William Byron put on a dominating performance when he needed it most. The Hendrick Motorsports driver beat Ryan Blaney in an 11-lap dash and won the Xfinity 500 at Martinsville Speedway, putting him in the field with teammate Kyle Larson for next weekend's championship race after Sunday's NASCAR Cup Series Round of 8 finale in Martinsville, Va. With Blaney leading and the pair charging to the historic short track's first turn, Byron's No. 24 Chevrolet clipped Blaney's No. 12 Ford with 43 laps left to send it up the track and give him track position. Byron later won a race off pit road following the 10th caution with 18 laps to go and drove away from Blaney by 0.717 seconds for his third win this season and third at Martinsville. More importantly, the 27-year-old Byron, who started outside

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