Twenty of the 24-car starters have been determined for Saturday's Knoxville Nationals A-Main. (Frank Smith Photo)
Twenty of the 24-car starters have been determined for Saturday's Knoxville Nationals A-Main. (Frank Smith Photo)

A Closer Look At The Knoxville Nationals Field

Tim Shaffer will start fourth fourth in Saturday's Knoxville Nationals feature. (Mark Funderburk Photo)
Tim Shaffer will start fourth fourth in Saturday’s Knoxville Nationals feature. (Paul Arch Photo)

Tim Shaffer

Pennsylvania driver Tim Shaffer won the 50th anniversary Knoxville Nationals in 2011. Shaffer has enjoyed a stellar season aboard the Rudzik Racing No. 49, winning with both the World of Outlaws and the All Star Circuit of Champions. Shaffer was fast on Thursday, coming from 21st to finish sixth. It will be his 16th Nationals feature.

Mobil 1 – the best choice for your Truck or SUV. Learn more about Mobil 1 Truck & SUV oil and enter for a chance to win a Toyota pickup or SUV at dirtgiveaway.com.