Running in the top six but behind then-leader and Championship 4 foe Denny Hamlin on Sunday at Phoenix Raceway , Hendrick Motorsports teammate William Byron had a tire go flat and hit the wall, bringing out the caution with just three laps remaining.

Kyle Larson of Hendrick Motorsports won the 2025 NASCAR Cup Series Championship this afternoon on NBC and Peacock – his second career Cup Series title.

William Byron heads to Phoenix with momentum after a dominant win at Martinsville.