Get up to speed with details for what to watch in Sunday's event at Sonoma Raceway, the 20th race of the Cup Series season.

Here are the NASCAR Xfinity Series results today from Sonoma Raceway, including the Xfinity Series stage results.

With just a handful of regular-season races remaining, the NASCAR Cup Series championship picture is starting to take shape. Kyle Larson, Chase Elliott, and Christopher Bell continue to draw betting ...