The sixth and final round of the Superkarts! USA California ProKart Challenge was held over the September 28-29 weekend, returning to the K1 Circuit. The Winchester, California facility sparked up the entry total once again, surpassing the 150-mark for 11 classes in competition. Perfect weather greeted the teams and drivers completing the 20th season for the championship program.

The opening weekend for the 2023 California ProKart Challenge took place over March 11-12 at the Buttonwillow Raceway Park. Nearly 100 competitors participated on the weekend at the California facility with two full days of action for the first event of the six-round championship program. The 7/10-mile circuit in the counter-clockwise direction welcomed nine drivers earning their first victories on the season at the Superkarts! USA regional program.

The 2021 season for the California ProKart Challenge came to a close over the October 2-3 weekend with the sixth and final round of the year held at the CalSpeed Karting facility. It was the second visit to the Fontana, California facility in 2021, previously hosting the double-header weekend in June. For the series finale, the near 100 Superkarts! USA regional entries took to the ‘Classico’ layout to decide this year’s series champions.