| Race details[1][2][3][4][5][6][7][8][9][10] | |||
|---|---|---|---|
| Race 5 of 36 in the 2018 Monster Energy NASCAR Cup Series | |||
 2018 Auto Club 400 program cover | |||
| Date | March 18, 2018 | ||
| Location | Auto Club Speedway in Fontana, California | ||
| Course |
Permanent racing facility 2 mi (3.22 km) | ||
| Distance | 200 laps, 400 mi (640 km) | ||
| Average speed | 147.526 miles per hour (237.420 km/h) | ||
| Pole position | |||
| Driver | Furniture Row Racing | ||
| Time | 38.592 | ||
| Most laps led | |||
| Driver | Martin Truex Jr. | Furniture Row Racing | |
| Laps | 125 | ||
| Winner | |||
| No. 78 | Martin Truex Jr. | Furniture Row Racing | |
| Television in the United States | |||
| Network | Fox | ||
| Announcers | Mike Joy, Jeff Gordon and Darrell Waltrip | ||
| Nielsen Ratings | 2.4 (Overnight)[11] | ||
| Radio in the United States | |||
| Radio | MRN | ||
| Booth Announcers | Joe Moore, Jeff Striegle and Rusty Wallace | ||
| Turn Announcers | Dan Hubbard (1 & 2) and Kurt Becker (3 & 4) | ||
The 2018 Auto Club 400 was a Monster Energy NASCAR Cup Series race that was held on March 18, 2018, at Auto Club Speedway in Fontana, California. Contested over 200 laps on the two-mile (3.2 km) D-shaped oval, it was the fifth race of the 2018 Monster Energy NASCAR Cup Series season.
- ^ "2018 schedule". Jayski.com. Jayski's Silly Season Site. May 5, 2017. Archived from the original on December 24, 2017. Retrieved February 12, 2018.
- ^ "Auto Club Speedway". NASCAR.com. NASCAR Media Group, LLC. January 3, 2013. Retrieved February 12, 2018.
- ^ "Entry List". MRN.com. Motor Racing Network. March 12, 2018. Retrieved March 12, 2018.
- ^ "First Practice Results". MRN.com. Motor Racing Network. March 16, 2018. Retrieved March 16, 2018.
- ^ "Qualifying Results". MRN.com. Motor Racing Network. March 16, 2018. Retrieved March 16, 2018.
- ^ "Second Practice Results". MRN.com. Motor Racing Network. March 17, 2018. Retrieved March 17, 2018.
- ^ "Final Practice Results". MRN.com. Motor Racing Network. March 17, 2018. Retrieved March 17, 2018.
- ^ "Auto Club 400 Results". MRN.com. Motor Racing Network. March 18, 2018. Retrieved March 18, 2018.
- ^ "Points standings" (PDF). Jayski.com. Jayski's Silly Season Site. March 19, 2018. Archived from the original (PDF) on March 20, 2018. Retrieved March 19, 2018.
- ^ "Manufacturer standings" (PDF). Jayski.com. Jayski's Silly Season Site. March 19, 2018. Archived from the original (PDF) on March 20, 2018. Retrieved March 19, 2018.
- ^ "Auto Club Speedway final TV ratings". Jayski's Silly Season Site. ESPN. Retrieved 7 May 2018.