| 1 | GTPP1 | | Aston Martin Valkyrie AMR-LMH | 486 | Class leader | 291 | 1:09.984 | 66x | +46 |
| 2 | GTPP2 | | Ferrari 499P | 486 | same lap | 59 | 1:10.456 | 48x | +41 |
| 3 | GTPP3 | GTPP3 in class SRC at Purdue - Gold J. C, name hidden·D. S, name hidden·H. W, name hidden·N. G, name hidden | Porsche 963 GTP | 483 | −3 L | 82 | 1:08.974FL | 91x | +17 |
| 4 | GTPP4 | GTPP4 in class RJRC Motorsports C. S, name hidden·R. N, name hidden·J. A, name hidden | Porsche 963 GTP | 477 | −9 L | 33 | 1:09.278 | 86x | +22 |
| 5 | GTPP5 | | Cadillac V-Series.R GTP | 467 | −19 L | – | 1:10.401 | 40x | +14 |
| 6 | GTPP6 | | Porsche 963 GTP | 467 | −19 L | – | 1:09.249 | 102x | +9 |
| 7 | GTPP7 | | Cadillac V-Series.R GTP | 459 | −27 L | – | 1:09.981 | 107x | +11 |
| 8 | Dallara P217P1 | Dallara P217P1 in class Bottom Split Racing C. B, name hidden·I. R, name hidden·S. P, name hidden·G. W, name hidden·J. B, name hidden | Dallara P217 | 456 | Class leader | – | 1:13.124 | 64x | +15 |
| 9 | GTPP8 | GTPP8 in class Braking Bad/NAMS A. D, name hidden·R. F, name hidden·B. B, name hidden | Aston Martin Valkyrie AMR-LMH | 453 | −33 L | – | 1:09.281 | 89x | +3 |
| 10 | Dallara P217P2 | | Dallara P217 | 452 | −4 L | – | 1:13.720 | 75x | +21 |
| 11 | Dallara P217P3 | Dallara P217P3 in class Torque Motorsport J. C, name hidden·E. M, name hidden·F. T, name hidden·A. P, name hidden·R. D, name hidden·J. F, name hidden | Dallara P217 | 448 | −8 L | – | 1:13.407 | 80x | +8 |
| 12 | Dallara P217P4 | Dallara P217P4 in class Tardy Performance H. G, name hidden·D. K, name hidden·R. G, name hidden | Dallara P217 | 448 | −8 L | – | 1:13.769 | 91x | +10 |
| 13 | Dallara P217P5 | | Dallara P217 | 443 | −13 L | – | 1:13.676 | 117x | +2 |
| 14 | IMSA23P1 | | Mercedes-AMG GT3 2020 | 442 | Class leader | – | 1:18.549 | 37x | +48 |
| 15 | Dallara P217P6 | Dallara P217P6 in class Dive Bombers C. F, name hidden·L. S, name hidden | Dallara P217 | 442 | −14 L | – | 1:14.258 | 104x | +5 |
| 16 | IMSA23P2 | | Porsche 911 GT3 R (992) | 442 | same lap | – | 1:18.185 | 49x | +30 |
| 17 | IMSA23P3 | | Chevrolet Corvette Z06 GT3.R | 441 | −1 L | – | 1:18.165 | 34x | +24 |
| 18 | Dallara P217P7 | Dallara P217P7 in class Lektrik Racing F. L, name hidden·M. L, name hidden·X. G, name hidden | Dallara P217 | 440 | −16 L | – | 1:13.221 | 94x | −10 |
| 19 | IMSA23P4 | IMSA23P4 in class FRITOSPORT YELLOW N. K, name hidden·J. C, name hidden·J. C, name hidden·T. W, name hidden·L. W, name hidden | Ford Mustang GT3 | 438 | −4 L | – | 1:18.750 | 57x | +13 |
| 20 | IMSA23P5 | | Aston Martin Vantage GT3 EVO | 438 | −4 L | – | 1:18.565 | 69x | +31 |
| 21 | IMSA23P6 | IMSA23P6 in class Texas Motorsport T. A, name hidden·S. M, name hidden·J. M, name hidden·T. G, name hidden | Porsche 911 GT3 R (992) | 437 | −5 L | – | 1:18.664 | 45x | +14 |
| 22 | IMSA23P7 | | McLaren 720S GT3 EVO | 437 | −5 L | – | 1:18.357 | 78x | +16 |
| 23 | IMSA23P8 | | BMW M4 GT3 EVO | 436 | −6 L | – | 1:18.546 | 75x | +20 |
| 24 | IMSA23P9 | | McLaren 720S GT3 EVO | 435 | −7 L | – | 1:17.867 | 49x | +16 |
| 25 | IMSA23P10 | | Ferrari 296 GT3 | 434 | −8 L | – | 1:18.272 | 55x | +12 |
| 26 | IMSA23P11 | IMSA23P11 in class Twin Flame A. W, name hidden·H. R, name hidden·J. S, name hidden | McLaren 720S GT3 EVO | 433 | −9 L | – | 1:18.210 | 58x | +7 |
| 27 | IMSA23P12 | IMSA23P12 in class PT Racerz Esports X. L, name hidden·R. N, name hidden·A. G, name hidden | Ferrari 296 GT3 | 431 | −11 L | – | 1:18.314 | 89x | +1 |
| 28 | IMSA23P13 | IMSA23P13 in class SWARM Racing Hive D. C, name hidden·D. J, name hidden·J. M, name hidden·S. S, name hidden | McLaren 720S GT3 EVO | 430 | −12 L | – | 1:18.791 | 47x | +1 |
