After Race Official Results by Driver Fastest Lap Pos Class Nr Team Car Driver Time Laps Gap Mph Session 1 P 6 Acura DPi 1:12.922 84 97.155 Qualifying 2 P 31 Whelen Engineering Racing DPi 1:13.109 100 0.187 96.907 Qualifying 3 P 55 Team Joest Mazda DPi 1:13.156 78 0.234 96.845 Qualifying 4 P 7 Acura Team Penske Acura DPi 1:13.217 77 0.295 96.764 Practice 2 5 P 7 Acura Team Penske Acura DPi Helio Castroneves 1:13.346 80 0.424 96.594 Qualifying 6 P 5 Mustang Sampling Racing Cadillac DPi 1:13.655 99 0.733 96.188 Practice 2 7 P 5 Mustang Sampling Racing Cadillac DPi Joao Barbosa 1:13.733 79 0.811 96.087 Qualifying 8 P 77 Mazda Team Joest Mazda DPi 1:13.743 82 0.821 96.074 Practice 1 9 P 77 Mazda Team Joest Mazda DPi Tristan Nunez 1:13.834 83 0.912 95.955 Practice 1 10 P 10 Konica Minolta Cadillac DPi-V.R Cadillac DPi 1:13.880 67 0.958 95.896 Qualifying 11 P 2 Tequila Patron ESM DPi 1:13.921 92 0.999 95.842 Practice 2 12 P 10 Konica Minolta Cadillac DPi-V.R Cadillac DPi Jordan Taylor 1:13.968 86 1.046 95.781 Practice 1 13 P 6 Acura Team Penske Acura DPi 1:14.032 61 1.110 95.699 Practice 2 14 P 2 Tequila Patron ESM Nissan DPi 1:14.177 60 1.255 95.512 Qualifying 15 P 55 Mazda Team Joest Mazda DPi 1:14.319 81 1.397 95.329 Practice 1 16 P 22 Tequila Patron ESM Nissan DPi 1:14.577 55 1.655 94.999 Practice 1 17 P 52 AFS/PR1 Mathiasen Ligier LMP2 Gustavo Yacaman 1:14.622 70 1.700 94.942 Qualifying 18 P 99 JDC-Miller Motorsports LMP2 1:14.716 78 1.794 94.823 Practice 1 19 P 22 Tequila Patron ESM Nissan DPi 1:14.821 73 1.899 94.689 Qualifying 20 P 99 JDC-Miller Motorsports ORECA LMP2 Misha Goikhberg 1:14.857 88 1.935 94.644 Race 21 P 85 JDC-Miller Motorsports ORECA LMP2 Robert Alon 1:14.873 59 1.951 94.624 Race 22 P 38 Performance Tech Motorsports ORECA LMP2 Kyle Masson 1:15.091 53 2.169 94.349 Practice 1 23 P 54 CORE autosport ORECA LMP2 Colin Braun 1:15.326 90 2.404 94.055 Practice 2 24 P 31 Whelen Engineering Racing Cadillac DPi 1:15.406 69 2.484 93.955 Practice 1 25 P 52 AFS/PR1 Mathiasen Motorsports Ligier LMP2 Sebastian Saavedra 1:15.469 88 2.547 93.876 Race 26 P 85 JDC-Miller Motorsports ORECA LMP2 Simon Trummer 1:15.567 44 2.645 93.755 Practice 2 27 P 38 Performance Tech Motorsports ORECA LMP2 James French 1:15.642 40 2.720 93.662 Practice 1 28 P 54 CORE autosport ORECA LMP2 Jonathan Bennett 1:16.333 63 3.411 92.814 Race 29 GTLM 66 Ford Racing Ford GT 1:16.869 84 3.947 92.167 Qualifying 30 GTLM 912 GT Team Porsche 911 RSR Laurens Vanthoor 1:17.013 77 4.091 91.994 Qualifying 31 GTLM 911 Porsche GT Team Porsche 911 RSR Patrick Pilet 1:17.263 87 4.341 91.697 Qualifying 32 GTLM 3 Corvette Racing Corvette C7.R Jan Magnussen 1:17.293 87 4.371 91.661 Qualifying 33 GTLM 4 Corvette Racing C7.R Oliver Gavin 1:17.533 86 4.611 91.377 Qualifying 34 GTLM 67 Ford Ford GT Richard Westbrook 1:17.549 79 4.627 91.358 Qualifying 35 GTLM 67 Ford Chip Ganassi Racing Ford GT 1:17.898 74 4.976 90.949 Practice 1 36 GTLM 24 BMW Team RLL BMW M8 GTE Jesse Krohn 1:17.972 73 5.050 90.863 Race 37 GTLM 66 Ford Chip Ganassi Racing Ford GT Dirk Mueller 1:17.993 72 5.071 90.838 Practice 1

4/17/2018 10:05 AM Page 1 / 2 After Race Official Results by Driver Fastest Lap Pos Class Nr Team Car Driver Time Laps Gap Mph Session 38 GTLM 912 Porsche GT Team Porsche 911 RSR Earl Bamber 1:18.012 64 5.090 90.816 Practice 1 39 GTLM 25 BMW Team RLL BMW M8 GTE Connor De Phillippi 1:18.144 63 5.222 90.663 Practice 2 40 GTLM 3 Corvette Racing Chevrolet Corvette C7.R Antonio Garcia 1:18.474 78 5.552 90.282 Race 41 GTLM 911 Porsche GT Team Porsche 911 RSR 1:18.543 75 5.621 90.202 Race 42 GTLM 4 Corvette Racing Chevrolet Corvette C7.R Tommy Milner 1:18.594 81 5.672 90.144 Race 43 GTLM 25 BMW Team RLL BMW M8 GTE Alexander Sims 1:18.928 47 6.006 89.762 Race 44 GTLM 24 BMW Team RLL BMW M8 GTE John Edwards 1:18.979 82 6.057 89.704 Race

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4/17/2018 10:05 AM Page 2 / 2