DARLINGTON, S.C. (AP) — The first half of NASCAR's regular season wrapped with a satisfying, drought-busting win by past champion Brad Keselowski at Darlington Raceway. Keselowski, in his third full season as a driver-owner at Roush Fenway Keselowski Racing, locked himself into the playoffs and marked himself as a title contender for the fall. There are several other usual suspects to watch including 2021 Cup Series winner Kyle Larson, his Hendrick Motorsports teammate William Byron and Joe Gibbs Racing leader Denny Hamlin, who is tied with Byron for the series lead with three victories this season.