599: The total number of laps led by Kyle Busch in 16 races at Auto Club Speedway. Busch has led the most laps at Fontana in three straight races but didn’t translate his presence at the front of the field into a victory until he posted an opportunistic win in Sunday’s Auto Club 400, leading 125 laps in the process. Busch simultaneously delivered the first NASCAR Sprint Cup Series victory for Toyota and the first for Joe Gibbs Racing at the two-mile track. Busch’s 25th Cup win tied him with new teammate Matt Kenseth, Jim Paschal and Joe Weatherly for 24th on the all-time list.
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