| 1st | 99 | Gurney / Fogarty | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 167 | 6:01:39.607 | 151.5986 | | 1st | DP | 1:43.6100 | 7 |
| 2nd | 01 | Pruett / Rojas / Festa | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 167 | 6:01:46.676 | 151.5487 | | 2nd | DP | 1:44.3050 | 10 |
| 3rd | 10 | Taylor / Angelelli / Cochet | Riley Mk XI Pontiac | SunTrust Racing | 167 | 6:01:50.192 | 151.5246 | | 3rd | DP | 1:43.8990 | 47 |
| 4th | 6 | Pew / James | Riley Mk XI Lexus | Michael Shank Racing | 167 | 6:02:00.454 | 151.4538 | | 4th | DP | 1:45.3910 | 137 |
| 5th | 76 | Braun / Krohn / Jönsson | Riley Mk XI Pontiac | Krohn Racing | 167 | 6:02:01.302 | 151.4473 | | 5th | DP | 1:44.9500 | 163 |
| 6th | 91 | Matthews / Goossens / Hunter-Reay | Riley Mk XI Pontiac | Riley-Matthews Motorsports | 167 | 6:02:08.908 | 151.3942 | | 6th | DP | 1:45.0110 | 135 |
| 7th | 19 | Finlay / Valiante / Festa | Riley Mk XI Lexus | Chip Ganassi with Felix Sabates | 167 | 6:02:09.166 | 151.3926 | | 7th | DP | 1:44.6810 | 164 |
| 8th | 23 | Bergmeister / Long | Crawford DP03 Porsche | Alex Job Racing | 167 | 6:02:20.245 | 151.3154 | | 8th | DP | 1:44.6190 | 92 |
| 9th | 58 | Donohue / Law | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 167 | 6:02:21.331 | 151.3073 | | 9th | DP | 1:45.2870 | 115 |
| 10th | 77 | Gidley / Cosmo | Doran JE4 Ford | Feeds The Need/Doran Racing | 167 | 6:02:21.897 | 151.3041 | | 10th | DP | 1:45.4720 | 8 |
| 11th | 60 | Patterson / Negri | Riley Mk XI Lexus | Michael Shank Racing | 167 | 6:02:22.824 | 151.2977 | | 11th | DP | 1:45.0970 | 19 |
| 12th | 75 | Braun / Papis / Jönsson | Riley Mk XI Pontiac | Krohn Racing | 167 | 6:02:23.327 | 151.2944 | | 12th | DP | 1:44.5750 | 9 |
| 13th | 3 | Lewis / Ruhlman | Riley Mk XI Lexus | Southard Motorsports | 167 | 6:02:23.729 | 151.2912 | | 13th | DP | 1:46.3100 | 161 |
| 14th | 61 | Frisselle / Wilkins / Frisselle | Riley Mk XI Lexus | AIM Autosport | 167 | 6:03:03.105 | 151.0176 | | 14th | DP | 1:45.4630 | 8 |
| 15th | 05 | Auberlen / Alhadeff / Hand | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 165 | 6:02:17.817 | 149.5193 | | 15th | DP | 1:45.0320 | 17 |
| 16th | 59 | France / Haywood / Barbosa | Riley Mk XI Porsche | Brumos Porsche/Kendall | 165 | 6:02:19.040 | 149.5113 | | 16th | DP | 1:44.9330 | 19 |
| 17th | 12 | Schramm / Bell | Riley Mk XI Pontiac | RVO Motorsports | 161 | 6:03:25.706 | 145.4413 | | 17th | DP | 1:48.1900 | 115 |
| 18th | 39 | Fittipaldi / Brix / Garcia | Fabcar FDSC/03 Porsche | Cheever Racing | 160 | 6:02:24.265 | 144.9456 | | 18th | DP | 1:44.7620 | 118 |
| 19th | 66 | Lally / Pumpelly / Valentine | Porsche 997 GT3 Cup | TRG | 160 | 6:02:26.986 | 144.9279 | | 1st | GT | 1:54.2080 | 155 |
| 20th | 87 | Miller / Werner / Stanton | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 160 | 6:02:29.535 | 144.9102 | | 2nd | GT | 1:54.1160 | 153 |
| 21st | 07 | Edwards / Collins / Pilgrim | Pontiac GXP.R | Banner Racing | 160 | 6:02:38.187 | 144.8522 | | 3rd | GT | 1:53.8730 | 150 |
| 22nd | 81 | Johnson / Westbrook | Porsche 997 GT3 Cup | Synergy Racing | 160 | 6:02:41.736 | 144.8297 | | 4th | GT | 1:55.2170 | 151 |
