SKUSA Pro Tour Event SKUSA Pro Tour SummerNationals August 9–11, 2019 Location New Castle Motorsports Park New Castle, IN United States 2019 Schedule SKUSA Pro Tour WinterNationals Mar 1 Fontana, CA SpringNationals May 3 Tooele, UT SummerNationals Aug 9 New Castle, IN Activity Supertune USA Verified Account Two Wins, Four Podiums and Two Pro Tour Championships for Supertune Burke wins X30 Junior on Sunday while Leonard and Sorensen go 1-2 in Mini Swift. Speed Concepts Racing Speed Concepts Racing continues winning streak at New Castle Motorsports Park with Kyffin Simpson Three more podiums in SKUSA competition. PSL Karting Verified Account Birel ART North America secures eight podiums, one championship at SKUSA Pro Tour Multiple strong runs at New Castle Motorsports Park. OTK Kart USA Twelve wins and eight championships for OTK at Superkarts! USA SummerNationals 33 podiums added to OTK's North American karting resume. SKUSA Pro Tour SKUSA confirms SummerNats track configuration The fabled New Castle Motorsports Park will once again play host to the series finale. Johnny Johnson Rumor: 2019 Pro Tour includes CalSpeed and Utah Motorsports Campus—Confirmed With ProKart Challenge and WinterNationals being one week apart, CalSpeed makes the most sense.