Final Practice For Auto Club 400

Auto Club Speedway

Fontana, California

Saturday, March 16 3:30 pm ET

50 minutes in length


Air Temp 75 degrees I Track Temp 97 degrees I Winds gusting to 25 mph and the weather is closest to race conditions for tomorrow except for the wind which will be non-existent for the race.

Penalized Drivers

Drivers facing 15-minute practice penalties:

Ross Chastain

Ryan Preece

Ryan Newman

B.J. McLeod

Joey Gase

Top-20 Speeds (Single-lap)

Best Lap Averages

Items of Note:

  • Chase Elliott had a lot of changes made to the car for final practice as they try and find more consistent speed in the 9-car
  • There is a bunch of cars out on the track earlier in the session as they try and find out what the cars are doing in dirty air since no one knows how the cars will react in this package
  • Brad Keselowski, Martin Truex Jr., Denny Hamlin, and Aric Almirola are in a nose-to-tail drafting pack for...