| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 14 | Al Holbert (USA)
Derek Bell (GB) Al Unser Jr (USA) |
Porsche 962 103 | Al Holbert | 712 | 24h01m45.800 | 1 | GTP | 9 | 1:43.190 |
| 2 | 8 | A.J.Foyt (USA)
Arie Luyendyk (NL) Danny Sullivan (USA) Preston Henn (USA) |
Porsche 962 104 | Preston Henn | 712 | 24h03m34.950 | 2 | GTP | 14 | 1:44.998 |
| 3 | 67 | Derek Warwick (GB)
Darin Brassfield (USA) Jim Busby (USA) Jochen Mass (D) |
Porsche 962 106 | Jim Busby | 711 | 3 | GTP | 6 | 1:42.329 | |
| 4 | 64 | Lee Mueller (D)
Maurice Hassey (USA) Lanny Hester (USA) |
Ford Mustang (Roush) | Raintree Corporation | 622 | 1 | GTO | 35 | 1:57.473 | |
| 5 | 07 | Scott Pruett (USA)
Bruce Jenner (USA) Klaus Ludwig (D) |
Ford Mustang (Roush) | Jack Roush | 614 | 2 | GTO | 17 | 1:49.709 | |
| 6 | 44 | Bob Tullius (USA)
Claude Ballot-Lena (F) Chip Robinson (USA) |
Jaguar XJR-7 (Fabcar) | Bob Tullius | 607 | 4 | GTP | 10 | 1:43.953 | |
| 7 | 13 | Frank Rubino (USA)
Ray Mummery (USA) John Schneider (USA) |
Argo-Mazda JM19 | Frank Rubino | 600 | 1 | GTP Lights | 45 | 2:00.837 | |
| 8 | 71 | Amos Johnson (USA)
Dennis Shaw (USA) Jack Dunham (USA) |
Mazda RX-7 (Highball) | Amos Johnson | 597 | 1 | GTU | 51 | 2:02.271 | |
| 9 | 35 | Armando Gonzalez (PR)
Ernesto Soto (YV) Basilio Davila (PR) Diego Febles (PR)* Chris Marte (DR)* |
Royale-Porsche RP40 | Diman Racing | 579 | 2 | GTP Lights | 63 | 2:09.589 | |
| NRF | 75 | Bob Reed (USA)
Tommy Kendall (USA) John Hogdal (USA) Keith Rinzler (USA)^ |
Mazda RX-7 (Fabcar) | Clayton Cunningham | 563 | engine | 2 | GTU | 50 | 2:02.069 |
| 11 | 32 | Bob Leitzinger (USA)
Mike Carder (USA) Louis Baldwin (USA) Steve Alexander (USA) |
Nissan 280ZX | George Alderman | 537 | 3 | GTU | 59 | 2:06.265 | |
| NRF | 68 | Jan Lammers (NL)
John Morton (USA) Derek Warwick (GB) Jochen Mass (D)^ Darin Brassfield (USA)* |
Porsche 962 105 | Jim Busby | 512 | accident | 5 | GTP | 7 | 1:42.581 |
| 13 | 34 | Kikos Fonseca (CR)
Luis Mendez (DR) Enrique Molins (ES) |
Porsche 934 | Latino Racing | 512 | 3 | GTO | 66 | 3:20.512 | |
| 14 | 27 | David Cowart (USA)
Kenper Miller (USA) Jim Fowells (USA) |
Argo-Mazda JM19 | MSB Racing | 511 | 3 | GTP Lights | 68 | no time | |
| NRF | 76 | Nort Northam (USA)
Greg Walker (USA) Craig A. Rubright (USA) |
Chevrolet Corvette (Linderfer) | Greg Walker | 506 | engine | GTO | 43 | 1:59.848 | |
| NC | 98 | Dennis Aase (USA)
Chris Cird (USA) |
Toyota Celica (AAR) | Dan Gurney | 489 | 5 | GTO | 22 | 1:52.626 | |
