| 1st | 45 | John Paul, Jr. / Bill Adam / Whitney Ganz | March 85G Buick | Conte Racing | 1:41.4900 |
| 2nd | 0 | Sarel van der Merwe / Tony Martin / Ian Scheckter | March 84G Porsche | Kreepy Krauly Racing | 1:43.2080 |
| 3rd | 8 | A. J. Foyt / Bob Wollek / Al Unser / Thierry Boutsen | Porsche 962 | Henn's Swap Shop Racing | 1:43.5880 |
| 4th | 14 | Al Holbert / Al Unser, Jr. / Derek Bell | Porsche 962 | Holbert Racing | 1:44.7890 |
| 5th | 5 | Hans-Joachim Stuck / Bob Akin / Paul Miller | Porsche 962 | Bob Akin Motor Racing | 1:45.4710 |
| 6th | 1 | Bill Whittington / Randy Lanier / Al Leon | March 85G Porsche | Leon Brothers Racing | 1:45.5840 |
| 7th | 86 | Thierry Boutsen / Bruce Leven / Henri Pescarolo | Porsche 962 | Bayside Disposal Racing | 1:46.1330 |
| 8th | 44 | Brian Redman / Bob Tullius / Hurley Haywood | Jaguar XJR-5 | Group 44 | 1:47.0030 |
| 9th | 15 | John Kalagian / John Lloyd / Tom Grunnah | March 84G Chevrolet | Kalagian Racing | 1:47.7730 |
| 10th | 04 | Claude Ballot-Léna / Jim Adams / Chip Robinson | Jaguar XJR-5 | Group 44 | 1:48.0390 |
| 11th | 29 | Michael Roe / Tommy Byrne / Darin Brassfield | March 84G Chevrolet | DeAtley Motorsports | 1:48.2900 |
| 12th | 67 | Jim Busby / Rick Knoop / Jochen Mass | Porsche 962 | B.F. Goodrich | 1:48.3750 |
| 13th | 4 | Lew Price / Carson Baird / Billy Hagan / Terry Labonte | Lola T711 Chevrolet | Lee Racing | 1:48.7560 |
| 14th | 2 | Skeeter McKitterick / Terry Wolters / Art Leon | March 84G Chevrolet | Leon Bros Racing | 1:49.2030 |
| 15th | 68 | Pete Halsmer / John Morton / Dieter Quester | Porsche 962 | B.F. Goodrich | 1:49.6020 |
| 16th | 61 | Steve Shelton / Don Courtney / Brent O'Neill | Royale RP40 Ford | Team USA/Deco Sales | 1:49.7770 |
| 17th | 25 | Kenper Miller / Dave Cowart / Mauricio DeNarvaez | March 83G Chevrolet | Red Lobster Racing | 1:50.0410 |
| 18th | 30 | Gianpiero Moretti / Jim Trueman / Massimo Sigala | Alba/Momo AR5 Ford | Momo Corse | 1:50.6370 |
| 19th | 3 | Bobby Allison / Wayne Pickering / Ken Madren | March 84G Buick Turbo | Pegasus Racing | 1:50.7330 |
| 20th | 7 | Jim Mullen / Kees Nierop / Ray McIntyre | Porsche 935-84 | Bob Akin Motor Racing | 1:50.8430 |
| 21st | 07 | Lyn St. James / Tim Coconis / Eric Lang | Argo JM16 Ford | LSJ Racing | 1:51.1160 |
| 22nd | 16 | Harald Grohs | Porsche 935 L | Henn's Swap Shop Racing | 1:52.0530 |
| 23rd | 06 | John Bauer / Jim Miller / Willy T. Ribbs | Ford Mustang | Team Roush Protofab | 1:52.4270 |
| 24th | 97 | Billy Scyphers / Allen Glick / Bill Cooper | Chevrolet Corvette | Scyphers-Ankor Racing | 1:53.9290 |
| 25th | 65 | Wally Dallenbach, Jr. / John Jones / Doc Bundy | Ford Mustang | Roush Protofab | 1:54.2090 |
