FONTANA, Calif. - In a race that saw tire problems turn the contest upside-down, Kyle Busch won Sunday’s Auto Club 400 in a green-white-checkered-flag finish that took the fifth NASCAR Sprint Cup Series event of the year six laps past its scheduled distance.
The first driver on four fresh tires for a restart on Lap 205 at Auto Club Speedway, Busch passed Stewart-Haas Racing teammates Kurt Busch and Tony Stewart on the next-to-last lap, bringing rookie Kyle Larson with him.
Able to keep Larson behind him on the final lap, Busch crossed the finish line .214 seconds ahead of the 21-year-old, who had won the NASCAR Nationwide Series race at the twomile track one day earlier.
The victory was Busch’s second straight and third overall at Fontana, his first of the season and the 29th of his career. Kurt Busch, who like Stewart took right-side tires only on the final pit stop on Lap 200, ran third, followed by polesitter Matt Kenseth and Stewart.