| 1st | 7 | Jelinski / Pescarolo / Haywood / Wollek / "Winter" | Porsche 962 C | Joest Racing | 719 | 4119.3408 kms | 171.6092 | | 1st | GTP | | | |
| 2nd | 83 | Earl / Daly / Robinson / Brabham | Nissan R90CK | Nissan Performance Technology | 701 | | 167.0757 | | 1st | LM | | | |
| 3rd | 10 | Cord / Hotchkis / Adams / Dyson | Porsche 962 | Wynn's | 692 | | | | 2nd | GTP | | | |
| 4th | 15 | Martin / Dallenbach, Jr. / Gordon | Ford Mustang | Whistler Mustang | 672 | | 160.2215 | | 1st | GTO | 1:54.1750 | 421 | 180.6456 |
| 5th | 00 | Andretti / Andretti / Andretti | Porsche 962 C | Jochen Dauer Racing | 663 | | | Overheating | 3rd | GTP | | | |
| 6th | 12 | Fergus / Jones / Schroeder | Ford Mustang | Whistler Radar | 658 | | | | 2nd | GTO | | | |
| 7th | 48 | Johnstone / Cameron / Peterson / Lesnett | Spice SE90P Acura | Acura | 654 | | 156.6616 | Electrical | 1st | Lights | 1:51.1970 | 334 | 185.9179 |
| 8th | 36 | Grooms / Greenfield / Jellinek / Greenfield | Kudzu DG-1 Mazda | Ecurie Scientific | 632 | | | | 2nd | Lights | | | |
| 9th | 54 | Dow / Hepworth / ten Cate | Spice SE89P Buick | HDF Motorsport | 620 | | | Gearbox | 3rd | Lights | | | |
| 10th | 90 | Stevens / Bennett / Grunnah / Jaeger | Ford Mustang | Roush Racing | 619 | | | | 3rd | GTO | | | |
| 11th | 4 | Bonner / Cope / Kline / Sharp | Spice SE89P Chevrolet | Tom Milner Racing | 611 | | | | 4th | GTP | | | |
| 12th | 92 | Smith / Pilgrim / Bundy / Varde | Chevrolet Corvette | EDS/Mobil/Goodyear | 611 | | | | 4th | GTO | | | |
| 13th | 82 | Greer / Bacon / Mees / Uria | Mazda RX-7 | Greer Racing | 605 | | 144.2310 | | 1st | GTU | | | |
| 14th | 63 | Redman / O'Steen / Cobb / Halsmer | Mazda RX-7 | Mazda | 576 | | | | 5th | GTO | | | |
| 15th | 37 | Espinosa / Wilson / Morejon / Solano | Mazda MX-6 | Botero Racing | 576 | | | | 2nd | GTU | | | |
| 16th | 38 | Mandeville / Johnson / Marsh | Mazda RX-7 | Mandeville Auto Tech | 568 | | | | 3rd | GTU | 2:03.7180 | 27 | 166.7119 |
| 17th | 42 | Nicol / Tennyson / Brayton | Tiga GT286 Mazda | Intersport | 556 | | | | 4th | Lights | | | |
| 18th | 09 | Hynes / Johnson / Robertson / Sheldon | Tiga GC287 Buick | R. J. Racing | 545 | | | | 5th | Lights | | | |
| 19th | 26 | Kraft / Job / Pezza / Refenning | Porsche 911 | Border Cantina | 494 | | | | 4th | GTU | | | |
| 20th | 84 | Bailey / Millen / Luyendyk / Dale | Nissan R90CK | Nissan Performance Technology | 472 | | | Transaxle | 2nd | LM | 1:39.7650 | 518 | 206.7396 |
| 21st | 91 | Hayner / Knowles / Heinricy / Lagasse / Morrison | Chevrolet Corvette ZR-1 | EDS/Mobil/Goodyear | 464 | | | | 6th | GTO | | | |
| 22nd | 16 | Weaver / Paul, Jr. / Needell | Porsche 962 C | Dyson Racing | 450 | | | Oil pump | 5th | GTP | | | |
| 23rd | 72 | Volk / Kjoller / Mooney | Porsche 911 | Jay Kjoller Motorsports | 449 | | | | 5th | GTU | | | |
