
The field for Friday's USAC AMSOIL National Sprint Car Series event prepares to go racing at Big Diamond Raceway. (Dan Demarco Photo)
Chase Stockon (5) battles Robert Ballou during Friday's Keystone Invasion event at Big Diamond Raceway. (Dan Demarco Photo)
Tanner Thorson leads Chris Windom Friday night during Pennsylvania’s Big Diamond Raceway’s USAC AMSOIL National Sprint Car Championship Keystone Invasion. (Dan Demarco Photo)
Kevin Thomas Jr. (9) races under Brady Bacon during Friday's Keystone Invasion event at Big Diamond Raceway. (Dan Demarco Photo)
Chase Stockon (5) battles Chris Windom during Friday's Keystone Invasion event at Big Diamond Raceway. (Dan Demarco Photo)
Tanner Thorson captured his first USAC AMSOIL National Sprint Car Championship victory Friday night at Pennsylvania’s Big Diamond Raceway. (Dan Demarco Photo)
Tanner Thorson celebrates his first USAC AMSOIL National Sprint Car Championship victory Friday night during round two of the Keystone Invasion at Big Diamond Raceway in Pottsville, Pa. (Dan Demarco Photo)
Tanner Thorson finally broke through to win his first USAC AMSOIL National Sprint Car Championship victory Friday night during round two of the Keystone Invasion at Big Diamond Raceway in Pottsville, Pa. (Dan Demarco Photo)