| DNF | 93 | Ron Pawley (USA)
Don Marsh (USA) Kelly Marsh (USA) |
Argo-Mazda JM16 | Don Marsh | 482 | engine | GTP Lights | 41 | 1:59.537 | |
| NC | 17 | Al Bacon (USA)
Bill Scott (USA) Dennis Krueger (USA) |
Mazda RX-7 (Chassis Dynamics) | Al Bacon | 482 | 4 | GTU | 54 | 2:02.932 | |
| DNF | 66 | Jim Rothbarth (USA)
Jeff Kline (USA) Mike Meyer (USA) |
Argo-Mazda JM16 | Mike Meyer | 477 | gearbox | GTP Lights | 33 | 1:57.152 | |
| NC | 55 | David Heinz (USA)
Steve Zwiren (USA) Don Yenko (USA) Jerry Thompson (USA) |
Chevrolet Corvette (Dillon) | David Heinz | 472 | 6 | GTO | 36 | 1:57.717 | |
| DNF | 02 | Richard Stevens (CDN)
Luis Sereix (USA) Roy Newsome (USA) Dale Kreider (USA) |
Mazda RX-7 (Chassis Dynamics) | Roy Newsome | 453 | gearbox | GTU | 62 | 2:09.254 | |
| NC | 47 | Steve Millen (NZ)
Elliott Forbes-Robinson (USA) Tommy Riggins (USA) |
Pontiac Firebird | Billy Dingman | 438 | 7 | GTO | 18 | 1:50.754 | |
| DNF | 72 | Bob Bergstrom (USA)
Gene Felton (USA) Paul Gentilozzi (USA) |
Oldsmobile Toronado (Rocketsports) | Paul Gentilozzi | 434 | engine | GTO | 25 | 1:53.395 | |
| DNF | 04 | Brian Redman (GB)
Vern Schuppan (AUS) Hurley Haywood (USA) |
Jaguar XJR-7 (Fabcar) | Bob Tullius | 430 | engine | GTP | 13 | 1:44.707 | |
| DNF | 01 | Don Bell (USA)
Terry Wolters (USA) Craig Carter (USA) |
Royale-Buicl RP40 | AT&T | 406 | engine | GTP Lights | 31 | 1:56.551 | |
| DNF | 00 | Jim Adams (USA)
Costas Los (GR) John Hotchkis Sr (USA) |
March-Porsche 83G | John Hotchkis Sr | 402 | gearbox | GTP | 20 | 1:51.544 | |
| DNF | 62 | Tim CoConis (USA)
Fernando Robles (DR) Chris Marte (DR) |
Ford Mustang (Roush) | Jack Roush | 368 | GTO | 29 | 1:54.979 | ||
| DNF | 88 | Jack Baldwin (USA)
Bob McConnell (USA) Tommy Morrison (USA) Don Knowles (USA) Bobby Carradine (USA)^ |
Chevrolet Corvette | Tommy Morrison | 365 | gearbox | GTO | 48 | 2:01.928 | |
| NC | 82 | Bill Wessel (USA)
Mark Kennedy (USA) Dave Fuller (USA) Karl Keck (USA) |
Chevrolet Corvette (Pratt) | Karl Keck | 340 | GTP | 39 | 1:59.150 | ||
| DNF | 87 | Ron Grable (USA)
Dan Knowles (USA) John Heinricy (USA) Bobby Carrdine (USA) |
Chevrolet Corvette | Tommy Morrison | 331 | gearbox | GTO | 46 | 2:01.403 | |
| DNF | 29 | Oma Kimbrough (USA)
Chris Gennone (USA) Hoyt Overbagh (USA) Peter Baljet (CDN) |
Chevrolet Camaro (Stock Car Products) | Hoyt Overbagh | 328 | electrics | GTO | 57 | 2:05.553 | |
| DNF | 16 | Drake Olson (ZA)
Price Cobb (USA) Rob Dyson (USA) |
