His team could find nothing wrong, but Hamlin knew what he felt in the car and reacted accordingly. But on Lap 274, Hamlin made an extra pit stop, believing he had a loose wheel. Hamlin led a total of 177 laps and won the first two stages of the Southern 500. Last Sunday at Darlington Raceway, Denny Hamlin started the NASCAR Cup Series Playoffs with a flourish. Denny Hamlin Hopes to Convert Speed into a Playoff Victory