| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 00 | Sarel van der Merwe (ZA)
Graham Duxbury (ZA) Tony Martin (ZA) |
March-Porsche 83G | Sarel van der Merwe | 640 | 1 | GTP | 2 | 1:52.905 | |
| 2 | 6 | A.J.Foyt (USA)
Bob Wollek (F) Derek Bell (GB) Preston Henn (USA)^ |
Porsche 935L Andial 002 | Preston Henn | 631 | 2 | GTP | 4 | 1:54.060 | |
| 3 | 44 | Doc Bundy (USA)
David Hobbs (USA) Bob Tullius (USA) Brian Redman (GB)* |
Jaguar XJR-5 Fabcar | Bob Tullius | 612 | 3 | GTP | 3 | 1:53.821 | |
| 4 | 86 | Al Holbert (USA)
Claude Ballot-Lena (F) Hurley Haywood (USA) Bruce Leven (USA) Kees Nierop (CDN)^ |
Porsche 935-80 | Bruce Leven | 604 | 4 | GTP | 14 | 2:00.027 | |
| 5 | 9 | Wayne Baker (USA)
Jim Mullen (USA) Tom Blackaller (USA) |
Porsche 935 009 0030 | Wayne Baker | 602 | 5 | GTP | 12 | 1:58.468 | |
| 6 | 4 | Billy Hagan (USA)
Terry Labonte (USA) Gene Felton (USA) |
Chevrolet Camaro Frings | Billy Hagan | 588 | 1 | GTO | 15 | 2:00.481 | |
| 7 | 29 | John C. Cooper (GB)
Bob Evans (GB) Paul Smith (GB) Edgar Doeren (D)* |
Nimrod-Aston Martin C2 005 | John C. Cooper | 587 | 6 | GTP | 26 | 2:05.682 | |
| 8 | 2 | Al Leon (USA)
Art Leon (USA) Terry Wolters (USA) |
March-Chevrolet 84G | Leon Brothers | 580 | 7 | GTP | 8 | 1:57.366 | |
| 9 | 63 | Jim Downing (USA)
John Maffucci (USA) Whitney Ganz (USA) John Paul Jr (USA)* |
Argo-Mazda JM16 | Jim Downing | 579 | 8 | GTP | 29 | 2:06.032 | |
| 10 | 09 | Ash Tisdelle (USA)
Lance Van Every (USA) |
Porsche 911 Carrera RSR | Lance Van Every | 579 | 2 | GTO | 58 | 2:14.045 | |
| 11 | 45 | John Morton (USA)
Bob Lobenberg (USA) Tony Garcia (USA) |
Lola-Chevrolet T600 HU/11 | Phil Conte | 578 | 9 | GTP | 10 | 1:57.596 | |
| 12 | 76 | Ira Young (USA)
Bob Reed (USA) Jack Baldwin (USA) Jim Cook (USA) |
Mazda RX-7 Fabcar | Ira Young | 574 | 1 | GTU | 47 | 2:12.649 | |
| 13 | 7 | Blake Pridgen (USA)
Rusty Bond (USA) Ren Tilton (USA) |
Porsche 911 | E.J.Pruitt | 571 | 2 | GTU | 73 | 2:18.696 | |
| 14 | 38 | Roger Mandeville (USA)
Amos Johnson (USA) Danny Smith (USA) |
Mazda RX-7 | Roger Mandeville | 569 | 3 | GTO | 37 | 2:09.601 | |
| 15 | 92 | Richard Attwood (GB)
Vic Elford (GB) Howad Meister (USA) Bob Hagestad (USA) |
Porsche 928S | Porsche | 569 | 4 | GTO | 72 | 2:18.362 | |
| 16 | 28 | Ray Mallock (GB)
Drake Olson (ZA) John Sheldon (GB) |
Nimrod-Aston Martin C2 | Ray Mallock | 562 | 10 | GTP | 7 | 1:56.825 | |
| 17 | 68 | Pete Halsmer (USA)
Dieter Quester (A) Ron Grable (USA) Rick Knoop (USA) |
Lola-Mazda T616 | Jim Busby | 562 | 11 | GTP | 28 | 2:05.909 | |
| 18 | 66 | Jack Dunham (USA)
Paul Lewis (USA) Jeff Kline (USA) |
Mazda RX-7 | Mike Meyer | 553 | 3 | GTU | 46 | 2:12.588 | |
| 19 | 24 | Bobby Hefner (USA)
Jack Griffin (USA) Hugo Gralia (USA) Ray Ratcliff (USA)* Wayne Pickering (USA)* |
Porsche 935 | Pegasus Racing | 547 | 12 | GTP | 20 | 2:02.679 | |
| 20 | 82 | Lee Mueller (USA)
