Brad Keselowski led only one lap -- the final one -- to win Sunday's Sprint Cup Series race in thrilling fashion at Auto Club Speedway.
The Auto Club 400 featured two green-white-checkered finish attempts. Kurt Busch, the pole sitter, led the way for the final restart with two laps to go, but after completing the penultimate lap, Keselowski moved to the inside of Busch and then passed him for the lead between turns 1 and 2.
Greg Biffle wrecked on the frontstretch during the last lap, but NASCAR did not display the caution flag, allowing the field to finish the race under green.
Busch attempted to reclaim the lead, but coming out of the final turn, he bounced off of the wall, which helped Kevin Harvick, his Stewart-Haas Racing teammate and defending Sprint Cup champion, grab the second position.
Keselowski beat Harvick to the finish line by 0.7 seconds for his first win of the season and the 17th of his Sprint Cup career. Busch ended up finishing third after leading a race-high 65 laps.
Keselowski became the fourth driver to virtually assure himself a spot in this year's Chase for the Sprint Cup championship. He joins his Team Penske teammate, Joey Logano, as well as Jimmie Johnson and Harvick.