Porsche 962 101 | Rob Dyson | 320 | engine | GTP | 3 | 1:40.904 | |
| DNF | 45 | John Paul Jr (USA)
Chip Ganassi (USA) Ivan Capelli (I) Whitney Ganz (USA) |
March-Buick 85G Hawk | Phil Conte | 310 | engine | GTP | 11 | 1:44.386 | |
| DNF | 83 | Paul Reisman (USA)
Bob Hebert (USA) Tom Goffney (USA) Richard Stone (USA) |
Pontiac Firebird (Watson) | Charlie Gibson | 296 | engine | GTO | 53 | 2:02.538 | |
| DNF | 80 | Martino Finotto (I)
Ruggero Melgrati (I) Almo Coppelli (I) Carlo Facetti (I)^ |
Alba-Ferrari AR6 | Carma FF | 291 | engine | GTP Lights | 23 | 1:53.167 | |
| DNF | 30 | Buz McCall (USA)
Pancho Carter (USA) Jim Mueller (USA) Tom Sheehy (USA) |
Chevrolet Camaro (Timmons) | Buz McCall | 285 | electrics | GTO | 49 | 2:01.964 | |
| DNF | 6 | Charles Morgan (USA)
Logan Blackburn (USA) David Simpson (USA) |
Tiga-Buick GTP286 321 | Charles Morgan | 279 | gearbox | GTP Lights | 30 | 1:55.572 | |
| DNF | 33 | Bard Boand (USA)
Richard Anderson (USA) Mike Allen (USA) |
Lola-Chevrolet T600 | Bard Boand | 266 | gearbox | GTP | 21 | 1:51.584 | |
| DNF | 99 | David Andrews (GB)
Steve Phillips (USA) Duncan Bain (GB) Nick Nicholson (USA)* |
Tiga-Ford GT285 | Roy Baker | 244 | engine | GTP | 70 | no time | |
| DNF | 50 | Bill Elliott (USA)
Ricky Rudd (USA) Kyle Petty (USA) Ken Schraeder (USA) |
Ford Mustang (Roush) | Jack Roush | 240 | accident | GTO | 24 | 1:53.262 | |
| DNF | 56 | Diego Montoya (CO)
Albert Naon Jr (USA) Carlos Migoya (USA) Ricardo Londono (CO)* |
Pontiac Firebird | Ricardo Londono | 238 | steering | GTO | 61 | 2:08.775 | |
| DNF | 38 | Roger Mandeville (USA)
Danny Smith (USA) Diego Febles (PR) |
Mazda RX-7 (Chassis Dynamics) | Roger Mandeville | 229 | electrics | GTU | 47 | 2:01.438 | |
| DNF | 78 | Peter Uria (USA)
Larry Figaro (USA) Jack Refenning (USA) |
Porsche 911 Carrera RSR | Peter Uria | 203 | gearbox | GTU | 60 | 2:06.970 | |
| DNF | 26 | Ken Bupp (USA)
John Hayes-Harlow (GB) Del Russo Taylor (USA) Bob Lee (USA)* |
Pontiac Firebird (Python) | Walter Johnston | 195 | axle | GTO | 44 | 1:59.869 | |
| DNF | 63 | Jim Downing (USA)
John O'Steen (USA) John Maffucci (USA) |
Argo-Mazda JM19 | Jim Downing | 184 | electrics | GTP Lights | 69 | no time | |
| DNF | 3 | Thierry Boutsen (B)
Oscar Larrauri (RA) Massimo Sigala (I)^ |
Porsche 962 128 | Walter Brun | 176 | electrics | GTP | 8 | 1:42.790 | |
| DNF | 9 | Michael Brockman (USA)
Steve Dust (USA) Deborah Gregg (USA) Jim Trueman (USA) |
