LAS VEGAS — Cup teams are on track Saturday in preparation for their Round of 8 playoff race, while the Xfinity Series begins its Round of 8. Cup teams will practice and qualify Saturday ahead of the Xfinity Series playoff race.

The NASCAR Xfinity Series is running at Las Vegas Motor Speedway this weekend. Here is the playoff picture as the Round of 8 begins.

The NASCAR Cup and Xfinity Series travel west to the Las Vegas Motor Speedway for a key playoff race weekend, headlined by Sunday's South Point 400. Both series will run the first race of the Round of 8, with the last month of the season upon them. Three Round of 8 races plus the championship race weekend in Phoenix is all that remains.