| 1st | 01 | Pruett / Duran / Montoya | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 668 | 24:00:55.002 | 159.3637 | | 1st | DP | 1:44.3950 | 602 | 197.5711 |
| 2nd | 11 | Duno / Carpentier / Manning / Dalziel | Riley Mk XI Pontiac | SAMAX | 668 | 24:02:10.844 | 159.2237 | | 2nd | DP | 1:44.3940 | 289 | 197.5727 |
| 3rd | 10 | Taylor / Angelelli / Gordon / Magnussen | Riley Mk XI Pontiac | SunTrust Racing | 666 | 24:02:24.550 | 158.7216 | | 3rd | DP | 1:44.5380 | 589 | 197.3008 |
| 4th | 59 | France / Haywood / Barbosa / Moreno / Donohue | Riley Mk XI Porsche | Brumos Porsche/Kendall | 662 | 24:02:23.121 | 157.7704 | | 4th | DP | 1:44.2330 | 217 | 197.8769 |
| 5th | 61 | Frisselle / Wilkins / Frisselle / Empringham | Riley Mk XI Lexus | Exchange Traded Gold AIM Autosport | 657 | 24:02:18.019 | 156.5892 | | 5th | DP | 1:45.8840 | 128 | 194.7918 |
| 6th | 7 | Festa / Enge / Montanari / Yasukawa / Szekeres | Riley Mk XI Pontiac | SAMAX | 655 | 24:02:06.433 | 156.1321 | | 6th | DP | 1:44.8450 | 645 | 196.7230 |
| 7th | 77 | Gidley / Gollin / Jourdain / Servia | Doran JE4 Ford | Feeds The Need/Doran Racing | 655 | 24:02:07.969 | 156.1305 | | 7th | DP | 1:45.5630 | 278 | 195.3840 |
| 8th | 47 | Morgan / Morgan / Bernhard / Zacharias | Riley Mk XI Porsche | TruSpeed Motorsports | 636 | 24:01:49.634 | 151.6324 | | 8th | DP | 1:46.7960 | 3 | 193.1277 |
| 9th | 60 | Patterson / Negri / Castroneves / Hornish, Jr. | Riley Mk XI Lexus | Michael Shank Racing | 628 | 24:02:09.174 | 149.6915 | | 9th | DP | 1:45.5140 | 263 | 195.4758 |
| 10th | 19 | Finlay / Valiante / McDowell / Labonte | Crawford DP03 Ford | Finlay Motorsports | 627 | 23:44:50.781 | 151.2687 | Engine, ECU | 10th | DP | 1:45.4290 | 280 | 195.6319 |
| 11th | 22 | de Quesada / Dumoulin / Gabel / Basseng | Porsche 997 GT3 Cup | Alegra Motorsports/ Fiorano Racing | 626 | 24:01:23.129 | 149.2940 | | 1st | GT | 1:53.7640 | 532 | 181.2990 |
| 12th | 07 | Edwards / Collins / Pilgrim / O'Connell | Pontiac GXP.R | Banner Racing | 626 | 24:01:30.201 | 149.2828 | | 2nd | GT | 1:54.2540 | 140 | 180.5217 |
| 13th | 64 | Lowe / Pace / Van Overbeek / Kelleners | Porsche 997 GT3 Cup | TRG | 625 | 24:02:00.185 | 148.9931 | | 3rd | GT | 1:54.4550 | 196 | 180.2047 |
| 14th | 06 | Reese / Lewis, Jr. / O'Connell / Edwards | Pontiac GXP.R | Banner Racing | 624 | 24:02:03.433 | 148.7484 | | 4th | GT | 1:54.6360 | 20 | 180.8355 |
| 15th | 70 | Haskell / Tremblay / Ham / Pobst | Mazda RX-8 | SpeedSource | 624 | 24:02:03.459 | 148.7484 | | 5th | GT | 1:54.0560 | 268 | 179.9198 |
| 16th | 73 | Nielsen / Martini / Quester / Peter | Porsche 997 GT3 Cup | Tafel Racing | 617 | 24:01:11.166 | 147.1681 | | 6th | GT | 1:53.9260 | 255 | 181.0415 |
| 17th | 75 | Braun / Papis / Lehto | Riley Mk XI Pontiac | Krohn Racing | 615 | 24:01:10.370 | 146.6933 | | 11th | DP | 1:44.8170 | 310 | 196.7745 |
| 18th | 23 | Bergmeister / Dumas / Long | Crawford DP03 Porsche | Ruby Tuesday Championship Racing | 615 | 24:01:43.789 | 146.6370 | | 12th | DP | 1:45.0070 | 271 | 196.4188 |