Tiga-Mazda GTP285 | Rinzler Motoracing | 156 | engine | GTP Lights | 28 | 1:54.497 | |
| DNF | 77 | Leo Franchi (USA)
Steve Gentile (USA) Rick Knoop (SA) Jack Newsum (USA)^ |
Ford Thunderbird | Brooks Fryberger | 150 | gearbox | GTO | 42 | 1:59.583 | |
| DNF | 10 | Jim Leeward (USA)
Bill Adam (CDN) Chip Mead (USA) Emory Donaldson (USA)* |
March-Chevrolet 82G | Jimm Leeward | 123 | gearbox | GTP | 16 | 1:48.963 | |
| DNF | 2 | Al Leon (USA)
Jim Fitzgerald (USA) Harald Grohs (D) Art Leon (USA)^ |
March-Porsche 85G | Leon Brothers | 117 | engine | GTP | 15 | 1:48.258 | |
| DNF | 54 | Karl Durkheimer (USA)
Gary Auberlen (USA) Cory Eisenlohr (USA) Peter Jauker (USA) |
Porsche 911 | Gary Auberlen | 117 | accident | GTU | 67 | 2:12.212 | |
| DNF | 86 | Bob Wollek (F)
Derek Daly (IRL) Bruce Leven (USA) |
Porsche 962 (Holbert) HR2 | Bruce Leven | 116 | accident | GTP | 2 | 1:39.854 | |
| DNF | 4 | Lew Price (USA)
Jim Mullen (USA) Matt Whetstine (USA) Carson Baird (USA)* |
Chevrolet Corvette GTP-T711 (Lola) HU/02 | Lew Price | 104 | suspension | GTP | 19 | 1:51.133 | |
| DNF | 89 | Tom Hunt (USA)
Jim Shelton (USA) Paul Romano (USA) Russ Boy (USA)^ |
Mazda RX-7 | Tom Hunt | 85 | engine | GTU | 64 | 2:10.899 | |
| DNF | 06 | Miguel Morejon (USA)
Joe Varde (USA) Tico Almeida (USA) Gabriele Riano (USA)* |
Porsche 935 | Bill McDill | 83 | oil leak | GTP | 38 | 1:58.427 | |
| DNF | 43 | Steve Cohen (USA)
David Christian (USA) Tom Congleton (USA) |
BMW M1 | Global Racing | 68 | accident | GTO | 32 | 1:57.126 | |
| DNF | 90 | Les Delano (USA)
Andy Petery (USA) Patty Moise (USA)* |
Pontiac Firebird | Road Circuit Technology | 67 | engine | GTO | 34 | 1:57.156 | |
| DNF | 37 | Peter Welter (USA)
Roy Newsome (USA) Tom Burdsall (USA) |
Tiga-Mazda GT285 | Burdsall/Newsome | 66 | engine | GTP Lights | 37 | 1:58.303 | |
| DNF | 36 | Dave Panaccione (USA)
Ron Case (USA)^ |
Porsche 924 | Ron Case | 65 | engine | GTU | 56 | 2:04.643 | |
| DNF | 11 | Paul Lewis (USA)
Chuck Kendall (USA)^ Tommy Kendall (USA)^ Max Jones (USA)^ |
Lola-Mazda T616 | Chuck Kendall | 48 | engine | GTP Lights | 58 | 2:03.621 | |
| DNF | 25 | Robert Peters (CDN)
Kent Pointer (USA)^ Tom Nehl (USA)^ Scott Gaylord (USA)^ |
Chevrolet Camaro (Riggins) | Lucas Truck Service | 37 | electrics | GTO | 55 | 2:04.552 | |
| DNF | 5 | Hans-Joachim Stuck Jr (D)
Bob Akin (USA)^ Jo Gartner (A)^ |
Porsche 962 113 | Bob Akin | 29 | accident | GTP | 5 | 1:42.279 | |
| DNF | 46 | Whitney Ganz (USA)
Ken Madren (USA) Bob Lobenberg (USA)^ |
