NORTH WILKESBORO, N.C. - Brad Keselowski checked the second box on Saturday. Having won the pole for Sunday's NASCAR All-Star Race, Keselowski backed up his victory in Friday's time trials with a win in Saturday's first All-Star heat race at North Wilkesboro Speedway.

Keselowski was already assured the No. 1 starting spot by posting the fastest time in qualifying Friday.Keselowski led 74 of 75 laps to win his heat race. Ross Chastain finished second, William Byron was third,

After Brad Keselowski earned pole position in qualifying on Friday, the rest of the grid was determined by a pair of heat races on Saturday. To put it simply, Heat #1 results decide the inside row for the All-Star Race while Heat #2 results decide the outside row with ten drivers in each heat.