Race highlights and interviews with the top four finishers--Ricky Thornton Jr., Ryan Gustin, Rodney Sanders and Johnny Scott--following night 1 of 3 at the 5th Annual Production Jars Sooner Showdown at the Southern Oklahoma Speedway in Ardmore, Okla., for Round 13 of Summit Racing USMTS Winter Speedweeks on Thursday, March 9, 2017.