March-Buick 85G Hawk | Phil Conte | 27 | gearbox | GTP | 12 | 1:44.621 | |
| DNF | 0 | Paolo Barilla (I)
Randy Lanier (USA)^ Gianpiero Moretti (I)^ |
Porsche 962 116IM | Reinhold Joest | 6 | electrics | GTP | 4 | 1:42.248 | |
| DNF | 92 | Ash Tisdelle (USA)
Lance Van Every (USA)^ Rusty Bond (USA)^ |
Chevrolet Camaro (Riggins) | Lance Van Every | 6 | GTO | 40 | 1:59.213 | ||
| DNF | 28 | Terry Labonte (USA)
Harry Gant (USA)^ Phil Parsons (USA)^ |
Oldsmobile Calais | Texas Enterprises | 3 | engine | GTO | 26 | 1:53.615 | |
| DNS | 52 | Sarel van der Merwe (ZA)
Doc Bundy (USA) Wally Dallenbach Jr (USA) |
Chevrolet Corvette GTP-T710 (Lola) HU/01 | Rick Hendrick | engine | GTP | 1 | 1:39.318 | ||
| DNS | 48 | Don Walker (USA)
Brian Goellnicht (USA) Charles Monk (CDN) |
March-Chevrolet 85G | Don Walker | GTP | 27 | 1:53.642 | |||
| DNS | 74 | Bill McDill (USA)
Richard McDill (USA) Tom Juckette (USA) |
Chevrolet Camaro (Dillon) | Bill McDill | GTO | 52 | 2:02.406 | |||
| DNS | 57 | Reed Kryder (USA)
Tom Palmer (USA) Fred Staffilino (USA) Rod Whelan (USA) |
Nissan 280ZX (Kryderacing) | Reed Kryder | GTU | 65 | 2:11.749 | |||
| DNP | 18 | Davy Jones (USA)
John Andretti (USA) Dieter Quester (A) |
BMW 86G (March) | BMW North America | GTP | |||||
| DNP | 19 | John Watson (GB)
David Hobbs (GB) Bobby Rahal (USA) |
BMW 85G (March) | BMW North America | GTP | |||||
| DNA | 21 | Ron Nelson (USA)
Dominic Dobson (USA) Howard Siegel (USA) |
Tiga-Porsche GTP286 325 | Howard Siegel | GTP Lights | |||||
| DNA | 22 | Harold Shafer (USA) | Buick Somerset | Centurion Auto Transport | GTO | |||||
| DNA | 49 | Christian Jacobs (USA)
Albert Naon Jr (USA) Rudy Diaz (USA) |
Porsche 911 | Conrad Racing | GTU | |||||
| DNA | 53 | John McComb (USA)
Rick Mancuso (USA) |
March-Chevrolet 84G | Warren Mosler | GTP | |||||
| DNA | 79 | Steve McKitterick (USA)
Tom Winters (USA) William Koll (USA) |
Alba-Chevrolet AR3 | Paul Gentilozzi | GTP Lights | |||||
| DNA | 69 | Steve Alexander (USA)
Mike Carder (USA) Ebbie Lunken (USA) |
Royale Ford-Cosworth RP40 | Mouserosa | GTP Lights | |||||
| DNA | 81 | Paul Romano (USA) | Mazda RX-7 | Simms/Romano | GTU | |||||
| DNA | 97 | Allen Glick (USA)
Innes Ireland (GB) Billy Scyphers (USA) |
Chevrolet Camaro (Peerless) | Billy Scyphers | GTO |
| Winning Time: 24h01m45.800, 105.484 mph/169.760 kph |
| Fastest Lap: John Paul Jr #45 (March-Buick 95G Hawk), 1m42.519, 125.011 mph/201.185 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) |