| 29 | IMSA23P14 | | Ferrari 296 GT3 | 430 | −12 L | – | 1:18.019 | 95x | −1 |
| 30 | IMSA23P15 | IMSA23P15 in class Deuces Racing D. R, name hidden·C. W, name hidden·J. H, name hidden | Ferrari 296 GT3 | 428 | −14 L | – | 1:18.440 | 70x | −5 |
| 31 | IMSA23P16 | | Ferrari 296 GT3 | 428 | −14 L | – | 1:17.802 Class FL | 93x | −15 |
| 32 | IMSA23P17 | | McLaren 720S GT3 EVO | 428 | −14 L | – | 1:18.101 | 73x | −10 |
| 33 | IMSA23P18 | IMSA23P18 in class Hostile Hokies R. S, name hidden·G. T, name hidden·C. M, name hidden | BMW M4 GT3 EVO | 424 | −18 L | – | 1:18.257 | 110x | −15 |
| 34 | IMSA23P19 | | Ferrari 296 GT3 | 423 | −19 L | – | 1:17.814 | 74x | −17 |
| 35 | IMSA23P20 | IMSA23P20 in class ExO Racing P. K, name hidden·F. R, name hidden·P. K, name hidden | BMW M4 GT3 EVO | 422 | −20 L | – | 1:18.484 | 106x | −17 |
| 36 | IMSA23P21 | | McLaren 720S GT3 EVO | 420 | −22 L | – | 1:18.297 | 86x | −31 |
| 37 | Dallara P217P8 | Dallara P217P8 in class ESM Velocity M. P, name hidden·T. W, name hidden·L. B, name hidden | Dallara P217 | 414 | −42 L | – | 1:12.662 Class FL | 116x | −13 |
| 38 | Dallara P217P9 | Dallara P217P9 in class Team 8's A. H, name hidden·W. C, name hidden | Dallara P217 | 413 | −43 L | – | 1:13.766 | 114x | −13 |
| 39 | IMSA23P22 | | Porsche 911 GT3 R (992) | 327 | −115 L | – | 1:18.296 | 147x | −23 |
| 40 | GTPP9 | | Porsche 963 GTP | 307 | −179 L | – | 1:10.241 | 93x | +1 |
| 41 | IMSA23P23 | IMSA23P23 in class JPA Motorsport GoldDNF A. K, name hidden·P. G, name hidden·J. C, name hidden | BMW M4 GT3 EVO | 270 | −172 L | – | 1:18.824 | 71x | −24 |
| 42 | GTPP10 | GTPP10 in class ADRAe BlackDNF A. F, name hidden·A. G, name hidden·M. M, name hidden | Aston Martin Valkyrie AMR-LMH | 268 | −218 L | – | 1:10.328 | 55x | −5 |
| 43 | GTPP11 | | BMW M Hybrid V8 (Evo) | 183 | −303 L | 21 | 1:10.048 | 50x | −12 |
| 44 | IMSA23P24 | | Porsche 911 GT3 R (992) | 140 | −302 L | – | 1:18.659 | 41x | −40 |
| 45 | GTPP12 | | Porsche 963 GTP | 129 | −357 L | – | 1:10.585 | 24x | −21 |
| 46 | GTPP13 | GTPP13 in class SLSDNF S. S, name hidden | Cadillac V-Series.R GTP | 265 | −221 L | – | 1:10.422 | 83x | −48 |
| 47 | Dallara P217P10 | Dallara P217P10 in class MTM Potosino BDNF A. O, name hidden·A. Z, name hidden | Dallara P217 | 50 | −406 L | – | 1:14.951 | 19x | −33 |
| 48 | GTPP14 | GTPP14 in class AV PWDNF R. C, name hidden·J. M, name hidden | Ferrari 499P | 47 | −439 L | – | 1:11.008 | 18x | −38 |
| 49 | GTPP15 | GTPP15 in class 45 RacingDNF A. B, name hidden·L. D, name hidden·E. K, name hidden | Aston Martin Valkyrie AMR-LMH | 39 | −447 L | – | 1:10.888 | 25x | −24 |
| 50 | GTPP16 | GTPP16 in class SM CORSE SMDNF S. D, name hidden·S. M, name hidden | Aston Martin Valkyrie AMR-LMH | 35 | −451 L | – | 1:10.270 | 12x | −39 |
| 51 | Dallara P217P11 | Dallara P217P11 in class #1 GT3 H8ERSDNF D. A, name hidden·D. P, name hidden | Dallara P217 | 32 | −424 L | – | 1:14.377 | 14x | −37 |
| 52 | GTPP17 | | BMW M Hybrid V8 (Evo) | 31 | −455 L | – | 1:10.993 | 2x | −27 |
| 53 | IMSA23P25 | IMSA23P25 in class CWL Racing TeamDNF A. Z, name hidden·J. G, name hidden·K. R, name hidden | Chevrolet Corvette Z06 GT3.R | 11 | −431 L | – | 1:19.861 | 6x | −37 |
| 54 | GTPP18 | | Acura ARX-06 GTP | 0 | −486 L | – | — | 0x | ±0 |
| 55 | Dallara P217P12 | Dallara P217P12 in class CKR MotorSportsDNF J. S, name hidden·E. S, name hidden | Dallara P217 | 0 | −456 L | – | — | 0x | ±0 |
| 56 | IMSA23P26 | | Ferrari 296 GT3 | 0 | −442 L | – | — | 0x | ±0 |