The Nascar Xfinity Series Race At Bristol Motor Speedway Has Been Moved From Saturday To Monday Night. The Decision To Move The Cheddar’s 300 Comes After Wednesday’s Cup Race At Charlotte Got Rained Out And Moved Till Tonight At Seven O’clock. Nascar Cited Travel And Setup Challenges As The Reason For The Bristol Move. Sunday’s Food City Presents The Supermarket Heros 500 Race Is Set For Sunday At 3:30.