John Casey (USA) Terry Visger (USA) |
Mazda RX-7 | Casey/Haggard | 542 | 4 | GTU | 44 | 2:11.902 | |
| 21 | 87 | Elliott Forbes-Robinson (USA)
John Schneider (USA) Ken Williams (USA) |
Porsche 924 | Bruce Leven | 529 | 5 | GTU | 43 | 2:11.839 | |
| 22 | 18 | Francisco Miguel (ES)
Albert Naon (USA) Diego Montoya (CO) Guillermo Valiente (ES) |
Sauber-BMW C7 | Francisco Miguel | 509 | 13 | GTP | 25 | 2:05.666 | |
| 23 | 55 | Richard Stevens (CDN)
Mark Brainard (USA) Don Herman (USA) |
Mazda RX-7 | Walt Preston | 494 | 6 | GTU | 81 | 2:26.084 | |
| 24 | 04 | Bill Adam (CDN)
Pat Bedard (USA) Brian Redman (GB) |
Jaguar XJR-5 Fabcar | Bob Tullius | 481 | 14 | GTP | 6 | 1:56.786 | |
| 25 | 43 | Paul Davey (USA)
Diego Montoya (CO) Brian Goellnicht (USA) |
BMW M1 | Walker/Brown | 477 | 5 | GTO | 39 | 2:10.230 | |
| 26 | 05 | Miguel Morejon (USA)
Fernando Garcia (USA) Tico Almeda (USA) |
Porsche 935 | Bill McDill | 470 | 15 | GTP | 24 | 2:05.504 | |
| 27 | 35 | Miguel Smith-Haas (USA)
Paul Gilgan (USA) John Zouleska (USA) Jack Griffin (USA)^ |
Porsche 911 Carrera RSR 460 9113 | George Drolsom | 463 | 6 | GTO | 77 | 2:20.389 | |
| DNF | 37 | Tom Burdsall (USA)
Nort Northam (USA) Peter Welter (USA) |
Mazda RX-7 | Vero Racing Associates | 433 | clutch | GTU | 63 | 2:16.078 | |
| NC | 03 | Herb Adams (USA)
Kim Mason (USA) Jerry Thompson (USA) |
Chevrolet Monza Mong | Kim Mason | 432 | GTP | 35 | 2:08.343 | ||
| DNF | 32 | Lew Price (USA)
George Alderman (USA) Carson Baird (USA) |
Datsun 280ZX | George Alderman | 409 | accident | GTU | 69 | 2:17.627 | |
| DNF | 67 | Jim Busby (USA)
Rick Knoop (USA) Boy Hayje (NL) |
Lola-Mazda T616 | Jim Busby | 391 | engine | GTP | 17 | 2:01.960 | |
| NC | 40 | Uli Bieri (CDN)
Angelo Pallavicini (CH) Matt Gysler (CDN) |
BMW M1 | Ili Bieri | 384 | GTO | 56 | 2:13.753 | ||
| NC | 01 | George Hulse (USA)
Pat Lott (USA) Jerry Kennedy (USA) Mike DeFontes (USA) |
Porsche 911 Carrera RSR | THR Foreign Car | 356 | GTO | 80 | 2:22.092 | ||
| DNF | 61 | Brent O'Neill (USA)
Don Courtney (USA) Luis Sereix (USA) |
Chevrolet Monza | Deco Sales Associates | 336 | GTO | 36 | 2:08.809 | ||
| DNF | 02 | William Gelles (USA)
Mike Brummer (USA) Steve Cohen (USA) Jim Helton (USA)^ |
Chevrolet Camaro Stock Car Products | Hoyt Overbagh | 330 | engine | GTO | 70 | 2:17.765 | |
| DNF | 17 | Al Bacon (USA)
Dennis Krueger (USA) Charles Guest (USA) |
Mazda RX-7 | Al Bacon | 326 | engine | GTU | 52 | 2:13.015 | |
| DNF | 27 | Jim Fowells (USA)
Steve Potter (USA) Ray Mummery (USA) |
Mazda RX-7 | Jim Fowells | 324 | engine | GTU | 82 | 2:26.770 | |
| NC | 77 | Gary Baker (USA)
Sterling Marlin (USA) |
Chevrolet Corvette | John Josey | 316 | GTO | 68 | 2:17.521 | ||
| DNF | 99 | Chris Cord (USA)
Jim Adams (USA) Wally Dallenbach Jr (USA)* Michael Changler (USA)* Dennis Aase (USA)* |
Toyota Celica | Dan Gurney | 292 | GTU | 55 | 2:13.562 | ||
| DNF | 22 | George Schwarz (CDN)
