Who won the NASCAR Xfinity Series race at Sonoma? Connor Zilisch is the winner, plus full NASCAR Xfinity Series results at Sonoma Raceway.

Connor Zilisch and Shane van Gisbergen.It’s a blossoming rivalry that will likely play out on the road courses for many years to come in the NASCAR Cup Series, but now in back-to-back weeks, the NASCAR Xfinity Series has seen the Trackhouse development duo sparring for victories.