| 1st | 8 | Foyt / Wollek | Porsche 962 | Preston Henn | 281 | 2197.8169 kms | 183.1224 | | 1st | GTP |
| 2nd | 14 | Holbert / Bell / Unser, Jr. | Porsche 962 | Holbert Racing | 277 | | | | 2nd | GTP |
| 3rd | 68 | Halsmer / Knoop / Quester | Porsche 962 | Busby Racing | 268 | | | | 3rd | GTP |
| 4th | 44 | Robinson / Tullius | Jaguar XJR-5 | Group 44 | 259 | | | | 4th | GTP |
| 5th | 63 | Downing / Maffucci | Argo JM16B Mazda | Jim Downing | 253 | | 164.3832 | | 1st | Lights |
| 6th | 65 | Dallenbach, Jr. / Jones | Ford Mustang | Team Roush Protofab | 251 | | 163.4450 | | 1st | GTO |
| 7th | 2 | Leon / Leon / McKitterick | March 85G Porsche | Leon Bros. Racing | 250 | | | | 5th | GTP |
| 8th | 11 | Kendall / Hotchkis / Kirby | Porsche 935 K3/80 | Kendall Racing | 240 | | | | 6th | GTP |
| 9th | 90 | Delano / Petery / Moise | Pontiac Firebird | Road Circuit Technology | 239 | | | | 2nd | GTO |
| 10th | 09 | Uria / Schaefer / Figaro / Refenning | Porsche Carrera RSR | 901 Shop | 237 | | | | 3rd | GTO |
| 11th | 61 | Courtney / O'Neill / Hackney | Chevrolet Monza | Team USA Racing | 231 | | | | 4th | GTO |
| 12th | 89 | "Jamsal" / Fonseca / Mena | Porsche 934 | Latino Racing | 219 | | | | 5th | GTO |
| 13th | 53 | Smith / Waugh | Mazda RX-7 | Mandeville Auto Tech | 218 | | | DNF | 6th | GTO |
| 14th | 37 | Burdsall / Welter / Nicholson | Tiga GT284 Mazda | Burdsall - Welter Racing | 216 | | | | 2nd | Lights |
| 15th | 56 | Auberlen / Jauker / Gang / Eisenlohr | Porsche 911 | SP Racing | 209 | | 136.1312 | | 1st | GTU |
| 16th | 93 | Marsh / Pawley / Marsh | Argo JM16 Mazda | Mid-O/Rusty Jones | 205 | | | | 3rd | Lights |
| 17th | 31 | Goral / Wilson | Porsche 935 | Goral Racing | 204 | | | | 7th | GTP |
| 18th | 39 | Brezinka / Centeno / Hochreuter | Porsche Carrera RSR | R & H Racing | 202 | | | DNF | 7th | GTO |
| 19th | 00 | Kendall / Kendall / Jones | Mazda RX-7 | Tommy Kendall | 202 | | | | 2nd | GTU |
| 20th | 58 | Borlase / Hammond / Torres | Porsche 934 | Coin Operated Racing | 198 | | | Suspension | 8th | GTO |
| 21st | 34 | O'Brien / Van Steenburg | Mazda OVS-1 | O'Brien - van Steenburg Racing | 184 | | | | 4th | Lights |
| 22nd | 98 | Lee / Julian / Hudlett | Buick Skyhawk | Bob's Speed Products | 182 | | | | 9th | GTO |
| 23rd | 20 | Silver / Herman / Baker | Porsche 935 JLP-2 | Spirit of Cleveland | 182 | | | | 8th | GTP |
| 24th | 38 | Mandeville / Blackburn | Mazda RX-7 | Mandeville Auto Tech | 180 | | | Suspension | 10th | GTO |
| 25th | 35 | Griffin / Hefner / Winfree | Porsche Carrera RSR | Team Dallas | 178 | | | | 3rd | GTU |
| 26th | 67 | Busby / Morton / Mass | Porsche 962 | Busby Racing | 175 | | | Accident | 9th | GTP |
| 27th | 15 | Kalagian / Lloyd / Grunnah | March 84G Chevrolet | John Kalagian Racing | 170 | | | Gearbox | 10th | GTP |
| 28th | 36 | Case / Panaccione | Porsche 911 | Case Racing | 165 | | | | 4th | GTU |
| 29th | 83 | Keck / Wessel / Montgomery | Chevrolet Corvette | K & P Racing | 158 | | | | 11th | GTO |
| 30th | 43 | DeNarvaez / Cowart / Miller | Porsche 935J | De Narvaez Enterprises | 157 | | | Engine | 11th | GTP |
| 31st | 02 | Newsome / McVey / Kreider | Mazda RX-7 | RNGC Racing | 148 | | | | 5th | GTU |
| 32nd | 88 | Shafer / Shafer / Maloy | Chevrolet Camaro III | Schaferacing | 145 | | | Engine | 12th | GTO |
| 33rd | 55 | Heinz / Trueman / Thompson | Chevrolet Corvette | Dave Heinz Imports | 134 | | | DNF | 13th | GTO |
| 34th | 78 | Higgins / Mead / King | Porsche Carrera RSR | Tokina Zoom Lenses | 128 | | | Engine | 14th | GTO |
| 35th | 7 | Wollek / Whittington / Henn | Porsche 935 L | Henn's Swap Shop Racing | 121 | | | DNF | 12th | GTP |
| 36th | 85 | Nooe / Stricklin / Stringfellow | Chevrolet Corvette | Don Nooe | 118 | | | | 15th | GTO |
| 37th | 42 | Lewis / Pruett / Varde | Mazda RX-7 | Mike Meyer/Daffy | 117 | | | Ignition | 6th | GTU |
