Martin Truex Jr. held his breath as the laps wound down at the Auto Club 400 on Sunday.
After all, late-race caution periods that bunch up the field have been commonplace at the Fontana race, and that was the last thing that Truex — who was cruising toward victory — needed to see out the window of his No. 78 Toyota.
He needn’t have worried as the race stayed green and Truex, the reigning champion in NASCAR’s top-level Monster Energy Cup Series, won by nearly 12 seconds over second-place Kyle Larson, who won the race last year.
It was Truex’s first Cup victory at the two-mile Auto Club Speedway, and he accomplished it in dominating fashion, winning from the pole...