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 2026 winter season is set to heat up the international karting scene: two of the most iconic competitions on the American circuit are ready to deliver excitement, adrenaline, and history.

The 21st edition of the Superkarts! USA ProKart Challenge is projected to be one of the best seasons in the last decade. The organization’s flagship regional program is set to contest six rounds of racing over the course of five weekends, featuring three premier facilities in the southwest region of the United States.

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.

Rock Island - Lots of exciting changes are in store for competitors at this year's Xtream Rock Island Grand Prix Presented by The Hemp Doctor, the world's largest and most prestigious karting street race. That's especially true for drivers winning a number of classes this Labor Day weekend, August 31-Sept 1.