| 38th | 81 | Bupp / Church / Generotti | Chevrolet Camaro | Ken Bupp | 116 | | | Gearbox | 16th | GTO |
| 39th | 76 | Baldwin / Kline | Mazda RX-7 | Malibu Grand Prix | 114 | | | Engine | 7th | GTU |
| 40th | 1 | Whittington / Lanier | March 84G Chevrolet | Blue Thunder Racing Team | 114 | | | Engine | 13th | GTP |
| 41st | 45 | Gordillo / Falgueras / Villa | Porsche Carrera RSR | Pennzoil de P. R. | 111 | | | DNF | 17th | GTO |
| 42nd | 54 | Zwiren / Tearney / Peters | Mazda RX-7 | Zwiren Racing | 111 | | | | 8th | GTU |
| 43rd | 25 | Boyer / Roberts / Barben | Chevrolet Camaro | Steve Roberts | 109 | | | | 18th | GTO |
| 44th | 01 | Bell / Brockman / Riggins | Argo JM16B Buick | Charles Young | 105 | | | Gearbox | 14th | GTP |
| 45th | 22 | Taylor / Hayes-Harlow / Albanese | Pontiac Firebird | Walter Johnston | 101 | | | DNF | 19th | GTO |
| 46th | 75 | Worth / Gritzalis | Mazda RX-3 | Pettit Wholesale | 91 | | | Oil leak | 9th | GTU |
| 47th | 29 | Brassfield / Luyendyk / Brassfield | March 85G Chevrolet | DeAtley Racing | 90 | | | Accident | 15th | GTP |
| 48th | 51 | McComb / Mancuso / Fiala | Ferrari 512 BB/LM | Mosler Racing | 88 | | | Gearbox | 20th | GTO |
| 49th | 05 | Whitaker / Crosby / McDill | Chevrolet Camaro | Robert Whitaker | 76 | | | DNF | 16th | GTP |
| 50th | 16 | Hinze / Minter / Yarosh | Porsche 935 K3 | Marty Hinze Racing | 70 | | | Suspension | 17th | GTP |
| 51st | 26 | Frank / White / Kendall | Porsche 935/80 | Toyota Village | 68 | | | Engine | 18th | GTP |
| 52nd | 17 | Bacon / Guest / Akin | Mazda RX-7 | Al Bacon Racing | 67 | | | DNF | 10th | GTU |
| 53rd | 5 | Stuck / Akin / Mullen | Porsche 962 | Bob Akin Motor Racing | 66 | | | Suspension | 19th | GTP |
| 54th | 79 | Forbes-Robinson / Winters / Bergstrom | Porsche 924 Carrera GTR | Whitehall Motorsports | 65 | | | Brakes | 11th | GTU |
| 55th | 49 | Munoz / Lopez / Galeano | Porsche 911 | Conrad Racing | 65 | | | DNF | 12th | GTU |
| 56th | 47 | Bohren / Millen | Pontiac Firebird | Dingman Brothers Racing | 63 | | | Engine | 21st | GTO |
| 57th | 74 | Godsey / Gentilozzi / Hill | Porsche 924 Carrera GTR | Whitehall Promotions | 59 | | | Engine | 13th | GTU |
| 58th | 21 | Gelles / Cohen | Ferrari 512 BB/LM | Gopher Motion | 54 | | | Engine | 22nd | GTO |
| 59th | 71 | Johnson / Dunham | Mazda RX-7 | Team Highball | 48 | | | Gearbox | 14th | GTU |
| 60th | 13 | Wagoner / Knott | Mazda RX-7 | Rubino Racing | 46 | | | Overheating | 15th | GTU |
| 61st | 69 | Hofstra / Slater / Robinson | Porsche Carrera RSR | Wonzer Racing | 45 | | | DNF | 23rd | GTO |
| 62nd | 08 | Olson / Potter | Mazda RX-7 | Simms-Romano | 44 | | | DNF | 16th | GTU |
| 63rd | 95 | Van Every / Tisdelle | Porsche 935 | Van Every Racing | 42 | | | Oil temperature | 20th | GTP |
| 64th | 60 | Hunt / Shelton | Mazda RX-3 | Tom Hunt | 40 | | | Suspension | 17th | GTU |
| 65th | 3 | Paul, Jr. / Madren / Pickering | March 84G Buick Turbo | Pegasus Racing | 38 | | | Clutch | 21st | GTP |
| 66th | 70 | Cummings / Rubright | Chevrolet Corvette | Ormond Racing Associates | 37 | | | Electrics | 24th | GTO |
| 67th | 04 | Redman / Haywood | Jaguar XJR-5 | Group 44 | 36 | | | Engine | 22nd | GTP |
| 68th | 50 | McCall / Carter | Chevrolet Camaro | Monty Trainer's Restauarant | 34 | | | Engine | 25th | GTO |
| 69th | 4 | Baird / Labonte | Chevrolet Corvette GTP | Lee Racing | 27 | | | Engine | 23rd | GTP |
| 70th | 92 | Gennone / Overbagh | Chevrolet Camaro | OMR Engines | 27 | | | Engine | 26th | GTO |
| 71st | 12 | Schwarz / Jelinski | Gebhardt JC853 Ford | Gebhardt Motorsports | 22 | | | Accident | 24th | GTP |
| 72nd | 66 | Habersin / Habersin | Chevrolet Camaro | Habersin Camera Shop | 22 | | | Gearbox | 27th | GTO |
| 73rd | 48 | Cripe | Porsche 934 | Gary Wonzer | 9 | | | DNF | 28th | GTO |
| 74th | 32 | Bossom | Triumph TR8 | KJJ Enterprises | 0 | | | DNF | 29th | GTO |