauri (RA)
Walter Brun (CH) Hans-Joachim Stuck Jr (D) Doc Bundy (USA)^ |
Porsche 962C 128 | Walter Brun | 603 | 3 | GTP | 4 | 1:39.937 | |
| 4 | 86 | Klaus Ludwig (D)
James Weaver (GB) Sarel van der Merwe (ZA) Rob Dyson (USA)* Dominic Dobson (USA)* John Paul Jr (USA)* Hans-Joachim Stuck Jr (D) |
Porsche 962 139 | Bruce Leven | 600 | 4 | GTP | 5 | 1:39.969 | |
| 5 | 77 | Yoshimi Katayama (J)
Takashi Yorini (J) Elliott Forbes-Robinson (USA) |
Mazda 767B | Mazdaspeed | 559 | 5 | GTP | 10 | 1:41.937 | |
| 6 | 16 | Pete Halsmer (USA)
Bob Earl (USA) Mark Martin (USA) Paul Stewart (GB) Wally Dallenbach Jr (USA)* Dorsey Schroeder (USA)* |
Lincoln-Mercury Cougar XR-7 (Roush) | Jack Roush | 554 | 1 | GTO | 22 | 1:49.192 | |
| 7 | 11 | Wally Dallenbach Jr (USA)
Dorset Schroeder (USA) Mark Martin (USA) Pete Halsmer (USA)* Bob Earl (USA)* Paul Stewart (USA)* |
Lincoln-Mercury Cougar XR-7 (Roush) | Jack Roush | 534 | 2 | GTO | 25 | 1:52.389 | |
| 8 | 9 | Charles Morgan (USA)
John Morrison (GB) Thomas Hessert (USA) |
Tiga-Buick GT286 | Mike Gue | 530 | 1 | GTP Lights | 28 | 1:54.232 | |
| 9 | 92 | Bob Zeeb (USA)
Jeff Burner (USA) Bobby Akin Jr (USA) |
Lincoln-Mercury Capri (Roush) | Jack Roush | 530 | 3 | GTO | 33 | 1:56.080 | |
| 10 | 90 | Les Delano (USA)
Andy Petery (USA) Craig Carter (USA) Buzzy Smith (USA)* |
Lincoln-Mercury Capri (Roush) | Road Circuit Technology | 528 | 4 | GTO | 30 | 1:55.328 | |
| 11 | 38 | Roger Mandeville (USA)
Kelly Marsh (USA) Brian Redman (GB) Gary Drummond (USA)^ Don Marsh (USA)* |
Mazda RX-7 (Chassis Dynamics) | Roger Mandeville | 528 | 5 | GTO | 39 | 1:58.033 | |
| 12 | 17 | Al Bacon (USA)
Bob Reed (USA) Rod Millen (NZ) |
Mazda RX-7 (Chassis Dynamics) | Al Bacon | 526 | 1 | GTU | 47 | 2:01.248 | |
| NRF | 95 | Bob Leitzinger (USA)
Chuck Kurtz (USA) Butch Leitzinger (USA) Carson Baird (USA)* |
Nissan 240SX (Leitzinger) | Bob Leitzinger | 517 | timing belt | 2 | GTU | 53 | 2:02.551 |
| 14 | 71 | Amos Johnson (USA)
Dennis Shaw (USA) Bob Lazier (USA) Dan Robson (USA)^ |
Mazda RX-7 (Highball) | Amos Johnson | 516 | 3 | GTU | 54 | 2:02.602 | |
| 15 | 8 | Tim McAdam (USA)
Bill Adam (USA) Chip Mead (USA) Dan Pastorini (USA)^ |
Fabcar-Buick | Fabcar | 515 | 6 | GTP | 19 | 1:46.093 | |
| 16 | 89 | Jack Refenning (USA)
Rusty Scott (USA) Freddy Baker (USA) Peter Uria (USA) |
Porsche 911 Carrera RSR | Peter Uria | 511 | 4 | GTU | 60 | 2:05.239 | |
| 17 | 03 | Tommy Kendall (USA)
Max Jones (USA) Buz McCall (USA) Jack Baldwin (USA) |
