William Byron was fastest in Friday afternoon’s second and final NASCAR Xfinity Series practice session at Phoenix Raceway.
Byron covered the 1-mile oval at 131.661 mph, followed by fellow Xfinity playoff contender Justin Allgaier (131.085 mph).
Christopher Bell (130.961) was third, followed by Alex Bowman (130.914) and Erik Jones (130.881).
Other Xfinity playoff contenders and where they finished in practice were: Cole Custer (7th, 130.776 mph), Daniel Hemric (9th, 130.558), points leader Elliott Sadler (10th, 130.553), Brennan Poole (11th, 130.425), Matt Tifft (14th, 130.213) and Ryan Reed (21st, 129.464).