How many nasscar tracks run two races during the season?
Sixteen NASCAR tracks hold at least two races during the season.
They are the Bristol Motor Speedway, Charlotte Motor Speedway,
Chicagoland Speedway, Daytona International Speedway, Dover
International Speedway, Iowa Speedway, Kansas Speedway, Kentucky
Speedway, Martinsville Speedway, Michigan International Speedway,
New Hampshire Motor Speedway, Phoenix International Raceway, Pocono
Raceway, Richmond International Raceway, Talladega Superspeedway
and Texas Motor Speedway.