Regan Smith is a NASCAR Sprint Cup winner.
Driving for a single-car, self-sponsored team based out of Denver, CO., the native of Cato, NY. beat Roush-Fenway Racing driver Carl Edwards to win the Showtime Southern 500 at Darlington Raceway for his first career victory in one of the great upsets in the sport's history.
Brad Keselowski grabbed his first top-five since he won the 2009 spring race at the Talladega Superspeedway with a third-place finish, while front row starters Kasey Kahne - who led a race-high 124 laps - and Ryan Newman rounded out the top-five.
The race's final laps were marred by an incident between Kevin Harvick and Kyle Busch. Busch and Harvick had made contact earlier in the lap, sending Harvick's teammate hard into the inside wall. Several yards down the track, Busch hung a left into Harvick's left rear, hooking him into the outside wall. Harvick parked his car in front of Busch's on pit road after the race and got out of his car to confront Busch, who peeled away and pushed Harvick's Chevrolet into the inside pit wall.