The National Tractor Pullers Association show that is coming to the Knoxville Raceway next Thursday is a part of the Seventh Annual Midsummer Shootout Series for Region Five. N-T-P-A Region Five Director Dale Quamme says there will be anywhere between 60-to-70 total vehicles participating from around the Midwest. The Titan Machinery N-T-P-A Pullin’ For the Fair Truck and Tractor Pull will be next Thursday at six inside the Knoxville Raceway.