Craig Allen (CDN) Richard Spenard (CDN) |
Pontiac Firebird | Gordon Oftedahl | 290 | GTO | 19 | 2:02.657 | ||
| DNF | 46 | Paul Fassler (USA)
Frank Jellinek Jr (USA) Jerry Molnar (USA) |
Pontiac Firebird | Tycos Racing | 271 | engine | GTO | 41 | 2:10.576 | |
| DNF | 26 | Tom Nehl (USA)
Jerry Hansen (USA) Nelson Silcox (USA) |
Chevrolet Corvette | Zabatt | 270 | differential | GTO | 31 | 2:07.048 | |
| DNF | 90 | Mike H. Schaefer (USA)
Jeff Andretti (USA) Nick Nicholson (USA) Jack Refenning (USA) |
Porsche 911 | Peter Uria | 258 | GTU | 78 | 2:21.138 | ||
| DNF | 53 | Robert Overby (USA)
Don Bell (USA) Charles Pelz (USA) Charles Kleinschmidt (USA)^ Dave Watson (USA)* |
Pontiac Firebird | Daytona Racing | 245 | engine | GTO | 32 | 2:07.137 | |
| DNF | 75 | Bob Young (USA)
Joe Varde (USA) Bob Gregg (USA) |
Chevrolet Camaro | Bob Gregg | 245 | electrics | GTO | 33 | 2:07.308 | |
| DNF | 41 | Rusty Schmidt (USA)
Scott Schmidt (USA) Max Schmidt (USA) |
Chevrolet Corvette | Starved Rock Lodge | 245 | GTO | 59 | 2:14.114 | ||
| DNF | 97 | Steve Shelton (USA)
Tom Shelton (USA) Claude Ballot-Lena (F)^ |
Ferrari 512BB 31589 | Warren Mosler | 242 | GTP | 27 | 2:05.875 | ||
| DNF | 79 | Bob Bergstrom (USA)
Innes Ireland (GB) Tom Winters (USA) |
Porsche 924 Carrera | Paul Gentilozzi | 236 | GTU | 42 | 2:11.083 | ||
| DNF | 19 | Jack Miller (USA)
Carlos Ramirez (USA) Vicki Smith (USA) |
Nimrod-Aston Martin C2 | Performance Motorcar | 235 | GTP | 23 | 2:05.392 | ||
| DNF | 11 | Joe Ruttman (USA)
Mike Laws (USA) Don Schoenfeld (USA) Tim Richmond (USA) |
Chevrolet Camaro Dillon | Ray Dillon | 227 | accident | GTP | 18 | 2:02.481 | |
| DNF | 8 | Jack Lewis (USA)
Bob Beasley (USA) John Ashfield (USA) |
Porsche 911 Carrera RSR | Rennsport Enterprise | 220 | GTO | 67 | 2:16.506 | ||
| DNF | 51 | Chris Wilder (USA)
Dennis DeFranchesci (USA) Buz McCall (USA)^ |
Porsche 911 | Chris Wilder | 212 | GTU | 66 | 2:16.439 | ||
| NC | 54 | Bruce Redding (USA)
H. J. Long (USA) Bob Coperman (USA) Jerry Jolly (USA) |
Porsche 911 Carrera RSR | Bob Coperman | 197 | GTO | 74 | 2:18.834 | ||
| DNF | 70 | Dave Weitzenhof (USA)
David Loring (USA) Pierre Honegger (USA) |
Mazda GTP Rosemont | Pierre Honegger | 187 | accident | GTP | 38 | 2:09.644 | |
| DNF | 3 | Ken Madren (USA)
Wayne Pickering (USA) Marion L. Speer (USA) |
March-Buick 84G | Pegasus Racing | 186 | GTP | 13 | 1:59.282 | ||
| DNF | 5 | Bob Akin (USA)
John O'Steen (USA) Bobby Rahal (USA) |
Porsche 935-84 Fabcar | Bob Akin | 181 | body | GTP | 9 | 1:57.586 | |
| DNF | 85 | Kikos Fonseca (CR)
Carlos Fallas (CR) Enrique Molins (ES) |
Porsche 911 Carrera RSR | Latino Raicng | 179 | GTO | 62 | 2:15.362 | ||
| DNF | 10 | James Kendall (USA)
Bill Johnson (USA) Dave White (USA) |
Porsche 924 | Dave White | 162 | GTU | 57 | 2:13.900 | ||
| DNF | 60 | Jim Cook (USA)
Tommy Morrison (USA) Tony Swan (USA) |
