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Next ProKart Challenge Event


Round 4/5 - K1 Circuit August 23-25, 2024
K1 Circuit
32240 Grand Ave
Winchester, CA 92596
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California ProKart Challenge

California ProKart Challenge Journeys North to Sonoma for Round Four
Friday, 29 May 2015 16:42

Simraceway Performance Karting Center will host Round Four of the California ProKart Challenge on June 5-6 (Photo:

Things are beginning to heat up all over the country, and so are the championship fights at the California ProKart Challenge. The season is at the halfway point as the Superkarts! USA regional program is set to host Round Four at the famed Simraceway Performance Karting Center in Sonoma, California on June 5-6. Napa Valley wine country is home to Sonoma Raceway, roughly an hour north of downtown San Francisco, and houses the 7/10-mile course that the California PKC competitors will battle on. The ‘National Reverse’ layout is set to provide a challenging stage for the 11 categories.
PKC Round 4 at Simraceway in Sonoma is now open for race entries!
Tuesday, 12 May 2015 09:37
Don’t miss this event, surely to be the largest of the year to date -- with most kids out of school for the summer and family vacation time in full swing! Register now at and see all event details here. Additional information will be posted as it becomes available. If you have questions, please email us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

See you in Sonoma!
Round 4 Sonoma Update
Friday, 08 May 2015 18:41
Event information and the SKUSA online store will be open shortly for the ProKart Challenge CA Round 4/Simraceway in Sonoma. Stand by!
Musgrave and Elliott Top Headline Categories at California ProKart Challenge
Wednesday, 15 April 2015 10:16

Two-time defending S1 Pro series champion Billy Musgrave jumped back on the winning track at Round Three (Photo:

The third stop of the California ProKart Challenge brought the teams, competitors and families to the Buttonwillow Raceway Park on April 10-11. It was a 180-degree flip in terms of weather conditions from the first weekend back in February, with the perfect weather for the record-breaking 160 drivers on hand competing in the Superkarts! USA regional event in Buttonwillow, California. The end of the event marked the halfway point of the championship chase, with six of the 11 class winners sweeping the action around the 7/10-mile course as drivers positioned themselves closer to their title hopes.
Pre-Entry Closes Tonight (Tuesday 4/7) at midnight for PKC Round 3 at Buttonwillow this weekend! Don’t miss the 3-Peat!
Tuesday, 07 April 2015 08:48
PKC California is going for a record – 150+racers for the 3rd straight month in a row! Hope you can help us get there! We are well on the way.

The ONLINE store is open until midnight tonight for the discounted pre-entry price of just $310 for entry and race tires.

The pits are packed! Click HERE to see the latest pit map and reserve a spot now.

Hope to see you in Buttonwillow!

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