| 26th | 90 | Les Delano / Andy Petery / Tommy Riggins | Pontiac Firebird | Road Circuit Tech | 1:54.3830 |
| 27th | 6 | Charles Morgan / Bill Alsup / Jim Miller | Royale RP40 Buick | Morgan Performance | 1:54.5630 |
| 28th | 9 | Jack Newsum / Wayne Baker / Chip Mead / Ren Tilton | Porsche 935 K3 | Personalized Autohaus | 1:54.8030 |
| 29th | 11 | Chuck Kendall / Peter Fitzgerald / John Hotchkis | Porsche 935 K3/80 | Kendall Racing | 1:56.6540 |
| 30th | 33 | Richard Anderson / Bard Boand / Mike Brummer | Lola T600 Chevrolet | Bo-And Racing | 1:57.0760 |
| 31st | 80 | Neil Bonnet / Jim Derhaag / Les Lindley | Chevrolet Camaro | Lindley Motor LTD | 1:57.8860 |
| 32nd | 89 | "Jamsal" / Eduardo Galdamez / "Anbagua" | Porsche 934 | Scorpio Racing | 1:59.4050 |
| 33rd | 28 | Gary Baker / Robin McCall / Joe Ruttman | Chevrolet Corvette | Southern Racing Promo | 2:00.1280 |
| 34th | 51 | John McComb / Rick Mancuso / Fred Fiala | Ferrari 512 BB/LM | Mosler Racing | 2:00.3620 |
| 35th | 95 | Lance Van Every / Ash Tisdelle / Jack Refenning | Porsche 935 | Van Every Racing | 2:00.3640 |
| 36th | 21 | Steve Cohen / Don Walker / William Gelles | Ferrari 512 BB/LM | Gopher Motion | 2:00.5710 |
| 37th | 72 | Harold Shafer / Tom Nehl / Kent Painter | Chevrolet Camaro | Centurion Auto Trans | 2:00.9470 |
| 38th | 96 | Allan Moffat / Gregg Hansford / Kevin Bartlett / Peter McCloud | Mazda RX-7 | Allan Moffat Racing | 2:01.0380 |
| 39th | 58 | Jim Torres / Don Kravig / Michael Hammond | Porsche 934 | Coin Operated Racing | 2:01.1580 |
| 40th | 41 | Luis Sereix / Ralph Noseda | Pontiac Firebird | Unlimited Telephones | 2:01.4470 |
| 41st | 93 | Kelly Marsh / Ron Pawley / Don Marsh | Argo JM16 Mazda | Mid-O/Rusty Jones | 2:01.6000 |
| 42nd | 20 | Freddy Baker / Don Herman / Rich Maher | Porsche 935 JLP-2 | Spirit of Cleveland | 2:02.1350 |
| 43rd | 83 | William Wessel / Robert Whitaker / Mark Kennedy / Karl Keck | Chevrolet Corvette | K & P Racing | 2:02.1730 |
| 44th | 66 | Bob Beasley / Jack Lewis / Chuck Grantham | Porsche Carrera RSR | Bob Beasley | 2:02.3490 |
| 45th | 87 | Elliot Forbes-Robinson / John Schneider / Don Istook | Porsche 924 Carrera | Performance Motorsports | 2:02.3880 |
| 46th | 70 | Don Cummings / Craig Rubright | Chevrolet Corvette | Ormond Racing | 2:02.9510 |
| 47th | 54 | Dave Heinz / Dave Barnett / Jerry Thompson | Chevrolet Corvette | Dave Heinz Imports | 2:03.8070 |
| 48th | 76 | Jack Baldwin / Ira Young / Jeff Kline | Mazda RX-7 | Malibu Grand Prix | 2:04.2950 |
| 49th | 42 | Scott Pruett / Paul Lewis / Joe Varde | Mazda RX-7 | Mike Meyer/Daffy SWR | 2:04.4870 |
| 50th | 99 | Chris Cord / Dennis Aase | Toyota Celica | All American Racers | 2:05.1870 |
