NASCAR Cup Series, championship
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William Bryon outdueled Ryan Blaney on a late-race restart at Martinsville to take the checkered flag and advance to the NASCAR Championship 4.
NASCAR ran a full season points format through 2003. The sport moved to a playoff format for the first time in 2004. It was made up of the final 10 races of the season, with the top 10 drivers in the point standings at the end of the regular season.
William Byron won his way into the NASCAR Cup Series championship round with a Sunday victory at Martinsville.
The Mitchell, Indiana, native leads late in the NASCAR Cup season finale but can't secure the season championship.
Friday’s NASCAR Truck Series race at Martinsville Speedway, the Slim Jim 200, marked the final race in the Round of