| 23rd | 26 | de Quesada / Dumoulin / Gabel | Porsche 997 GT3 Cup | Alegra Motorsports/Fiorano Racing | 160 | 6:03:06.794 | 144.6623 | | 5th | GT | 1:55.6790 | 128 |
| 24th | 16 | Dyson / Dyson / Leitzinger | Crawford DP03 Porsche | Howard Motorsports | 160 | 6:03:11.033 | 144.6350 | | 19th | DP | 1:46.2660 | 81 |
| 25th | 74 | Lux / Henzler | Porsche 997 GT3 Cup | Tafel Racing | 160 | 6:03:38.133 | 144.4547 | | 6th | GT | 1:53.9420 | 81 |
| 26th | 06 | Reese / Pilgrim / Lewis, Jr. | Pontiac GXP.R | Banner Racing | 159 | 6:02:12.243 | 144.1200 | | 7th | GT | 1:54.6850 | 10 |
| 27th | 69 | Assentato / Snyder / Segal | Mazda RX-8 | SpeedSource | 159 | 6:03:06.748 | 143.7595 | | 8th | GT | 1:54.8870 | 19 |
| 28th | 17 | Wilkins / Papadopoulos / Julien | Porsche 997 GT3 Cup | Doncaster Racing | 159 | 6:03:22.456 | 143.6549 | | 9th | GT | 1:56.2410 | 147 |
| 29th | 14 | Friedman / Skea / Smith | Porsche 997 GT3 Cup | Autometrics Motorsports | 157 | 6:02:13.454 | 142.2982 | | 10th | GT | 1:57.2300 | 6 |
| 30th | 27 | O'Connell / Speakman | Porsche 997 GT3 Cup | O'Connell Racing | 156 | 6:03:20.176 | 140.9592 | | 11th | GT | 1:58.1120 | 6 |
| 31st | 57 | Bunting / Cicero | Chevrolet Corvette | Stevenson Motorsports | 150 | 6:02:45.533 | 135.7546 | | 12th | GT | 1:55.4930 | 5 |
| 32nd | 85 | Farnbacher / Keen / Stanton | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 145 | 5:33:39.025 | 142.6780 | DNF | 13th | GT | 1:54.8260 | 10 |
| 33rd | 28 | Baas / White / Miller | Porsche 997 GT3 Cup | At Speed Motorsports | 143 | 5:47:50.823 | 134.9660 | DNF | 14th | GT | 1:56.0590 | 44 |
| 34th | 65 | Smith / DiLeo / Sellers | Porsche 997 GT3 Cup | TRG | 134 | 5:02:49.036 | 145.2787 | DNF | 15th | GT | 1:55.0890 | 35 |
| 35th | 97 | Riggins / Rice / Gue | Chevrolet Corvette | Stevenson Motorsports | 132 | 5:02:46.058 | 143.1335 | DNF | 16th | GT | 1:57.2910 | 83 |
| 36th | 43 | Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 129 | 6:03:06.594 | 116.6356 | | 17th | GT | 1:56.5820 | 42 |
| 37th | 67 | Potter / Marden / Milner | Porsche 997 GT3 Cup | TRG | 122 | 6:02:40.579 | 110.4380 | | 18th | GT | 1:58.5350 | 16 |
| 38th | 72 | Swartzbaugh / Liddell / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 96 | 3:43:44.807 | 140.8627 | DNF | 19th | GT | 1:55.1290 | 54 |
| 39th | 64 | Lowe / Pace | Porsche 997 GT3 Cup | TRG | 90 | 4:05:57.300 | 120.1343 | Transmission | 20th | GT | 1:56.6860 | 36 |
| 40th | 42 | Sahlen / Nonnamaker | Chevrolet Corvette | Team Sahlen | 71 | 2:53:03.351 | 134.6956 | DNF | 21st | GT | 1:58.3440 | 6 |
| 41st | 70 | Haskell / Tremblay / Ham | Mazda RX-8 | SpeedSource | 45 | 1:41:57.941 | 144.8892 | Accident | 22nd | GT | 1:54.9350 | 19 |
| 42nd | 21 | Connolly / Prewitt / Price | Pontiac GTO.R | Matt Connolly Motorsports | 44 | 1:43:10.085 | 140.0194 | DNF | 23rd | GT | 1:55.7520 | 9 |
| 43rd | 30 | Staveley / Aschenbach / Pavan | Pontiac GXP.R | Racers Edge Motorsports | 19 | 39:43.113 | 157.0511 | Accident | 24th | GT | 1:54.4710 | 14 |
| 44th | 11 | Carpentier / Bessette / Enge | Riley Mk XI Pontiac | SAMAX Motorsport | 14 | 28:23.633 | 161.8759 | Engine | 20th | DP | 1:45.4560 | 9 |
| 45th | 24 | Michaelian / Workman / George, Jr. | BMW M3 | Matt Connolly Motorsports | 1 | 3:51:42.236 | 1.4162 | DNF | 25th | GT | 2:41.1940 | 1 |