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.