Below are the fastest lap times for each driver for the day.
Friday – April 6, 2018
Course: Buttonwillow Raceway (13cw)
| Ranking | Lap Time | Name | Laps | Vehicle | Fast Lap |
| 1 | 01:38.634 | Jon VanCaneghem | 66 | G57 | 60 |
| 2 | 01:49.339 | Joe Yang | 29 | M3 Race Car | 4 |
| 3 | 01:50.221 | Brett Smrz | 12 | E36 M3 | 11 |
| 4 | 01:51.012 | Elie Mansour | 41 | M3 | 23 |
| 5 | 01:52.219 | Juan Montoya | 14 | M4 | 4 |
| 6 | 01:55.019 | Martin Mania | 34 | GT4 | 16 |
| 7 | 01:55.559 | Michael Chen | 28 | zl1 1le | 8 |
| 8 | 01:56.021 | Robert Zhang | 39 | GT3 | 32 |
| 9 | 01:56.939 | Josh Shokri | 41 | GT3 | 22 |
| 10 | 01:57.305 | Daniel Rice | 25 | 488Pista | 22 |
| 11 | 01:57.504 | Sicheng Li | 16 | hurr. | 12 |
| 12 | 01:57.620 | Adam Hamilton | 24 | GT3 | 17 |
| 13 | 01:57.696 | David glosman | 18 | turbo s | 10 |
| 14 | 01:58.343 | kachun cheung | 31 | corvette | 31 |
| 15 | 01:59.189 | Bob Day | 25 | R8 | 2 |
| 16 | 02:00.746 | hao zheng | 21 | s2000 | 13 |
| 17 | 02:00.778 | Brooks Leal | 22 | M3 | 12 |
| 18 | 02:00.913 | Sam Russo | 13 | 98 c2s | 7 |
| 19 | 02:01.503 | Jason Woan | 16 | S2000 | 3 |
| 20 | 02:02.002 | Brian Lee | 48 | Bmw | 17 |
| 21 | 02:02.250 | Garrison Masters | 22 | c506 | 11 |
| 22 | 02:02.307 | Tony Liu | 24 | 911 Turbo | 18 |
| 23 | 02:02.615 | Thai Nguyen | 26 | Civic | 9 |
| 24 | 02:03.153 | Khoa Tran | 30 | Cayman S | 4 |
| 25 | 02:05.020 | Huan Vu | 22 | S2000 | 19 |
| 26 | 02:05.412 | Adam Hoffman | 56 | Camero | 55 |
| 27 | 02:05.702 | Flash Mandel | 48 | GT350R | 48 |
| 28 | 02:06.892 | Richard Yu | 17 | M4 | 14 |
| 29 | 02:10.084 | Don Poon | 23 | Mx-5 | 12 |
| 30 | 02:15.744 | CHIN HEI KONG | 28 | rsx | 8 |
| 31 | 02:17.028 | Allen Tran | 18 | Civic | 18 |
| 32 | 02:18.657 | Xiaoqiao Lin | 20 | TTS | 9 |