Practice 1 Results * Italic: Fastest Lap Driver Pos Pic Nr. Class Drivers* Team Car Time Lap Total Gap Mph 1 1 6 DPi D. Cameron / J. Montoya Acura DPi 1:41.568 15 18 - - 80.032 2 1 912 GTLM E. Bamber / L. Vanthoor Porsche GT Team Porsche 911 RSR 1:42.230 19 23 +0.662 +0.662 79.514 3 2 25 GTLM T. Blomqvist / C. De Phillippi BMW Team RLL BMW M8 GTE 1:44.438 11 22 +2.870 +2.208 77.833 4 2 54 DPi J. Bennett / C. Braun CORE autosport Nissan DPi 1:44.615 14 15 +3.047 +0.177 77.701 5 3 7 DPi H. Castroneves / R. Taylor Acura Team Penske Acura DPi 1:45.426 15 19 +3.858 +0.811 77.104 6 3 4 GTLM O. Gavin / T. Milner Corvette Racing Corvette C7.R 1:46.263 16 20 +4.695 +0.837 76.496 7 4 911 GTLM P. Pilet / N. Tandy Porsche GT Team Porsche 911 RSR 1:46.604 19 23 +5.036 +0.341 76.252 8 1 86 GTD M. Farnbacher / T. Hindman w/ Curb-Agajanian Acura NSX GT3 1:46.649 4 6 +5.081 +0.045 76.219 9 2 9 GTD S. Hargrove / Z. Robichon Pfaff Motorsports Porsche 911 GT3 R 1:47.047 8 12 +5.479 +0.398 75.936 10 3 19 GTD W. Hardeman / A. Riberas Moorespeed Audi R8 LMS GT3 1:47.051 11 21 +5.483 +0.004 75.933 11 4 14 GTD R. Heistand / J. Hawksworth AIM Vasser Sullivan Lexus RC F GT3 1:47.532 12 24 +5.964 +0.481 75.594 12 5 96 GTD B. Auberlen / R. Foley Turner Motorsport BMW M6 GT3 1:47.640 16 25 +6.072 +0.108 75.518 13 6 76 GTD P. Holton / M. Plumb Compass Racing McLaren 720S GT3 1:48.260 17 18 +6.692 +0.620 75.085 14 7 12 GTD F. Montecalvo / T. Bell AIM Vasser Sullivan Lexus RC F GT3 1:48.739 10 22 +7.171 +0.479 74.754 15 8 48 GTD B. Sellers / R. Hardwick Paul Miller Racing Lamborghini Huracan GT3 1:49.577 5 21 +8.009 +0.838 74.183 16 9 44 GTD J. Potter / A. Lally Magnus Racing Lamborghini Huracan GT3 1:49.709 3 5 +8.141 +0.132 74.093 17 10 63 GTD C. MacNeil / T. Vilander Scuderia Corsa Ferrari 488 GT3 1:50.616 10 17 +9.048 +0.907 73.486 18 11 74 GTD G. Robinson V / L. Aschenbach Lone Star Racing Mercedes-AMG 1:52.262 13 16 +10.694 +1.646 72.408 19 12 8 GTD P. Chase / R. Dalziel Starworks Motorsport Audi R8 LMS GT3 1:54.092 3 4 +12.524 +1.830 71.247 20 13 57 GTD K. Legge / C. Nielsen Heinricher Racing w/Meyer Shank Racing Acura NSX GT3 1:54.120 5 6 +12.552 +0.028 71.230 21 5 3 GTLM J. Magnussen / A. Garcia Corvette Racing Chevrolet Corvette C7.R 1:55.261 4 6 +13.693 +1.141 70.524 22 4 77 DPi O. Jarvis / T. Nunez Team Joest Mazda DPi 1:57.821 3 4 +16.253 +2.560 68.992 23 5 5 DPi J. Barbosa / F. Albuquerque Mustang Sampling Racing Cadillac DPi 24 6 10 DPi R. Van Der Zande / J. Taylor Konica Minolta Cadillac DPi-V.R. Cadillac DPi 25 6 24 GTLM J. Krohn / J. Edwards BMW Team RLL BMW M8 GTE 2 26 7 31 DPi F. Nasr / P. Derani Whelen Engineering Racing Cadillac DPi 27 14 33 GTD B. Keating / J. Bleekemolen Riley Motorsports - Team AMG Mercedes-AMG GT3 28 1 38 LMP2 K. Masson / C. Cassels Performance Tech Motorsports ORECA LMP2 29 8 50 DPi W. Owen / K. Kaiser Cadillac DPi 30 2 52 LMP2 M. McMurry / E. Lux PR1 Mathiasen Motorsports ORECA LMP2 31 9 55 DPi J. Bomarito / R. Hunter-Reay Mazda Team Joest Mazda DPi 2 32 7 66 GTLM S. Bourdais / D. Mueller Ford Racing Ford GT 2 33 8 67 GTLM R. Briscoe / R. Westbrook Ford Ford GT 1 34 15 73 GTD P. Long / M. Seefried Park Place Motorsports Porsche 911 GT3 R 3 35 10 84 DPi S. Trummer / S. Simpson JDC-Miller MotorSports Cadillac DPi 36 11 85 DPi M. Goikhberg / T. Vautier JDC-Miller MotorSports Cadillac DPi

03-May-19 11:22 AM Page 1 / 2 Practice 1 Results * Italic: Fastest Lap Driver Pos Pic Nr. Class Drivers* Team Car Time Lap Total Gap Mph

Fastest Laps by Class Circuit Best Laps by Class DPi Lap 15 1:41.568 80.032 Mph GTLM John Edwards 05-05-2018 1:17.853 104.3 Mph GTLM Lap 19 1:42.230 79.514 Mph GTD Jack Hawksworth 05-05-2018 1:19.317 102.4 Mph GTD Trent Hindman Lap 4 1:46.649 76.219 Mph DPi Juan Pablo Montoya 05-03-2019 1:41.568 80.0 Mph

Track Status: WET 03-May-19 11:22 AM Page 2 / 2