Christopher Bell won the Xfinity Series race at Darlington Raceway after a thrilling overtime finish, holding off Cole Custer and Sheldon Creed, who was poised for his first series win but was setback by a late-race caution and pit stop issues. Bubba Wallace secured the pole position for the Southern 500, giving a significant boost to his playoff hopes as he aims to secure a spot in the postseason. Tyler Reddick leads the standings for the regular-season championship, with Kyle Larson and Chase Elliott close behind. The Southern 500 is crucial as it is the final race of the regular season, with several drivers, including Wallace and Martin Truex Jr., fighting for the remaining playoff spots.