Elliott started 34th after failing to post a qualifying time, but methodically worked his way into the lead, passing Matt DiBenedetto on Lap 38, and then overtaking Kyle Busch with 17 to go.
Kyle Larson started on the pole at Sonoma and held off Hendrick teammate Chase Elliott on an overtime restart to secure the win in the Toyota/SaveMart 350.
Martin Truex Jr. swept Stages 1 and 2 at Darlington and held off Kyle Larson in the closing laps of the final stage to take the win, his third of the year.
Harvick swept the weekend, holding off Brad Keselowski on Saturday and outpointing Denny Hamlin on Sunday. Harvick now has six wins this season and is the points leader by 140.