Friday Rolex 24 Test Times – Session 2
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| Kamui Kobayashi |
Kamui Kobayashi turned in the fastest lap of Session 2 at the Roar Before the 24 in the No. 10 Wayne Taylor Racing Cadillac DPi-V.R.
The Japanese driver’s session-best time of 1:36.696 was a mere 0.008 seconds faster than Jonathan Bomarito in the No. 55 Mazda Team Joest Mazda RT24-P, while Timo Bernhard completed the top-three in the sister Mazda DPi a further 0.234 seconds back.
Agustin Canapino and Helio Castroneves driving for Juncos Racing and Acura Team Penske were fourth and fifth, respectively.
Afternoon Times
| Pos | Pic | No. | Class | Drivers | Car | Time | Behind |
| 1 | 1 | 10 | DPi | R. Van Der Zande / J. Taylor/F. Alonso / K. Kobayashi | Cadillac DPi | 1:36.596 | +0.000s |
| 2 | 2 | 55 | DPi | J. Bomarito / H. Tincknell / O. Pla | Mazda DPi | 1:36.604 | +0.008 |
| 3 | 3 | 77 | DPi | O. Jarvis / T. Nunez / T. Bernhard/R. Rast | Mazda DPi | 1:36.838 | +0.242 |
| 4 | 4 | 50 | DPi | W. Owen / R. Binder / A. Canapino/K. Kaiser | Cadillac DPi | 1:37.128 | +0.532 |
| 5 | 5 | 7 | DPi | H. Castroneves / R. Taylor / A. Rossi | Acura DPi | 1:37.174 | +0.578 |
| 6 | 6 | 31 | DPi | F. Nasr / P. Derani / E. Curran | Cadillac DPi | 1:37.187 | +0.591 |
| 7 | 7 | 5 | DPi | J. Barbosa / M. Conway/F. Albuquerque / C. Fittipaldi | Cadillac DPi | 1:37.202 | +0.606 |
| 8 | 8 | 54 | DPi | J. Bennett / C. Braun / R. Dumas/L. Duval | Nissan DPi | 1:37.522 | +0.926 |
| 9 | 9 | 85 | DPi | M. Goikhberg / T. Vautier/D. DeFrancesco / R. Barrichello | Cadillac DPi | 1:38.036 | +1.440 |
| 10 | 10 | 6 | DPi | J. Montoya / D. Cameron/S. Pagenaud | Acura DPi | 1:38.098 | +1.502 |
| 11 | 1 | 52 | LMP2 | M. McMurry / G. Aubry | ORECA LMP2 | 1:39.575 | +2.979 |
| 12 | 2 | 81 | LMP2 | H. Hedman / B. Hanley / N. Lapierre | ORECA LMP2 | 1:39.788 | +3.192 |
| 13 | 11 | 84 | DPi | S. Trummer / S. Simpson / C. Miller/J. Piedrahita | Cadillac DPi | 1:41.135 | +4.539 |
| 14 | 3 | 38 | LMP2 | K. Masson / K. Wright / C. Cassels/R. Masson | ORECA LMP2 | 1:41.312 | +4.716 |
| 15 | 1 | 62 | GTLM | D. Rigon / M. Molina | Ferrari 488 GTE | 1:44.718 | +8.122 |
| 16 | 2 | 67 | GTLM | R. Briscoe / R. Westbrook / S. Dixon | Ford GT | 1:44.849 | +8.253 |
| 17 | 3 | 3 | GTLM | J. Magnussen / A. Garcia/M. Rockenfeller | Chevrolet Corvette C7.R | 1:44.882 | +8.286 |
| 18 | 4 | 911 | GTLM | P. Pilet / N. Tandy / F. Makowiecki | Porsche 911 RSR | 1:45.107 | +8.511 |
| 19 | 5 | 912 | GTLM | M. Jaminet / E. Bamber | Porsche 911 RSR | 1:45.122 | +8.526 |
| 20 | 6 | 4 | GTLM | O. Gavin / T. Milner / M. Fassler | Chevrolet Corvette C7.R | 1:45.233 | +8.637 |
