#18-Kyle Busch was fastest during opening practice at Auto Club Speedway with a speed of 177.327mph. #20_Erik Jones was second, followed by: #42-Kyle Larson, #1-Elliott Sadler, #2-Austin Dillon, #22-Ryan Blaney, #19-Daniel Suarez, #16-Ryan Reed, #3-Ty Dillon, and #7-Justin Allgaier. 38 drivers practiced during the session.
#7-Allgaier got into the wall during practice and will have to go to a backup car.
See complete results on the Auto Club practice 1 speeds page (pdf).(3-18-2016)
