Add Paul McMahan’s name to the entry list in the Knoxville World Challenge during the 49th Super Clean Knoxville Nationals. Knoxville Raceway Race Director Ralph Capitani says the 12 drivers from the United States that are eligible for the event have now entered. Also eight Australians, and two Canadians are have also entered. Cappy ads the 16 drivers that are inversion eligible are now entered. Those 16 will be gridded based on their qualifying night points and then inverted while those drivers outside the top 16 will start at the rear of the field straight up. The Knoxville World Challenge will run on Friday of the Knoxville Nationals and is a 20-lap $10,000 to win race