Chevrolet Camaro (Peerless) | Buz McCall | 498 | 6 | GTO | 26 | 1:52.735 | |
| NRF | 64 | Bernard Jourdain (MEX)
Oscar Manautou (MEX) Allen Berg (CDN) Andres Contreras (MEX) Michel Jourdain (MEX)* |
Porsche 962 (Holbert) HR2 | Bernard Jourdain | 485 | fan belt | 7 | GTP | 11 | 1:42.715 |
| 19 | 62 | Terry Wolters (USA)
Peter Kraft (USA) Rusty Bond (USA) Alex Job (USA) |
Porsche 911 | Alex Job | 485 | 5 | GTU | 64 | 2:11.097 | |
| NRF | 10 | John Hotchkis Sr (USA)
Jim Adams (USA) John Hotchkis Jr (USA) |
Porsche 962 (Holbert-Fabcar) HR5/F02 | John Hotchkis Sr | 483 | gearbox | 8 | GTP | 21 | 9:03.594 |
| 21 | 82 | Dick Greer (USA)
Mike Mees (USA) John Finger (USA) |
Mazda RX-7 (Chassis Dynamics) | Dick Greer | 478 | 6 | GTU | 62 | 2:06.500 | |
| 22 | 40 | Martino Finotto (I)
Paolo Guaitamacchi (I) Uli Bieri (CDN) |
Tiga-Ferrari GT286 | Uli Bieri | 475 | 2 | GTP Lights | 32 | 1:55.902 | |
| 23 | 55 | Dan Marvin (USA)
Alan Freed (USA) Michael Allison (USA) Scott Leibler (USA) |
Spice-Pontiac Fiero GTP L | Joe Huffaker Jr | 471 | 3 | GTP Lights | 31 | 1:55.637 | |
| 24 | 5 | Jean-Pierre Frey (CH)
Marty Roth (CDN) Albert Naon Jr (USA) Lyn St James (USA)^ |
Ford Probe GTP (Zakspeed) | Tom Milner | 465 | 9 | GTP | 20 | no time | |
| 25 | 26 | David Cowart (USA)
Scott Brayton (USA) Mike Meyer (USA) Jim Fowells (USA) |
Argo-Mazda JM19 | MSB Racing | 460 | 4 | GTP Lights | 40 | 1:58.249 | |
| NRF | 4 | Linda Ludemann (USA)
Scott Schubot (USA) John Williams (GB) |
Spice-Buick SE88P | Schubot/Ludemann | 456 | engine | GTP Lights | 23 | 1:49.758 | |
| NRF | 83 | Arie Luyendyk (NL)
Chip Robinson (USA) Geoff Brabham (AUS) Michael Roe (IRL) Tommy Byrne (USA)* |
Nissan GTP-ZXT (Chapman) 01 | Don C. Devendorf | 453 | engine | GTP | 1 | 1:39.182 | |
| DNF | 33 | Costas Los (GR)
Dieter Quester (A) Jeff Kline (USA) John Paul Jr (USA)* |
Spice-Pontiac Firebird GTP 88.8002 | Spice Engineering USA | 427 | engine | GTP | 6 | 1:40.525 | |
| DNF | 09 | Steve Durst (USA)
Jay Cochran (USA) Michael Brockman (USA) Tony Belcher (USA) Mark Abel (USA)^ |
Spice-Buick SE88P | Durst/Brockman | 426 | differential | GTP | 17 | 1:44.629 | |
| DNF | 63 | Howard Katz (USA)
Jim Downing (USA) John O'Steen (USA) John Maffucci (USA) Don Nickerson (USA)^ |
Argo-Mazda JM19 | Jim Downing | 412 | engine | GTP Lights | 29 | 1:54.737 | |
| DNF | 43 | John Higgins (USA)
Lorenzo Lamas (USA) Buddy Lazier (USA) Justus Reid (USA) |
Fabcar-Porsche | John Higgins | 395 | engine | GTP Lights | 46 | 1:59.843 | |
| NC | 75 | Max Schmidt (USA)
