Chastain started deepest in the field (25th) among the four title contenders on Sunday at Phoenix Raceway but had made his way into the top-10 by the start of Stage 2.
By the end of the race, his No. 1 Trackhouse Racing Chevrolet was the fastest car on the track and was closing on leader Joey Logano in the final laps. Chastain ended up finishing third in the race, 1.2 seconds behind Logano.
