| 1st | 9 | Bobby Rahal / Bob Garretson | Porsche 935 K3 | Dick Barbour Racing | 2:12.6280 |
| 2nd | 6 | John Fitzpatrick / Dick Barbour | Porsche 935 K3/80 | Dick Barbour Racing | 2:09.7000 |
| 3rd | 30 | Gianpiero Moretti / Jim Busby | Porsche 935J | Momo/Penthouse/Electrodyne | 2:12.7000 |
| 4th | 0 | Ted Field / Milt Minter | Porsche 935 K3/80 | Interscope Racing | 2:13.4900 |
| 5th | 86 | Hurley Haywood / Bruce Leven | Porsche 935/80 | Bayside Disposal Racing | 2:13.5370 |
| 6th | 09 | Dale Whittington / Preston Henn | Porsche 935 K3 | Preston Henn | 2:13.7770 |
| 7th | 18 | John Paul, Jr. / John Paul | Porsche 935 JLP-2 | JLP Racing | 2:14.4950 |
| 8th | 19 | Chris Cord / Jim Adams | Chevrolet Monza | Chris Cord Racing | 2:16.1950 |
| 9th | 5 | Brian Redman / Bob Akin / Paul Miller | Porsche 935 K3 | Racing Associates | 2:16.8010 |
| 10th | 07 | Ludwig Heimrath | Porsche 935 | Heimrath Racing | 2:17.0250 |
| 11th | 33 | Sam Posey / Paul Newman | Datsun 280ZX Turbo | Bob Sharp Racing | 2:18.4390 |
| 12th | 20 | Bruce Jenner | Chevrolet Monza | Chris Cord Racing | 2:20.5510 |
| 13th | 80 | Richard Valentine / Maurice Carter | Chevrolet Camaro | Maurice Carter | 2:24.5390 |
| 14th | 25 | Dave Cowart / Kenper Miller | BMW M1 | Red Lobster Racing | 2:26.0510 |
| 15th | 64 | Dennis Aase / Bob Bergstrom | Porsche 911 | Alan Johnson Racing | 2:26.0300 |
| 16th | 44 | Bob Tullius / Bill Adam | Triumph TR8 | JRT/Quaker State | 2:26.6000 |
| 17th | 68 | Luis Mendez / Jaime Rodriguez | Porsche 911 Carrera RSR | Mendez Racing | 2:27.0560 |
| 18th | 54 | Terry Herman / Tony Garcia | Porsche Carrera RSR | Montura Racing | 2:27.3730 |
| 19th | 83 | Don Devendorf / Tony Adamowicz | Datsun 280ZX | Electramotive | 2:27.6240 |
| 20th | 47 | Brad Frisselle | Mazda RX-7 | Brad Frisselle Racing | 2:28.0750 |
| 21st | 56 | Craig Carter / Murray Edwards | Chevrolet Camaro | Peerless Racing Ent. | 2:28.2990 |
| 22nd | 48 | John Carusso / Phil Currin | Chevrolet Corvette | Dynasales | 2:28.3480 |
| 23rd | 03 | Werner Frank / Carlos Moran | Porsche 934 | Toyota Village | 2:28.4090 |
| 24th | 7 | Walt Bohren / Jeff Kline | Mazda RX-7 | Racing Beat | 2:29.0720 |
| 25th | 62 | Bill Koll / Jim Cook | Porsche 911 | Koll Motor Sports | 2:30.1880 |
| 26th | 49 | Jim Moyer / Phil Pate | Chevrolet Corvette | James I. Moyer | 2:30.5500 |
| 27th | 91 | Roger Schramm / Ted Klint / Werner Frank | Porsche Carrera RSR | Framm Promotions | 2:32.4470 |
| 28th | 23 | Dick Davenport / Frank Carney | Datsun 280ZX | Raytown Datsun | 2:32.7060 |
| 29th | 02 | Paul Canary / Jim Sanborn | Chevrolet Corvette | Paul Canary | 2:32.9490 |
| 30th | 46 | Mauricio DeNarvaez / Albert Naon | Porsche 911 Carrera RSR | DeNarvaez Enterprises | 2:33.5100 |
| 31st | 37 | Bard Boand / Ray Irwin | Chevrolet Corvette | Bard Boand Racing | 2:33.7350 |
| 32nd | 82 | John Casey / Steve Dietrich | Mazda RX-7 | Trinity Racing | 2:34.1340 |
| 33rd | 73 | Ernesto Soto / Pierre Honegger | Mazda RX-7 | Z & W Enterprises | 2:34.5840 |
| 34th | 52 | Wayne Baker / Jeff Scott | Porsche 914/6 | Personalized Autohaus | 2:34.8390 |
| 35th | 32 | Brett Lunger / George Alderman | Datsun 240Z | G. Alderman Racing | 2:35.4040 |
| 36th | 81 | Tom Winters / Jim Mullen | Mazda RX-7 | Trinity Racing | 2:35.5010 |
| 37th | 40 | Mark Altman | Porsche 914/6 | Southard Motor Racing | 2:36.3510 |
| 38th | 41 | Rusty Schmidt / Dan Schott | Chevrolet Corvette | Corvettes Unlimited | 2:36.5860 |
| 39th | 75 | Billy Hagan / Dale Kreider | Chevrolet Corvette | Dale Kreider Racing | 2:36.5920 |
| 40th | 84 | Dave Rein / Richard Rosenmerkel | Chevrolet Camaro | Rainbow Racing Ent. | 2:37.9860 |
| 41st | 8 | Anatoly Arutunoff | Lancia Stratos | A. Arutunoff | 2:41.7960 |
| 42nd | 34 | George Drolsom / Bill Johnson | Porsche 911 | Drolsom Racing | 2:42.0900 |
| 43rd | 85 | Ron Coupland / John Hulen | Porsche 914/6 | John E. Hulen | 2:43.0580 |
| 44th | 38 | Jack Buchinger / Michael Guffey | Datsun 280ZX | John Buchinger | 2:43.8290 |
| 45th | 57 | Karen Erstad / Pat Daily | Porsche 914/4 | Performance Porsche | 2:43.8560 |
| 46th | 24 | Doug Grunnet / Glen Johnson | Mazda RX-7 | Corp Racing Ltd. | 2:43.9210 |
| 47th | 66 | Jack Dunham / John Maffucci | Mazda RX-7 | Jack Dunham | 2:44.5900 |
| 48th | 14 | Mark Leuzinger | De Tomaso Pantera | B.R. Racing Team | 2:51.8440 |
| 49th | 29 | Tom Cronin | Fiat 128 | Cronin Racing Ent. | 2:54.5050 |
| 50th | 31 | Larry Trotter / Larry Voit | Chevrolet Corvette | Midwest Team Corvette | no time |
| 51st | 76 | Joe Chamberlain / John Chamberlain | Chevrolet Corvette | Arrow Heating Co. | no time |
| 52nd | 78 | Clark Howey / Dale Koch | Chevrolet Camaro | Howey Farms | no time |
| 53rd | 87 | Ronald Drew / John Staab / Bill Porter | Chevrolet Corvette | Ronald F. Drew | no time |
| 54th | 00 | Ted Field / Milt Minter | Porsche 935/77A | Interscope Racing | no time |
| 55th | 01 | Don Yenko / Gene Rutherford | Oldsmobile Cutlass | Don Yenko | no time |