Todd Brayton (USA) Rusty Schmidt (USA) Jack Engelhardt (USA) |
Lola-Badger Mazda BB | Jack Engelhardt | 391 | 8 | GTP Lights | 50 | 2:01.847 | |
| DNF | 35 | Craig A. Rubright (USA)
Jean-Paul Libert (B) Kermit Upton (USA) |
Chevrolet Camaro (Dillon) | Craig A. Rubright | 360 | engine | GTO | 45 | 1:59.045 | |
| DNF | 04 | Gary Auberlen (USA)
Bill Auberlen (USA) Cary Eisenlohr (USA) Monte Shelton (USA) |
Porsche 911 Carrera | Gary Auberlen | 351 | engine | GTU | 59 | 2:03.680 | |
| DNF | 05 | Tato Ferrer (PR)
Rolando Falgueras (PR) Manuel Villa Prieto (PR) Armando Gonzalez (PR) |
Royale-Porsche RP40 001 | Diman Racing | 349 | engine | GTP Lights | 48 | 2:01.360 | |
| DNF | 85 | Bruce Leven (USA)
Rob Dyson (USA) Dominic Dobson (USA) John Paul Jr (USA) |
Porsche 962 121 | Bruce Leven | 347 | engine | GTP | 15 | 1:43.405 | |
| DNF | 0 | Frank Jelinski (D)
Claude Ballot-Lena (F) Jean-Louis Ricci (F) |
Porsche 962C (Joest) 129 | Reinhold Joest | 346 | accident | GTP | 16 | 1:43.923 | |
| DNF | 87 | Lance Stewart (USA)
Ron Cortez (USA) Jeff Alkazian (USA) Chet Fillip (USA) John Overton (USA)^ |
Mazda RX-7 | John Overton | 344 | mechanical | GTU | 61 | 2:05.918 | |
| NC | 51 | Jack Boxstrom (USA)
Dale Kreider (USA) Mark Porcaro (USA) Carson Hurley (USA) Roy Newsome (USA)^ |
Buick Somerset (Riggins) | Dale Kreider | 341 | GTO | 52 | 2:02.468 | ||
| NC | 32 | Rick Moore (CDN)
Peter Baljet (CDN) Randy MacDonald (CDN) |
Buick Somerset | Gordon Oftedahl | 335 | GTO | 34 | 1:56.416 | ||
| DNF | 74 | George Robinson (USA)
Bart Kendall (USA) Johnny Unser (USA) |
Pontiac Fiero (Huffaker) | Joe Huffaker Jr | 323 | engine | GTU | 51 | 2:01.945 | |
| DNF | 91 | David Lacroix (USA)
David S. Seabrooke (CDN) Buzzy Smith (USA) Tommy Johnson (USA) |
Tiga-Mazda GT285 | Tommy Johnson | 310 | engine | GTP Lights | 49 | 2:01.521 | |
| DNF | 60 | Jan Lammers (NL)
Davy Jones (USA) Raul Boesel (BR) |
Jaguar XJR-9 (Advanced) | Tom Walkinshaw | 288 | engine | GTP | 2 | 1:39.855 | |
| DNF | 53 | Richard McDill (USA)
Robert Whitaker (USA) Bill McDill (USA) |
Chevrolet Camaro (Dillon) | Bill McDill | 287 | differential | GTO | 43 | 1:58.976 | |
| NC | 94 | Steve Burgner (USA)
Henry Brosnaham (USA) Ken Bupp (USA) Robert Peters (CDN) Richard J.Valentine (USA)^ Art Cross (USA)* |
Chevrolet Camaro (Frings) | Ken Bupp | 269 | GTO | 58 | 2:03.337 | ||
| DNF | 28 | Tony Adamowicz (USA)
Al Rocca (USA) Tomas Lopez Rocha (MEX) Aurelio Lopez (MEX) Carlos Bobeda (MEX)* |
Tiga-Mazda GT286 | carlos Bobeda | 266 | overheating | GTP Lights | 55 | 2:02.857 | |
