Martin Truex Jr. scored his fourth Cup victory in eight races, holding off Joe Gibbs Racing teammate Kyle Busch over the closing laps Sunday at Sonoma Raceway.
Truex became the second driver to win consecutive Cup races at Sonoma, joining Jeff Gordon (who won three straight from 1998-2000).
It was the 23rd career victory for Truex, who has three wins at Sonoma. The 2017 series champion led three times for 59 laps, including the final 24.
In the season standings, Ryan Newman moved into the 16th spot in the standings with a seventh at Sonoma, clinging to the final provisional playoff spot with 10 races remaining in the regular season.