The 18th Running of the Lucas Oil Late Model Nationals starts tonight at the Knoxville Raceway. This will be the final event of the season at Knoxville. The format is similar to the sprint car Nationals in August where drivers will time trial, race in heats and mains to score points with a perfect score of 500. All drivers entered will run both tonight and Friday night to set up the races for championship night on Saturday. Hot Laps are scheduled to get underway at 6:45.