| DNF | 68 | Mario Andretti (USA)
Michael Andretti (USA) |
Porsche 962 (Holbert-Fabcar) HR7 | Jim Busby | 237 | brakes | GTP | 9 | 1:41.381 | |
| DNF | 02 | Parker Johnstone (USA)
Frank E. Everett (USA) Ron Nelson (USA) |
Spice-Pontiac Firebird GTP L | Frank E. Everett | 229 | engine | GTP Lights | 38 | 1:57.270 | |
| DNF | 31 | Wayne Akers (USA)
Kent Pointer (USA) Ron Nelson (USA) David Donner (USA) Mark Montgomery (USA)^ Scott Lagasse (USA)* |
Chevrolet Camaro (Bemco) | Anthony Puleo | 217 | differential | GTO | 56 | 2:02.908 | |
| DNF | 98 | Drake Olson (ZA)
Chris Cord (USA) Steve Bren (USA) Willy T. Ribbs (USA)* Juan Manuel Fangio II (RA)* |
Toyota 88C (Dome) | Dan Gurney | 180 | overheating | GTP | 13 | 1:43.076 | |
| DNF | 88 | Tom Phillips (USA)
Steven Johnson (USA) Bob Lesnett (USA) |
Argo-Ferrari JM19B | Jeffrey von Braun | 165 | differential | GTP Lights | 41 | 1:58.257 | |
| DNF | 46 | Daniel Urrutia (USA)
Gene Whipp (USA) Gary Smith (USA) Jack Swanson (USA) Jim Craford (GB)* |
Chevrolet Camaro (Howe) | Daniel Urrutia | 160 | differential | GTO | 44 | 1:58.996 | |
| DNF | 07 | Tommy Riggins (USA)
Joe Varde (USA) Kal Showket (USA) Terry Earwood (USA)^ |
Dodge Daytona (Varde) | Joe Varde | 156 | engine | GTU | 57 | 2:03.324 | |
| DNF | 57 | Reed Kryder (USA)
Zoltan Polony (USA) Brian Goodwin (USA) J. Craig Shafer (USA) |
Nissan 300ZX (Kryderacing) | Reed Kryder | 142 | engine | GTU | 63 | 2:09.561 | |
| DNF | 6 | Tom Pumpelly (USA)
Ruggero Melgrati (I) Jack Baldwin (USA) David Loring (USA)^ |
Ford Probe GTP (Zakspeed) | Tom Milner | 117 | electrics | GTP | 18 | 1:44.870 | |
| DNF | 36 | John Grooms (USA)
John Fergus (USA) Frank Jellinek Jr (USA) Charles Monk (CDN)^ |
Argo-Mazda JM19 | Frank Jellinek Jr | 111 | accident | GTP Lights | 35 | 1:56.764 | |
| DNF | 47 | James Burt (USA)
Nort Northam (USA) Chaunce Wallace (USA) |
Chevrolet Camaro (Riggins) | Chaunce Williams | 111 | electrics | GTO | 67 | no time | |
| DNF | 27 | Scott Pruett (USA)
Jerry Clinton (USA) Les Lindley (USA) Paul Gentilozzi (USA)^ |
Oldsmobile Cutlass (Rocketsports) | Paul Gentilozzi | 101 | engine | GTO | 24 | 1:51.984 | |
| DNF | 20 | Fred Phillips (USA)
Ron McKay (USA) Randy Pobst (USA)^ Peter Welter (USA)* Bill Boye (USA)* |
Tiga-Mazda GT285 | Kennedy Groves | 92 | fuel system | GTP Lights | 37 | 1:57.242 | |
| DNF | 30 | Massimo Sigala (I)
Mauro Baldi (I) Gianpiero Moretti (I) Stanley Dickens (S)^ Frank Jelinski (D)* Jean-Pierre Frey (CH)* Gianfranco Brancatelli (I)* |