| 19th | 69 | Assentato / Longhi / Segal / Plumb | Mazda RX-8 | SpeedSource | 612 | 24:01:13.211 | 145.9723 | | 7th | GT | 1:53.8760 | 195 | 181.1204 |
| 20th | 17 | Lacey / Wilkins / Mowlem / Papadopoulos / Arnold | Porsche 997 GT3 Cup | Doncaster Racing | 611 | 24:01:59.779 | 145.6553 | | 8th | GT | 1:53.2510 | 123 | 182.1214 |
| 21st | 76 | Krohn / Jönsson / Said | Riley Mk XI Pontiac | Krohn Racing | 607 | 24:01:08.793 | 144.7879 | | 13th | DP | 1:45.3450 | 148 | 195.7880 |
| 22nd | 35 | Constantine / Borkowski / Murry / Prewitt | Porsche 997 GT3 Cup | Playboy Racing/Unitech | 606 | 24:00:56.887 | 144.5690 | | 9th | GT | 1:54.6620 | 544 | 179.8796 |
| 23rd | 27 | O'Connell / Speakman / Bowles / Roush / Pechnik | Porsche 996 GT3 Cup | O'Connell Racing | 605 | 24:01:27.281 | 144.2793 | | 10th | GT | 1:55.0290 | 3 | 179.3051 |
| 24th | 39 | Fittipaldi / Cheever, Jr. / Collard / Maassen | Crawford DP03 Porsche | Cheever Racing | 601 | 24:02:11.385 | 143.2525 | | 14th | DP | 1:44.9600 | 135 | 196.5073 |
| 25th | 84 | Robinson / Dallenbach, Jr. / Dallenbach / Legge | Riley Mk XI Pontiac | Robinson Racing | 596 | 24:01:19.887 | 142.1453 | | 15th | DP | 1:46.5420 | 118 | 193.5896 |
| 26th | 6 | Zogaib / James / Tracy / Allmendinger | Riley Mk XI Lexus | Michael Shank Racing | 595 | 24:01:51.588 | 141.8540 | | 16th | DP | 1:44.9790 | 184 | 196.4719 |
| 27th | 81 | Johnson / Westbrook / Lietz / Huisman | Porsche 997 GT3 Cup | Synergy Racing | 590 | 24:01:32.736 | 140.6937 | | 11th | GT | 1:53.5980 | 227 | 181.5646 |
| 28th | 67 | Cloet / Bourque / Solley / Harris | Porsche 997 GT3 Cup | TRG | 588 | 24:03:10.109 | 140.0596 | | 12th | GT | 1:57.5100 | 534 | 175.5199 |
| 29th | 00 | Carpenter / Scheckter / George / Foyt / Grégoire | Crawford DP03 Porsche | Vision Racing | 587 | 23:25:37.872 | 143.5551 | Engine | 17th | DP | 1:46.4040 | 239 | 193.8407 |
| 30th | 65 | Marden / Milner / Peterson / Gomez | Porsche 997 GT3 Cup | TRG | 583 | 24:01:11.682 | 139.0586 | | 13th | GT | 1:56.2870 | 495 | 177.3658 |
| 31st | 85 | Keen / Ehret / Werner / Hardt | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 579 | 22:31:21.866 | 147.2839 | DNF | 14th | GT | 1:52.6990 | 284 | 183.0130 |
| 32nd | 51 | Newton / Erdos / Brix / Cheever, Jr. | Fabcar FDSC/03 Porsche | Cheever Racing | 579 | 24:01:16.025 | 138.0962 | | 18th | DP | 1:46.9570 | 219 | 192.8380 |
| 33rd | 68 | Ballou / DeSimone II / Jaeger / Gleason | Porsche 997 GT3 Cup | TRG | 578 | 24:03:11.759 | 137.6745 | | 15th | GT | 1:57.7900 | 399 | 175.1031 |
| 34th | 14 | Patch / McGehee / Allen / Hamblin / Friedman | Porsche 996 GT3 Cup | Autometrics Motorsports | 572 | 24:02:48.337 | 136.2825 | | 16th | GT | 1:56.8800 | 2 | 176.4662 |
| 35th | 66 | Pumpelly / Valentine / Lally / Greenberg / Buckler | Porsche 997 GT3 Cup | TRG | 563 | 24:03:10.837 | 134.1034 | | 17th | GT | 1:54.2730 | 166 | 180.4911 |
| 36th | 91 | Matthews / Goossens / Johnson / Hunter-Reay | Riley Mk XI Pontiac | Lowe's Riley-Matthews Motorsports | 560 | 21:32:46.776 | 148.9062 | Engine | 19th | DP | 1:45.1190 | 14 | 196.2096 |
