SuperKartsUSA - Official Website of the SKUSA SuperNationals and ProKart Challenge racing series. The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world.

The SKUSA Pro Tour WinterNationals is making its first visit to the Speedsportz. The facility is the creation of karting Hall of Famer Alan Rudolph, with the main karting circuit at 8/10-mile long with 15 turns in the clockwise direction.

The 2025 Superkarts! USA ProKart Challenge is set to begin on February 28-March 2 at the new K1 Circuit. The Winchester, California facility opened its doors to SKUSA competition for the first time at the end of 2024, welcoming huge numbers over the two weekends of racing.

The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world. With attendance in excess of 400 competitors, the SKUSA SuperNats has become the largest single kart race in North America and probably the world.

SuperKartsUSA - Official Website of the SKUSA SuperNationals and ProKart Challenge racing series. The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world.

The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world. With attendance in excess of 400 competitors, the SKUSA SuperNats has become the largest single kart race in North America and probably the world.

A thrilling last lap in Pro Shifter provided Justin White (Maranello USA) the opportunity to celebrate a first career victory while former SKUSA Pro Tour and Winter Series champion Joe Turney (JHDD / Kart Republic) escaped the battling once again for a third straight main event win.

The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world. With attendance in excess of 400 competitors, the SKUSA SuperNats has become the largest single kart race in North America and probably the world.

The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world. With attendance in excess of 400 competitors, the SKUSA SuperNats has become the largest single kart race in North America and probably the world.

SuperKartsUSA - Official Website of the SKUSA SuperNationals and ProKart Challenge racing series. The Annual SKUSA SuperNats is held in Las Vegas and attended by kart racers from around the world.