| 1st | 2 | John Fitzpatrick / Bob Wollek | Porsche 935/78-81 | John Fitzpatrick Racing |
| 2nd | 0 | Danny Ongais | Lola T600 Chevrolet Turbo | Interscope Racing |
| 3rd | 1 | John Paul, Jr. | Porsche 935 JLP-4 | JLP Racing |
| 4th | 10 | Jim Trueman | March 83G Chevrolet | Ken Murray |
| 5th | 6 | Al Holbert / Doc Bundy / Preston Henn | Porsche 935 L | |
| 6th | 46 | Mauricio DeNarvaez | Porsche 935 JLP-3 | JLP Racing |
| 7th | 22 | David Hobbs | Porsche 935 K4 | John Fitzpatrick Racing |
| 8th | 9 | Doc Bundy / Bonnie Henn | Porsche 935 | |
| 9th | 3 | Don Whittington / Fred Stiff | Grid Plaza S1 Ford | GRID Racing |
| 10th | 09 | Derek Bell / Randy Lanier | Porsche 935 K3 | Henn's Swap Shop |
| 11th | 13 | John Greenwood | Chevrolet Corvette | T & R Racing |
| 12th | 44P | Bob Tullius | Jaguar XJR-5 | Group 44 |
| 13th | 39 | John Gunn | Phoenix JG1 Chevrolet | |
| 14th | 25 | Dave Cowart / Kenper Miller | March 82G BMW | Red Lobster Racing |
| 15th | 00 | Ted Field / Danny Ongais | Lola T600 Chevrolet | Interscope Racing |
| 16th | 14 | Bob Raub / Bob Lazier | Pontiac Firebird | Oftedahl Racing |
| 17th | 44 | Billy Hagan / Gene Felton | Chevrolet Camaro | Stratagraph Inc. |
| 18th | 48 | John Carusso | Chevrolet Corvette | Sanyo |
| 19th | 91 | Chester Vincentz / Wayne Baker | Porsche 934 | Electrodyne |
| 20th | 03 | Lloyd Frink / Ed Hinchliff | Chevrolet Corvette | |
| 21st | 15 | Chip Mead / John Paul | Pontiac Firebird | |
| 22nd | 8 | M. L. Speer / Terry Wolters | Porsche 935 JLP-2 | JLP Racing |
| 23rd | 01 | John Morton / Milt Minter | Ford Mustang | Marketing Corporation |
| 24th | 05 | Tico Almeida / Ernesto Soto | Ford Mustang | T & R Racing |
| 25th | 84 | Ken Murray / Chris Doyle | Chevrolet Camaro | |
| 26th | 43 | Bob Gregg / Bob Young | Chevrolet Camaro | Bob Gregg Racing |
| 27th | 56 | Roberto Guerrero / Diego Montoya / "Fomfor" | BMW M1 | |
| 28th | 61 | Brent O'Neill | Buick Skyhawk | |
| 29th | 68 | Richard Valentine / Del Markle | Chevrolet Corvette | USA Racing |
| 30th | 75 | Bard Boand / Rusty Schmidt | Chevrolet Corvette | |
| 31st | 29 | Hoyt Overbagh | Chevrolet Monza | |
| 32nd | 12 | Ford Smith / Luis Sereix | Chevrolet Corvette | Ford Smith |
| 33rd | 07 | Ludwig Heimrath / Ludwig Heimrath, Jr. | Porsche 924 Carrera | Heimrath Racing |
| 34th | 58 | Elliot Forbes-Robinson / Deborah Gregg | Porsche 924 Carrera | |
| 35th | 94 | Richard Anderson / Mike Stephens | Chevrolet Corvette | |
| 36th | 28 | Robert Overby / Don Bell | Chevrolet Camaro | |
| 37th | 92 | Lee Mueller / Joe Varde | Mazda RX-7 | Kent Racing |
| 38th | 40 | Uli Bieri / Matt Gysler | BMW M1 | Bieri Racing |
| 39th | 37 | Nort Northam | Chevrolet Camaro | |
| 40th | 38 | Roger Mandeville / Amos Johnson | Mazda RX-7 | Mandeville Racing Ent. |
| 41st | 35 | Ken Madren | Porsche Carrera | Pegasus Racing |
| 42nd | 63 | Jim Downing / John Maffucci | Mazda RX-7 | Downing/Atlanta |
| 43rd | 66 | Jack Dunham / Jim Mullen | Mazda RX-7 | Dunham Trucking |
| 44th | 93 | Michael Oleyar / Dave Heinz | Chevrolet Corvette | |
| 45th | 18 | Bobby Diehl / Roy Newsome | Chevrolet Camaro | |
| 46th | 71 | Charles Morgan | Datsun 280ZX | Morgan Performance Group |
| 47th | 64 | John Hulen / Ron Coupland | Porsche Carrera | |
| 48th | 51 | Doug Carmean / Ed Pimm | Mazda RX-7 | |
| 49th | 34 | George Drolsom / John Hotchkis | Porsche 924 Carrera | Drolsom Racing |
| 50th | 50 | Greg Pusey | Porsche Carrera | |
| 51st | 32 | George Alderman / Walt Bohren | Datsun 280ZX | Alderman Datsun |
| 52nd | 65 | Luis Gordillo / Manuel Villa / Diego Febles | Porsche Carrera RSR | |
| 53rd | 19 | Lance Van Every / Ash Tisdelle | Porsche Carrera RSR | Van Every Racing |
| 54th | 54 | Jack Swanson / Dick Gauthier | Chevrolet Camaro | |
| 55th | 27 | Jim Fowells / Ray Mummery | Mazda RX-7 | Scuderia Rosso |
| 56th | 17 | Al Bacon | Mazda RX-7 | |
| 57th | 95 | Bob Leitzinger / Logan Blackburn | Datsun 280ZX | Bob Leitzinger |
| 58th | 20 | Irwin Ayes / Al White | Chevrolet Corvette | |
| 59th | 36 | Rick Cline | Mazda RX-7 | |
| 60th | 81 | Bob Speakman / Ted Schumacher | Datsun Z | |
| 61st | 99 | Jack Refenning / Mike Schaefer | Porsche 911 | |
| 62nd | 42 | Jim Fitzgerald / David Bell | Datsun 280ZX | |
| 63rd | 11 | Doug Zitza | Porsche 914/6 | |
| 64th | 49 | Gary Wonzer | Porsche 911 | |
| 65th | 72 | George Hulse | Porsche Carrera | |
| 66th | 77 | Reed Kryder | Datsun ZX | Kryderacing |
| 67th | 60 | Jack Rynerson / Van McDonald | Porsche 911 | |
| 68th | 52 | Fred Snow / Tom Cripe | Porsche 911 | |
| 69th | 78 | Vicki Smith / Klaus Bitterauf | Porsche 911 | Der Klaus Haus |
| 70th | 30 | Ron Case / Craig Case | Porsche Carrera | Ron Case |
| 71st | 74 | Del Russo Taylor / Frank Rubino | Chevron GTP Buick | Mark Wagoner |
| 72nd | 83 | Don Devendorf / Tony Adamowicz | Datsun 280ZX Turbo | Electramotive |
| 73rd | 02 | Werner Frank | Porsche 934 | |