Porsche 962 (Shapiro) 001GS/BM03 | Moretti/Gebhardt | 80 | accident | GTP | 14 | 1:43.400 | |
| DNF | 84 | Michael Roe (IRL)
Geoff Brabham (AUS)^ Chip Robinson (USA)^ Arie Luyendyk (NL)^ Tommy Byrne (USA)* |
Nissan GTP-ZXT (Chapman) | Don C. Devendorf | 51 | withdrew | GTP | 3 | 1:39.908 | |
| DNF | 12 | Ken Bupp (USA)
Robert Peters (CDN) Del Russo Taylor (USA)^ Mark Montgomery (USA)^ Paul Goral (USA)^ Flip Groggins (USA)^ |
Pontiac Firebird (Python) | Del Russo Taylor | 50 | differential | GTO | 36 | 1:56.927 | |
| DNF | 29 | Oma Kimbrough (USA)
Robert Kahn (USA) Hoyt Overbagh (USA) Robert Siegal (USA)^ Robert Peters (CDN)^ |
Chevrolet Camaro (Stock Car Products) | Hoyt Overbagh | 37 | engine | GTO | 66 | no time | |
| DNF | 58 | Bill Bean (USA)
Michael Dow (USA) Gary Wonzer (USA) Jim Pace (USA)^ Bob Reed (USA)^ Bruce Westcott (USA)^ |
Lola-Mazda T616 | Gary Wonzer | 19 | engine | GTP Lights | 68 | no time | |
| DNF | 96 | Paul Reisman (USA)
Bob Hebert (USA)^ Tom Gaffney (USA)^ Doug Mills (USA)^ |
Chevrolet Camaro (Watson) | Paul Reisman | 4 | engine | GTO | 42 | 1:58.821 | |
| DNF | 72 | Jay Kjoller (USA)
Patrick Mooney (USA)^ Robin Boone (USA)^ Bob Dotson (USA)^ |
Porsche 911 | Jay Kjoller | 2 | clutch | GTU | 65 | 2:11.325 | |
| DNF | 66 | Derek Daly (IRL)
Martin Donnelly (GB)^ Patrick Tambay (F)^ |
Jaguar XJR-9 (Advanced) 188 | Tom Walkinshaw | 1 | accident | GTP | 8 | 1:40.884 | |
| DNF | 79 | Jim Rothbarth (USA)
Mike Ciasulli (USA)^ Kenper Miller (USA)^ Gene Felton (USA)^ |
Spice Pontiac-Cosworth Firebird GTP L | Roy Roach | 0 | fuel system | GTP Lights | 27 | 1:53.783 | |
| DNS | 7 | Lyn St James (USA)
David Loring (USA) Marty Roth (CDN) John Paul Jr (USA)* Tom Pumpelly (USA)* John Wood (USA)* Ruggero Melgrati (I)* |
Ford Probe GTP (Zakspeed) | Tom Milner | accident | GTP | 1:43.548 | |||
| DNA | 00 | Kal Showket (USA)
Neil Hanneman (USA) P.J.Jones (USA) |
Dodge Daytona (Showket) | Kal Showket | GTU | |||||
| DNA | 01 | Don Bell (USA)
George Wilkie (USA) Hendrick ten Cate (NL) |
Spice-Pontiac Firebird GTP L | Racecraft International | GTP Lights | |||||
| DNA | 99 | Willy T. Ribbs (USA)
Juan Manuel Fangio II (RA) Rocky Moran (USA) |
Eagle-Toyota HF89 | Dan Gurney | GTP | |||||
| DNA | 69 | Jaguar XJR-9 (Advanced) | Tom Walkinshaw | GTP |
| Winning Time: 24h01m39.925, 92.009 mph/148.073 kph |
| Fastest Lap: Jan Lammers #60 (Jaguar XJR-9), 1m42.342, 125.227 mph/201.533 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) |