There will not be any discussion of principles package, modifications, horsepower or drafting in this week's STP 500 at Martinsville Speedway. The smallest track on the NASCAR program at just a half-mile creates tight racing and intimate competition simply due to its close quarters. Drivers need a certain skill set to be successful at the … המשך לקרוא NASCAR STP 500 at Martinsville 2019 Odds: 6 Bets to Back