| 21 | 7 | 66 | GTLM | J. Hand / D. Mueller / S. Bourdais | Ford GT | 1:45.407 | +8.811 |
| 22 | 8 | 25 | GTLM | T. Blomqvist / C. De Phillippi / P. Eng/C. Herta | BMW M8 GTE | 1:45.621 | +9.025 |
| 23 | 9 | 24 | GTLM | J. Krohn / J. Edwards / C. Mostert/A. Zanardi | BMW M8 GTE | 1:45.642 | +9.046 |
| 24 | 1 | 33 | GTD | B. Keating / J. Bleekemolen / L. Stolz/F. Fraga | Mercedes-AMG GT3 | 1:46.452 | +9.856 |
| 25 | 2 | 51 | GTD | P. Dalla Lana / P. Lamy / M. Lauda/D. Serra | Ferrari 488 GT3 | 1:46.786 | +10.190 |
| 26 | 3 | 96 | GTD | B. Auberlen / R. Foley / D. Machavern/J. Klingmann | BMW M6 GT3 | 1:47.004 | +10.408 |
| 27 | 4 | 57 | GTD | J. Heinricher / K. Legge/S. De Silvestro / A. Figueiredo/C. Nielsen | Acura NSX GT3 | 1:47.022 | +10.426 |
| 28 | 5 | 14 | GTD | R. Heistand / J. Hawksworth/A. Cindric / N. Cassidy | Lexus RC F GT3 | 1:47.122 | +10.526 |
| 29 | 6 | 29 | GTD | D. Morad / R. Feller / D. Vanthoor | Audi R8 LMS GT3 | 1:47.251 | +10.655 |
| 30 | 7 | 13 | GTD | C. Longo / V. Coelho Franzoni Da Silva/M. Gomes | Ferrari 488 GT3 | 1:47.444 | +10.848 |
| 31 | 8 | 9 | GTD | S. Hargrove / Z. Robichon / L. Kern/D. Olsen | Porsche 911 GT3 R | 1:47.603 | +11.007 |
| 32 | 9 | 86 | GTD | M. Farnbacher / T. Hindman / J. Marks/A. Allmendinger | Acura NSX GT3 | 1:47.687 | +11.091 |
| 33 | 10 | 11 | GTD | R. Ineichen / M. Bortolotti/C. Engelhart / K. Ling | Lamborghini Huracan GT3 | 1:47.738 | +11.142 |
| 34 | 11 | 540 | GTD | T. Pappas / M. Seefried / M. Cairoli/D. Werner | Porsche 911 GT3 R | 1:47.740 | +11.144 |
| 35 | 12 | 8 | GTD | P. Chase / R. Dalziel/E. Perez Companc / C. Haase | Audi R8 LMS GT3 | 1:47.786 | +11.190 |
| 36 | 13 | 71 | GTD | M. Buhk / F. Schiller / D. Baumann/J. Perez | Mercedes-AMG GT3 | 1:48.098 | +11.502 |
| 37 | 14 | 44 | GTD | J. Potter / A. Lally / S. Pumpelly/M. Mapelli | Lamborghini Huracan GT3 | 1:48.220 | +11.624 |
| 38 | 15 | 63 | GTD | MacNeil / T. Vilander / J. Westphal/Farnbacher | Ferrari 488 GT3 | 1:48.260 | +11.664 |
| 39 | 16 | 48 | GTD | B. Sellers / R. Hardwick / C. Lewis/A. Caldarelli | Lamborghini Huracan GT3 | 1:48.342 | +11.746 |
| 40 | 17 | 99 | GTD | Haering / S. Goerig / S. Muller/Bachler / A. Renauer | Porsche 911 GT3 R | 1:48.424 | +11.828 |
| 41 | 18 | 47 | GTD | S. Dunn / B. Gdovic / L. Lundqvist/M. Pavlovic / D. Yount | Lamborghini Huracan GT3 | 1:48.649 | +12.053 |
| 42 | 19 | 19 | GTD | W. Hardeman / A. Riberas / A. Davis/M. Winkelhock | Audi R8 LMS GT3 | 1:48.803 | +12.207 |
| 43 | 20 | 12 | GTD | F. Montecalvo / T. Bell / A. Telitz/J. Segal | Lexus RC F GT3 | 1:48.859 | +12.263 |
| 44 | 21 | 46 | GTD | E. Busnelli / F. Babini | Lamborghini Huracan GT3 | 1:49.068 | +12.472 |