The Knoxville Nationals one/third marathon is this Saturday. The eight-point-seven mile race is scheduled to start at eight A-M from Auld Park in Knoxville and will wind around the city. Race Director Joe Cunningham says the route will start at Auld Park and take runners around the “loop” of Knoxville. Cunningham adds each year several of the participants tell him they did not know how many sights the city had. The KNIA/KRLS Big Red Radio will be on hand playing music and making announcements.