Mazda RX-7 | Tommy Morrison | 162 | GTU | 71 | 2:17.779 | ||
| DNF | 39 | Roy Newsome (USA)
Bobby Diehl (USA) Dale Kreider (USA) Luis Sereix (USA) |
Chevrolet Corvette | Dale Kreider | 157 | GTO | 75 | 2:18.939 | ||
| DNF | 73 | Clark Howey (USA)
David Crabtree (USA) Tracy Wolf (USA) |
Chevrolet Camaro | Clark Howey | 150 | GTO | 49 | 2:12.781 | ||
| DNF | 47 | Walt Bohren (USA)
Billy Dingman (USA) Roger Bighouse (USA) |
Chevrolet Corvette | Billy Dingman | 135 | GTO | 34 | 2:08.086 | ||
| DNF | 16 | Randy Lanier (USA)
Marty Hinze (USA) Bill Whittington (USA) |
March-Chevrolet 83G | Marty Hinze | 131 | gearbox | GTP | 5 | 1:54.762 | |
| DNF | 93 | Kelly Marsh (USA)
Don Marsh (USA) Ron Pawley (USA) |
Mazda RX-7 | Mid-Ohio | 129 | engine | GTU | 64 | 2:16.099 | |
| DNF | 57 | Diego Febles (PR)
Tato Ferrer (PR) |
Porsche 911 Carrera RSR | Diego Febles | 127 | GTO | 45 | 2:12.088 | ||
| DNF | 1 | Mario Andretti (USA)
Michael Andretti (USA) |
Porsche 862 001 | Porsche | 127 | GTP | 1 | 1:50.989 | ||
| DNF | 72 | Tommy Riggins (USA)
Les Delano (USA) Andy Petery (USA) |
Chevrolet Camaro | Centurion Auto Transport | 126 | GTO | 21 | 2:03.744 | ||
| DNF | 21 | Mike Field (USA)
Jack Newsum (USA) Rob McFarlin (USA) |
Pontiac Firebird | Gordon Oftedahl | 118 | GTO | 40 | 2:10.511 | ||
| DNF | 58 | Jim Trueman (USA)
Deborah Gregg (USA) Alfredo Mena (ES) |
Porsche 924 | Ed Salvador Racing | 110 | GTU | 48 | 2:12.777 | ||
| DNF | 07 | Ludwig Heimrath (CDN)
Ludwig Heimrath Jr (CDN) |
Porsche 930 | Ludwig Heimrath | 90 | GTP | 22 | 2:03.867 | ||
| DNF | 49 | Mitch Bender (USA)
Bard Boand (USA) Brian Utt (USA) Phil Currin (USA) |
Chevrolet Corvette Dillon | Bard Boand | 66 | suspension | GTO | 30 | 2:06.386 | |
| DNF | 20 | Paul Canary (USA)
Jim Sanborn (USA) Victor Gonzalez (USA) |
Chevrolet Corvette | Paul Canary | 64 | GTO | 50 | 2:12.919 | ||
| DNF | 25T | David Cowart (USA)
Kenper Miller (USA) Mauricio de Narvaez (CO) |
March-Chevrolet 84G | David Cowart | 60 | accident | GTP | 16 | no time | |
| DNF | 94 | Bill Gardner (USA)
Ronnie Sanders (USA) James Durovy (USA) |
Pontiac Firebird | Tangent Racing | 52 | GTO | 54 | 2:13.516 | ||
| DNF | 88 | Ken Murray (USA)
Richard J. Valentine (USA) Bob Barnett (USA) |
Chevrolet Camaro Riggins | Motorsport Marketing | 51 | gearbox | GTO | 51 | 2:12.980 | |
| DNF | 98 | Wally Dallenbach Jr (USA)
Michael Chandler (USA) Dennis Aase (USA) Chris Cord (USA)* Jim Adams (USA)* |
Toyota Celica | Dan Gurney | 49 | engine | GTU | 60 | 2:14.664 | |
| DNF | 91 | Del Russo Taylor (USA)
Larry Figaro (USA) Enrique Novella (GUA)^ Jose Iturbide (GUA)* |
Pontiac Firebird Pythin | Walter Johnston | 38 | GTO | 61 | 2:14.114 | ||
| DNF | 33 | Karl Keck (USA)
Bill Wessel (USA) Alan Chastain (USA) Bill McDill (USA)* |
Chevrolet Corvette Pratt | Karl Keck | 38 | GTO | 65 | 2:16.384 | ||
| DNF | 15 | John Kalagian (USA)
John Lloyd (USA)^ John Mills (USA)^ |
