The second half of the 2026 ProKart Challenge began over the August 15-16 weekend at Sonoma Raceway. The Sonoma, California circuit welcomed the series for the second of back-to-back trips, hosting the fourth round of the season championship on the ‘Reverse National’ layout. Picture-perfect weather greeted the nearly 160 entries across 11 categories for the weekend.

The opening two rounds of the 2026 Superkarts! USA ProKart Challenge were held over the April 24-26 weekend at K1 Circuit. The Winchester, California facility welcomed the SKUSA regional program for rounds one and two of action to begin the six-round championship schedule. A total of 11 categories began the title chase for the 2026 season with five drivers able to leave the opening weekend with two wins toward their point total.

The 2026 season for the Superkarts! USA ProKart Challenge marks the 22nd edition of the organisation’s flagship regional program. The championship is coming off a strong 2025 season that featured increased numbers from the last several years, enjoying a schedule that featured three premier facilities. This year’s championship format features the same three circuits in a five-weekend, six-round, one-drop structure to welcome drivers from all across the western half of the United States.

The 21st season of the ProKart Challenge concluded this past October, completing the five events with six rounds of competition for the Superkarts! USA regional program. Eleven different class champions were crowned following the action at the K1 Circuit finale event.

The 2025 season concluded for the ProKart Challenge following the action on October 11-12 at the K1 Circuit. The Winchester, California, facility welcomed the Superkarts! USA regional program to close out its 21st season. A total of 161 entries battled around the 1.1-mile ‘Pro Track’ course for the sixth and final round of the 2025 championship.