The instant the Atlanta Braves and Cincinnati Braves cleared the baseball diamond inside the infield at Bristol Motor Speedway, a new clock started.

Bristol Motor Speedway has to switch from hosting the MLB Speedway Classic and be ready for NASCAR's return to the historic racetrack for a playoff race Sept. 13.

BRISTOL, TN — This town of 28,000 year-round residents is typically a little on the sleepy side. When NASCAR comes to Bristol Motor Speedway two weekends a year, the place explodes with visitors from every corner of the country.