Martin Truex Jr. took the competition to school Sunday, winning the Auto Club 400 after leading 125 of 200 laps from the pole.
His win over Kyle Larson and Kyle Busch is his 16th Cup victory and his first at Auto Club Speedway.
The top five was completed by Brad Keselowski and Joey Logano.
Kevin Harvick, who was trying to win his fourth consecutive race, was involved in an accident on Lap 39. He finished 35th, nine laps down.