| 37th | 72 | Davis / Swartzbaugh / Müller / Liddell / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 555 | 24:00:56.293 | 132.4023 | | 18th | GT | 1:53.5070 | 30 | 181.7094 |
| 38th | 87 | Zugel / Burke / Jeannette / Eversley | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 545 | 24:01:15.609 | 129.9883 | | 19th | GT | 1:54.2680 | 170 | 180.4992 |
| 39th | 74 | Lux / Henzler / Farnbacher / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 544 | 23:10:28.602 | 134.4881 | Suspension | 20th | GT | 1:52.5390 | 1 | 183.2737 |
| 40th | 58 | Donohue / Law / Rice / Sharp / Haywood | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 542 | 24:02:21.854 | 129.1740 | | 20th | DP | 1:44.0570 | 122 | 198.2116 |
| 41st | 02 | Dixon / Wheldon / Rojas | Riley Mk XI Lexus | Target Chip Ganassi with Felix Sabates | 538 | 20:02:00.611 | 153.8597 | Accident | 21st | DP | 1:45.0480 | 223 | 196.3416 |
| 42nd | 43 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 530 | 24:02:15.932 | 126.3222 | | 21st | GT | 1:57.9430 | 167 | 174.8761 |
| 43rd | 42 | Auriemma / Mayes / Kaemmer / Willcox / Varsha | Porsche 996 GT3 Cup | Team Sahlen | 514 | 24:01:12.043 | 122.5998 | | 22nd | GT | 1:57.9290 | 230 | 174.8971 |
| 44th | 89 | Wellon / Ellis / Rossi / Grande / Trinkler | Porsche 997 GT3 Cup | Autometrics Motorsports | 512 | 24:01:17.399 | 122.1154 | | 23rd | GT | 1:55.9970 | 312 | 177.8100 |
| 45th | 83 | Gaylord / Pickering / Hilton / McCrackin | Porsche 997 GT3 Cup | Synergy Racing | 508 | 24:01:40.753 | 121.1289 | | 24th | GT | 1:57.2160 | 11 | 175.9608 |
| 46th | 99 | Gurney / Fogarty / Vasser | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 493 | 21:29:06.037 | 131.4657 | Gearbox | 22nd | DP | 1:44.3950 | 243 | 197.5711 |
| 47th | 12 | Schramm / Baldwin / Lester / Bell / Heinricy | Riley Mk XI Pontiac | RVO Motorsports | 458 | 19:06:13.981 | 137.3543 | DNF | 23rd | DP | 1:47.1560 | 83 | 192.4792 |
| 48th | 20 | Wallace / Leitzinger / Stewart | Crawford DP03 Porsche | Howard Motorsports | 450 | 19:48:05.957 | 130.1991 | Accident damage | 24th | DP | 1:46.0080 | 196 | 194.5649 |
| 49th | 57 | Cicero / Bunting / Gue / Stevenson / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 444 | 24:02:38.174 | 105.7983 | | 25th | GT | 1:55.4330 | 4 | 178.6774 |
| 50th | 88 | Stanton / Miller / Charouz / Jackson / Pank | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 434 | 17:13:00.019 | 144.4241 | Accident | 26th | GT | 1:53.7330 | 3 | 181.3489 |
| 51st | 97 | Rice / Riggins / Stevenson / Trenery / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 414 | 24:02:36.773 | 98.6512 | | 27th | GT | 1:55.9690 | 125 | 177.8518 |
| 52nd | 05 | Auberlen / Alhadeff / Sigal / Wendlinger | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 367 | 14:26:01.402 | 145.6762 | DNF | 25th | DP | 1:44.7330 | 191 | 196.9322 |
| 53rd | 30 | Aschenbach / Lofton / Smith / Pavan | Pontiac GXP.R | Racers Edge Motorsports | 359 | 19:55:46.644 | 103.2040 | Accident | 28th | GT | 1:56.4950 | 3 | 177.0488 |