| 51st | 37 | Peter Welter / Nick Nicholson / Tom Burdsall | Tiga GT284 Mazda | Aerex Manufacturing | 2:05.2820 |
| 52nd | 53 | Danny Smith / Tom Waugh / Diego Febles | Mazda RX-7 | Mandeville Auto-Tech | 2:05.5110 |
| 53rd | 22 | Del Russo Taylor / John Hayes-Harlow / Bob Lee | Pontiac Firebird | Walter Johnston | 2:05.6100 |
| 54th | 71 | Amos Johnson / Jack Dunham / Yojiro Terada | Mazda RX-7 | Team Highball | 2:05.8280 |
| 55th | 78 | Raul Garcia / Eugenio Matienzo | Pontiac Firebird | Superior Racing Team | 2:05.9840 |
| 56th | 73 | Clark Howey / Dale Koch / Tracy Wolf | Chevrolet Camaro | Wolf Engines | 2:07.1360 |
| 57th | 08 | Drake Olson / Steve Potter / Willard Howe | Mazda RX-7 | Paul Romano | 2:07.9330 |
| 58th | 38 | Takashi Yorino / Logan Blackburn / Roger Mandeville | Mazda RX-7 | Mandeville Auto-Tech | 2:07.9510 |
| 59th | 31 | Hugo Gralia / Emory Donaldson / Paul Goral | Porsche 935 | Goral Racing | 2:08.0570 |
| 60th | 35 | M. L. Speer / Bobby Hefner / Jack Griffin | Porsche Carrera RSR | Team Dallas | 2:08.6750 |
| 61st | 92 | Chris Gennone / Fern Prego / Hoyt Overbagh / Lewis Fuller | Chevrolet Camaro | OMR Engines | 2:08.6760 |
| 62nd | 09 | Mike Schaefer / Peter Uria / Jack Refenning / Larry Figaro | Porsche Carrera RSR | 901 Shop | 2:08.7380 |
| 63rd | 13 | Frank Rubino / Dennis Wagoner / Ken Knott | Mazda RX-7 | Rubino Racing | 2:08.8380 |
| 64th | 17 | Al Bacon / Charles Guest / Steve Millen | Mazda RX-7 | Al Bacon Racing | 2:09.0090 |
| 65th | 77 | Don Wallace / John Petrick / Don Sikes | Mazda RX-7 | Championship Motorsports | 2:09.5140 |
| 66th | 57 | Steve Zwiren / Tony Pio Costa / Mike Allison / Wes Donnington | Mazda RX-7 | Zwiren Racing | 2:09.5570 |
| 67th | 55 | Robert Peters / George Schwarz / Andre Schwartz | Mazda RX-7 | Preston & Son Enterprises | 2:09.9520 |
| 68th | 60 | Tony Swan / Bob Ruth / Steve Dietrich | Mazda RX-7 | Hobbit Racing | 2:10.4240 |
| 69th | 81 | Steve Alexander / Joe Hill / George Alderman | Ferrari 308 GTB | Mosler Racing | 2:11.0650 |
| 70th | 74 | Paul Gentilozzi | Porsche 924 Carrera GTR | Whitehall Motorsports | 2:11.2260 |
| 71st | 43 | Rusty Schmidt / Scott Schmidt / Max Schmidt | Chevrolet Corvette | Starved Rock Lodge | 2:11.4520 |
| 72nd | 47 | Walt Bohren / Ron Bouchard | Pontiac Firebird | Dingman Brothers Racing | no time |
| 73rd | 49 | Albert Naon, Jr. / Dennis Vitolo / Fernando Garcia | Porsche 911 | Conrad Racing | 2:11.6120 |
| 74th | 63 | Jim Downing / John Maffucci / Yoshimi Katayama | Argo JM16 Mazda | RGP 500 Racing | no time |
| 75th | 84 | Clay Young | Pontiac Fiero | Young Racing | no time |
| 76th | 94 | William Phalf / Skip Winfree / Wally Hopkins | Porsche 911 | 49th Star Racing | 2:11.2450 |