The 2021 season for the California ProKart Challenge is set to close out next weekend (October 2-3) at the CalSpeed Karting facility. The Fontana, California circuit outside the Auto Club Speedway is hosting the sixth and final round of the championship chase. The program contested a double-round weekend here back in June, with this single-round event set to battle around the ‘Classico’ layout in the counter-clockwise direction. Action in Fontana will be the final step of the 2021 championship program, with drivers taking the best five of six rounds toward the final standings.