| 1st | 9 | Bobby Rahal / Bruce Canepa / Jim Trueman | March 82G Chevrolet | Garretson Ent. | 1:43.8910 | 214.1425 |
| 2nd | 2 | John Fitzpatrick | Porsche 935 K3/80 | John Fitzpatrick Racing | 1:44.1220 | 213.6600 |
| 3rd | 00 | Bill Whittington / Ted Field | Porsche 935 K3/80 | Interscope Racing | 1:45.7520 | |
| 4th | 86 | Hurley Haywood / Bruce Leven / Al Holbert | Porsche 935/80 | Bayside Disposal Racing | 1:45.7630 | 210.3400 |
| 5th | 18 | John Paul, Jr. / Rolf Stommelen / John Paul | Porsche 935 JLP-3 | JLP Racing | 1:46.2430 | |
| 6th | 09 | Preston Henn / Desiré Wilson / Marty Hinze | Porsche 935 K3 | Thunderbird Swap Shop | 1:46.5150 | |
| 7th | 5 | Bob Akin / Craig Siebert / Derek Bell | Porsche 935 K3/80 | Bob Akin Motor Racing | 1:47.0940 | |
| 8th | 7 | Ralph Kent-Cooke / Eppie Wietzes / Jim Adams | Lola T600 Chevrolet | Cooke Racing | 1:48.7090 | |
| 9th | 0 | Ted Field | Porsche 935 K3/80 | Interscope Racing | 1:48.8210 | 209.9700 |
| 10th | 8 | John Paul | Porsche 935 JLP-2 | JLP Racing | 1:49.9260 | |
| 11th | 25 | Dave Cowart / Kenper Miller | March 82G BMW | Red Lobster Racing | 1:51.7490 | |
| 12th | 46 | Mauricio DeNarvaez / Bob Garretson / Jeff Wood | Porsche 935 K3 | Garretson Ent. | 1:52.0160 | |
| 13th | 62 | Bill Koll / Irv Hoerr / Skeeter McKitterick | Rondeau M382 Cosworth | Golden Eagle Racing | 1:52.3650 | |
| 14th | 3 | Danny Sullivan / Gary Belcher / Hubert Phipps | Rondeau M382 Cosworth | Belcher Racing | 1:52.9100 | |
| 15th | 6 | Bob Wollek / Edgar Dören / Randy Lanier | Ferrari 512 BB/LM | N.A.R.T. | 1:54.0320 | |
| 16th | 26 | Tom Nehl / Tommy Riggins / Nelson Silcox | Chevrolet Camaro | Auriga Racing | 1:54.0590 | |
| 17th | 11 | Dennis Aase | BMW M1 | Kendall Racing | 1:54.6290 | 194.0837 |
| 18th | 54 | Tony Garcia / Albert Naon / Rob McFarlin | BMW M1 | Montura Racing | 1:57.3540 | |
| 19th | 4 | Bob Raub / Bob Leitzinger / Art Pasmas | Pontiac Firebird | Oftedahl Racing | 1:57.8200 | |
| 20th | 77 | Yoshimi Katayama / Takashi Yorino / Yojiro Terada | Mazda RX-7 | Mazda of North America | 1:59.9130 | |
| 21st | 24 | Jack Refenning / Ren Tilton / Rusty Bond | Porsche 934 | 901 Shop | 2:00.1520 | |
| 22nd | 79 | Bob Bergstrom | Porsche 924 Carrera GTR | Promo. Ltd./Whitehall Cap. | 2:01.2200 | |
| 23rd | 01 | John Morton / Tom Klausler | Ford Mustang | Marketing Corp. of America | 2:01.0720 | |
| 24th | 05 | Ernesto Soto / Rene Rodriguez / Tico Almeida | Porsche Carrera RSR | T & R Racing | 2:01.2200 | |
| 25th | 07 | Ludwig Heimrath, Jr. / Ludwig Heimrath | Porsche 924 Carrera | Heimrath Racing | 2:01.6050 | |
| 26th | 58 | Doc Bundy / Jim Busby / Manfred Schurti | Porsche 924 Carrera | Brumos Racing | 2:02.8830 | |
| 27th | 75 | Dale Kreider / Keith Swope / Peter Knab | Chevrolet Corvette C3 | Performance Plus Products | 2:03.4400 | |
| 28th | 21 | Joe Crevier / Fred Stiff / Dennis Wilson | BMW M1 | Crevier & Associates | 2:03.4910 | |
| 29th | 92 | Jim Mullen / Walt Bohren / Ron Grable | Mazda RX-7 | Kent Racing | 2:03.4910 | 180.1548 |
| 30th | 50 | Diego Febles / Tato Ferrer / Chiqui Soldevilla | Porsche Carrera RSR | Diego Febles Racing | 2:03.4760 | |
| 31st | 37 | Dick Neland / Ed Kuhel / Nort Northam | Chevrolet Camaro | Kend Co. Ent. | 2:03.5160 | |
| 32nd | 44 | Billy Hagan / Terry Labonte / Gene Felton | Chevrolet Camaro III | Stratagraph | 2:03.6370 | |
| 33rd | 67 | Les Delano / Andy Petery / Jeremy Nightingale | AMC Spirit AMX | Levi's Team Highball | 2:03.8280 | |
| 34th | 29 | Dave Heinz / Peter Kirill / Hoyt Overbagh | Chevrolet Monza | Oberdorfer Research | 2:03.8590 | |
| 35th | 38 | Roger Mandeville / Amos Johnson / Jeff Kline | Mazda RX-7 | Mandeville Racing Ent. | 2:04.1600 | |
| 36th | 63 | Tom Waugh / Jim Downing / John Maffucci | Mazda RX-7 | Downing/Atlanta | 2:04.1890 | |
