Prosser's Steve Thompson earned the fast time for the Northwest Pro-4 Alliance stop at Stateline Speedway then went onto victory over Matt Melby, Eddie Secord, Ken Chandler and Lewiston's Kameron McKeehan.
Steve Kinser led the first three laps from the pole, before Joey Saldana charged around him on the high side of turn four on the fourth lap. Kinser retook the top spot on the 27th lap in heavy traffic and would lead the remaining 15…
Larry Dixon capped Saturday's qualifying runs for the U.S. Nationals on the NHRA Full Throttle Drag Racing Series with a track record 3.776-sec. pass at 324.36 mph.