| 54th | 41 | Brent / Malloy / Michaelian / Michaelian / Becker | Porsche 996 GT3 Cup | Team Sahlen | 316 | 17:13:10.195 | 105.1401 | DNF | 29th | GT | 1:58.0270 | 84 | 174.7506 |
| 55th | 16 | Dyson / Dyson / Smith / Gavin | Crawford DP03 Porsche | Howard Motorsports | 295 | 9:47:12.323 | 172.6955 | Engine | 26th | DP | 1:45.2060 | 90 | 196.0471 |
| 56th | 24 | Pickett / Cotter / Montgomery / Hanson / Walker | BMW M3 E46 | Matt Connolly Motorsports | 276 | 22:02:58.231 | 71.7156 | Rear suspension | 30th | GT | 2:01.0710 | 68 | 170.3571 |
| 57th | 82 | Kitch / Pennington / Pallis / Bawcutt | Porsche 997 GT3 Cup | Synergy Racing | 250 | 11:01:46.211 | 129.8628 | Accident | 31st | GT | 1:58.3610 | 78 | 174.2582 |
| 58th | 18 | Alzen / Renauer / Borcheller / Mazzacane | Fabcar FDSC/03 Porsche | VICI Racing | 240 | 8:09:49.484 | 168.4307 | Accident | 27th | DP | 1:46.9800 | 82 | 192.7962 |
| 59th | 15 | Nastasi / Tagliani / Cosmo / Limoges | Ford Mustang Cobra GT | Blackforest Motorsports | 235 | 22:49:21.325 | 58.9937 | DNF | 32nd | GT | 1:54.9020 | 5 | 179.5046 |
| 60th | 86 | Bowman / Bell / Willsley / Price | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 232 | 24:01:18.995 | 55.3325 | | 33rd | GT | 1:54.8540 | 53 | 179.5786 |
| 61st | 45 | Wilson / Lewis / Sellers / Hand | Infiniti G35 | Howard Motorsports | 230 | 8:21:50.027 | 157.5500 | DNF | 34th | GT | 1:54.0280 | 183 | 180.8790 |
| 62nd | 3 | Lewis / Ruhlman / Rahal / Forbes-Robinson | Riley Mk XI BMW | Southard Motorsports | 214 | 6:56:19.381 | 176.6995 | Engine | 28th | DP | 1:46.8610 | 140 | 193.0102 |
| 63rd | 28 | Baas / Feinberg / McQuiston / Safina | Porsche 997 GT3 Cup | At Speed Motorsports | 196 | 10:44:53.133 | 104.4770 | DNF | 35th | GT | 1:54.8450 | 102 | 179.5931 |
| 64th | 46 | Baughman / Collyer / Connolly / Yeakle / Del Vecchio | Chevrolet Corvette | Michael Baughman Racing | 186 | 10:20:50.211 | 102.9884 | Oil pressure | 36th | GT | 2:00.4640 | 155 | 171.2165 |
| 65th | 08 | Goldin / Goldin / Finger / Zitza | Mazda RX-8 | Goldin Brothers Racing | 163 | 10:04:55.965 | 92.6258 | Gearbox | 37th | GT | 1:59.0710 | 3 | 173.2185 |
| 66th | 21 | Connolly / Pecorari / Workman / Mason / Kapudija | BMW M3 E46 | Matt Connolly Motorsports | 153 | 6:28:51.942 | 135.2509 | Engine | 38th | GT | 1:57.8320 | 13 | 175.0403 |
| 67th | 48 | Hauser / Dubler / Magner / DeFontes | Chevrolet Corvette | WTF Engineering | 89 | 16:38:09.423 | 30.6500 | DNF | 39th | GT | 2:00.7720 | 2 | 170.7787 |
| 68th | 52 | Drudi / Rosa / Ceccato / Masselli / Montermini | Ferrari 360 Modena Challenge | Mastercar | 83 | 3:01:50.077 | 156.9110 | Rear upright | 40th | GT | 1:56.6560 | 80 | 176.8041 |
| 69th | 63 | Spencer / Spencer / Grupp / Drummond / Espenlaub | Mazda RX-8 | Team Spencer Motorsports | 74 | 5:15:41.512 | 80.5782 | Withdrawn | 41st | GT | 1:54.7250 | 36 | 179.7814 |
| 49 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 0 | | | DNF | 42nd | GT | | | |