| 37th | 35 | M. L. Speer / Ray Ratcliff / Terry Wolters | Porsche Carrera RSR | W-S Ent. | 2:04.5270 | |
| 38th | 23 | Dick Davenport / Frank Carney / John McComb | Datsun 280ZX | Raytown Datsun/D. Preston | 2:04.7790 | |
| 39th | 88 | Bob Beasley / George Stone / Jack Lewis | Porsche Carrera RSR | Bob Beasley | 2:04.9200 | |
| 40th | 43 | Bob Young / Bob Gregg / Ray McIntyre | Porsche Carrera RSR | Bob Gregg Racing | 2:04.9220 | |
| 41st | 66 | Jack Dunham / Scott Smith, Jr. / Scott Smith | Mazda RX-7 | Dunham Trucking | 2:05.0910 | |
| 42nd | 57 | Doug Carmean / John O'Steen / Ed Pimm | Mazda RX-7 | Red Roof Inn | 2:05.2640 | |
| 43rd | 41 | Rusty Schmidt / Scott Schmidt / Kerry Hitt | Chevrolet Corvette C3 | Starved Rock Ledge | 2:05.6120 | |
| 44th | 89 | Gary English / Jerry Thompson | Chevrolet Camaro | Herb Adams | 2:05.6310 | |
| 45th | 98 | Kathy Rude / Lee Mueller / Allan Moffat | Mazda RX-7 | Kent Racing | 2:06.9560 | |
| 46th | 42 | Gary Wonzer / Bill Bean / Chuck Grantham | Porsche 911 | Gary Wonzer | 2:09.0910 | |
| 47th | 30 | Russ Long / Craig Case / Ron Case | Porsche 911 | Case Racing | 2:09.6160 | |
| 48th | 87 | Armando Ramirez / Steve Cook / Bill Cooper | Mazda RX-7 | R. Sanchez Racing | 2:09.7870 | |
| 49th | 27 | Jim Fowells / Ray Mummery / John Carusso | Mazda RX-7 | Scuderia Rosso | 2:10.0280 | |
| 50th | 78 | Scott Flanders / Klaus Bitterauf / Vicki Smith | Porsche 911 | Der Klaus Haus | 2:12.3540 | |
| 51st | 65 | Rick Knoop / Carson Baird / Tom Pumpelly | Ferrari 512 BB/LM | Prancing Horse Farm Racing | no time | |
| 52nd | 10 | Carl Shafer / Joe Mooney / Tony Brassfield | Chevrolet Camaro II | Oftedahl Racing | no time | |
| 53rd | 47 | Bernard de Dryver | Ferrari 512 BB/LM | Tide Racing | no time | |
| 54th | 36 | Paul Miller / Pat Bedard / Jürgen Barth | Porsche 924 Carrera | Herman + Miller P+A | no time | |
| 55th | 20 | Ron Hunter / Richard Turner / Duane Eitel | Mercury Capri | AutoWest | no time | |
| 56th | 70 | Larry Chmura / Jim Schofield / Brent Regan | Chevron GTP Mazda | Genesis Racing | no time | |
| 57th | 60 | Guy Church / Tom Alan Marx | AMC AMX | Bob's Speed Products | no time | |
| 58th | 34 | George Drolsom / Bill Johnson / Werner Frank | Porsche 924 Carrera | Drolsom Racing | no time | |
| 59th | 444 | Bob Tullius / Bill Adam / Gordon Smiley | Jaguar XJS | Group 44 | no time | |
| 60th | 53 | "Fomfor" / Guillermo Valiente / Wenseslao Kreysa | BMW 3.0 CSL | Nemtex | no time | |
| 61st | 13 | Anatoly Arutunoff / José Marina | Lancia Stratos | Hallet Motor Racing Circuit | no time | |
| 62nd | 15 | Dave Panaccione / Chip Mead / John Graham | Porsche 911 Carrera RSR | D. L. Performance | no time | |
| 63rd | 49 | Jerry Jolly / Bob Copeman / Tom Alan Marx | Porsche Carrera RSR | Copeman Racing | no time | |
| 64th | 51 | Tom Juckette / Mike Meldeau / Bill McDill | Chevrolet Camaro | Meldeau Tire World | no time | |
| 65th | 52 | Jack Swanson | Porsche 911 | Ours & Hours Racing | no time | |
| 66th | 72 | Jean Kjoller / Bob Nikel / Grady Clay | Porsche Carrera RSR | Carrera Motorsports | no time | |
| 67th | 73 | Clark Howey / Dale Koch / Tracy Wolf | Chevrolet Camaro | Wolf Engine | no time | |
| 68th | 74 | Del Russo Taylor / Bob Arego / Wayne Dassinger | Chevron GTP Buick | Mark Wagoner | no time | |
| 69th | 80 | Roger Mears / Leonard Emanuelson / Herb Adams | Pontiac Firebird | Herb Adams | no time | |
| 70th | 83 | Harro Zitza / John Belperche / Doug Zitza | Porsche 914/6 | Zotz Garage | no time | |
| 71st | 84 | "Jamsal" / Eduardo Barrientos / Eduardo Galdamez | Porsche 934 | Scorpio Racing | no time | |
| 72nd | 02 | John Bauer / Gary Pratt / Milt Minter | Ford Mustang | Marketing Corp. of America | no time | |
| 73rd | 08 | Alan Howes / Paul Nacthwey / Oliver Jones | Porsche 911 | Portia Parlor | no time | |