Justin Allgaier has won the 2024 NASCAR Xfinity Series championship. Allgaier finished in second place in Saturday's NASCAR Xfinity Series Championship Race at Phoenix Raceway. Riley Herbst won the race in overtime after leading 116 of the 213 laps.

Justin Allgaier could barely contain his frustration following a big crash during the NASCAR Xfinity Series event. The crash, which happened because Brennan Poole's No. 44 vehicle leaked fluid onto the track, affected not only Allgaier's race, but also Aric Almirola, both of whom collided with the track wall.