During the 2009 off season, NASCAR announced few calendar changes, returning to Darlington Raceway for the first time in six years.
Kyle Busch Motorsports won the owners' championship in their inaugural season, while Todd Bodine won the drivers' championship during the Lucas Oil 150 at Phoenix International Raceway, one race before the final.
Notes: The season marked the return of Darlington Raceway to the schedule for the first time since 2004, replacing the Milwaukee Mile.
After the closing of Memphis Motorsports Park, a second race was added to Nashville Superspeedway on the first of two weekends where the Nationwide and Truck Series raced but the Cup Series had off weekends.
Italics – Pole position set by owner's points.