Phoenix Raceway – also known as PIR – is a one-mile, low-banked tri-oval race track located in Avondale, Arizona.

The raceway was originally constructed with a 2.5 mi (4.0 km) road course that ran both inside and outside of the main tri-oval.

Kyle Larson was the first of the four drivers to clinch a spot in the Championship 4, winning the first race of the Round of 8 at Texas.

[8][9] Chase Elliott, Martin Truex Jr., and Denny Hamlin clinched the remaining three spots based on points.

Alex Hayden, Jeff Striegle and Rusty Wallace called the action from the broadcast booth when the field raced down the front straightaway.