Lola-Chevrolet T600 | John Kalagian | 27 | axle | GTP | 11 | 1:57.960 | |
| DNF | 23 | Frank Carney (USA)
Dick Davenport (USA)^ Bob Hindson (USA)^ |
Datsun 200SX | Frank Carney | 25 | suspension | GTU | 76 | 2:19.431 | |
| DNF | 84 | Clay Young (USA)
Douglas Grunnet (USA)^ James Burt (USA)^ |
Pontiac Fiero Huffaker | Clay Young | 19 | engine | GTU | 53 | 2:13.438 | |
| DNF | 13 | Frank Rubino (USA)
Joe Rodriguez (USA) Dennis Vitolo (USA) |
Mazda RX-7 Chassis Dynamics | Frank Rubino | 17 | engine | GTU | 79 | 2:21.496 | |
| DNQ | 69 | John Hofstra (USA)
George R. Shafer (USA) Peter Uria (USA) |
Porsche 911 | John Hofstra | GTU | 2:29.060 | ||||
| DNQ | 81 | John Saucier (USA)
Ronnie Franklin (USA) Chuck Gravel (USA) |
Datsun Z | GTU | 2:30.397 | |||||
| DNQ | 42 | Robin Boone (USA)
H.J.Long (USA) Rich Bontempi (USA) Ken Moore (USA)* |
Porsche 911 | Rich Bontempi | GTU | 2:31.500 | ||||
| DNQ | 83 | Michael Gassaway (USA)
Steve Pfeifer (USA) Bob Tayar (USA) Scott Smith Jr (USA)* |
Chevrolet Camaro Oftedahl | Michael Gassaway | GTO | 2:32.617 | ||||
| DNS | 25 | David Cowart (USA)
Kenper Miller (USA) Mauricio de Narvaez (CO) |
March-Porsche 84G | David Cowart | accident | GTP | 2:01.762 | |||
| DNA | 0 | Ron Case (USA)
Craig Case (USA) |
Porsche 911 | Ron Case | GTU | |||||
| DNA | 12 | Werner Frank (USA)
Piercarlo Ghinzani (I) Corrado Fabi (I) |
Osella-BMW PA10 | Enzo Osella | GTP | |||||
| DNA | 14 | Paul Goral (USA) | Porsche 935 | Paul Goral | GTP | |||||
| DNA | 30 | Vincent P. Collins (USA)
Bill Nelson (USA) Lojza Vosta (USA) |
Chevrolet Corvette | Vincent P. Collins | GTO | |||||
| DNA | 31 | Don Cummings (USA)
Greg Walker (USA) Craig A. Rubright (USA) |
Chevrolet Corvette Linderfer | Don Cummings | GTO | |||||
| DNA | 34 | George Drolsom (USA) | Porsche 924 Carrera | George Drolsom | GTU | |||||
| DNA | 36 | Michael Duncan (USA)
Scott Shadel (USA) |
Chevrolet Camaro | D.H.Thomas | GTO | |||||
| DNA | 48 | Gary Wonzer (USA)
Larry Figaro (USA) Jerry Kennedy (USA) |
Porsche 911 | Gary Wonzer | GTU | |||||
| DNA | 50 | Ray McIntyre (USA)
John Martin (USA) Dominic Dobson (USA) Andy Robinson (USA) George Reece (USA) |
Chevrolet Corvette | Racing Systems | GTO | |||||
| DNA | 64 | John E. Hulen (USA)
Ron Coupland (USA) Dan Hartill (USA) |
Porsche 911 Carrera RSR | John E. Hulen | GTO | |||||
| DNA | 71 | Charles Morgan (USA)
Jim Miller (USA) Robert Overby (USA) |
Argo-Buick JM16 102 | Charles Morgan | GTP | |||||
| DNA | 74 | Richard McDill (USA)
Tom Juckette (USA) Gary English (USA) |
Chevrolet Camaro Dillon | Bill McDill | GTO | |||||
| DNA | 96 | Robert Gottfried (USA)
Donald Flores (USA) Mike Cue (USA) |
Porsche 935 | Donald Flores | GTP |
| Winning Time: 24h01m07.530, 98.781 mph/158.972 kph |
| Fastest Lap: Brian Redman #04 (Jaguar XJR-5), 1m57.364, 118.708 mph/191.041 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) |