William Byron goes back-to-back with another NASCAR Cup Series win at Phoenix Raceway in the United Rentals Work United 500.

The final race of the west coast swing took the NASCAR Cup Series to Phoenix Raceway for the United Rentals Work United 500. A tight one-mile course that features a dog leg to the left as the field enters the first turn. The Cup Series is debuting a short-track specific race package that severely limits the amount of downforce that these cars once had. The race at Phoenix was the first time deploying this package, and it threw drivers a curveball for sure.