| 24th | 5 | Brockman / McAdam / Phillips / Davis | Spice SE89P Chevrolet | Tom Milner Racing | 448 | | | Engine | 6th | GTP | | | |
| 25th | 70 | Gigliotti / Said / Nolan / Schramm / Cunningham | Oldsmobile Cutlass | M/J Engineering | 445 | | | | 7th | GTO | | | |
| 26th | 66 | Reese / Gagliardo / Hoyt | Mazda RX-7 | North Coast Racing | 442 | | | Engine | 6th | GTU | | | |
| 27th | 11 | Gooding / Annis / Kennedy / Northam / Panaggio | Chevrolet Camaro | Robert Williams | 427 | | | | 8th | GTO | | | |
| 28th | 98 | Dismore / Moran / Jones | Eagle HF89 Toyota | All American Racers | 408 | | | Engine | 7th | GTP | | | |
| 29th | 87 | Hill / Holmes / Puleo / Urrutia | Chevrolet Camaro III | A & R Auto Electric | 396 | | | | 9th | GTO | | | |
| 30th | 2 | Jones / Pruett / Boesel / Warwick | Jaguar XJR-12D | Bud Light Jaguar Racing | 379 | | | Water pump | 8th | GTP | 1:41.0500 | 24 | 204.1099 |
| 31st | 6 | Wollek / Schneider / Barilla / Sigala | Porsche 962 C | Joest Racing | 360 | | | Water pump | 9th | GTP | | | |
| 32nd | 9 | Pace / Hessert / Morgan | Kudzu DG-1 Buick | Essex Racing | 359 | | | Oil leak | 6th | Lights | | | |
| 33rd | 20 | Ko / Sheehan / McKay / Monk | Tiga GT287 Chevrolet | Carlos Bobeda Racing | 328 | | | Gearbox input shaft | 7th | Lights | | | |
| 34th | 45 | Forbes / Fengler / Hundredmark / Curren | Chevrolet Corvette C4 | First Coast Trucks | 315 | | | | 10th | GTO | | | |
| 35th | 0 | Unser, Jr. / Unser / Unser / Unser | Porsche 962 C | Jochen Dauer Racing | 270 | | | Accident | 10th | GTP | | | |
| 36th | 28 | Arpin / Olch / Banks / Watkins | Chevrolet Camaro | Del Russo Taylor | 234 | | | Engine | 11th | GTO | | | |
| 37th | 53 | McDill / McDill / Burt | Chevrolet Camaro | Hi-Tech Coating | 223 | | | Mechanical | 12th | GTO | | | |
| 38th | 96 | Kurtz / Leitzinger / Loring / Reynolds | Nissan 240SX | Fastcolor Auto Art | 192 | | | Engine | 7th | GTU | | | |
| 39th | 57 | Camferdam / Krueger / Oag / Kryder | Nissan 240SX | KrydeRacing | 159 | | | Accident | 8th | GTU | | | |
| 40th | 60 | Cochran / Bell / Bell | Gunnar 966 Porsche | Gunnar Porsche | 83 | | | | 11th | GTP | | | |
| 41st | 04 | Scolo / Burgner / Macaluso | Chevrolet Camaro | Henry Brosnaham | 78 | | | | 13th | GTO | | | |
| 42nd | 99 | Fangio II / Ribbs / Wallace | Eagle HF89 Toyota | All American Racers | 60 | | | Engine | 12th | GTP | | | |
| 43rd | 62 | Morton / Fish | Mazda RX-7 | Mazda | 50 | | | Accident | 14th | GTO | | | |
| 44th | 1 | Luyendyk / Bailey | Nissan R90CK | Nissan Performance Technology | 47 | | | Withdrawn | 3rd | LM | | | |
| 45th | 06 | Kimbrough / Overbagh | Chevrolet Camaro | Overbagh Motor Racing | 37 | | | Engine | 15th | GTO | | | |
| 46th | 95 | Leitzinger | Nissan 240SX | Fastcolor Auto Art | 13 | | | Engine | 9th | GTU | | | |