Kyle Larson led 133 laps, but needed a good late-race pit stop to get the lead back from Christopher Bell, before outracing Bell to the finish line, by a mere 0.082-second margin, to get the win in Las Vegas on Sunday.
The win puts Larson in the Championship 4 in Phoenix on Nov. 5.
Who else will be joining Larson?
Rod Mullins helps us break it all down.