Pic 1: Dean Jacobs (6) and Mark Dobmeier battle during heat race action Friday at Knoxville Raceway, where the Knoxville Nationals take place Saturday.

Pic 2: Fans fill Knoxville Raceway Friday night, where the Knoxville Nationals take place Saturday.

Pic 3: Kerry Madsen (left) and crew chief Sonny Kratzer watch action Friday night at Knoxville Raceway, where the Knoxville Nationals take place Saturday.

Pic 4: Paul McMahan (20) and Donny Schatz battle during the Factory Value Parts World Challenge Friday at Knoxville Raceway, one of the events leading up to Saturday's Knoxville Nationals.

Pic 5: Jason Meyers will start fourth in Saturday's Knoxville Nationals.

Pic 6: Fans line the museum off turn 2 at Knoxville Raceway for Friday's action at Knoxville Nationals weekend.

Pic 7: Donny Schatz (15) and Jason Meyers battle during the A-scramble Friday Aug. 11 at Knoxville Raceway, a race that helped determine the lineup for Saturday's Knoxville Nationals.

Pic 8: Jason Solwold finished third in Friday's A-scramble for the Knoxville Nationals, and will start Saturday's main event in 8th.