Cole Davies was fast out of the blocks in St. Louis, using all of his race-craft to hold his own at the sharp end of the action before finally finishing the race in second. Davies was the first of the East Coast finishers, and the result extends his lead in the Championship standings.
He was joined on the podium by Nate Thrasher in third.
Daxton Bennick finished sixth and Nick Romano ninth; both Alpinestars riders.