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California ProKart Challenge

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!
Return to Buttonwillow for Third Stop of California ProKart Challenge
Friday, 03 April 2015 11:56

Large fields are scheduled for the third round of the California ProKart Challenge on April 10-11 (Photo:

It has been a quick and memorable start to the 2015 season for the California ProKart Challenge. The Superkarts! USA flagship regional program got off to a super strong start in February at Buttonwillow Raceway Park, then welcomed 150+ drivers yet again at the Willow Springs International Raceway in March. Now into the month of April, the series is set for a return to the Buttonwillow, California facility, competing on the 7/10-mile course in the backwards configuration including the challenging ‘kink’ on the near 1000ft. straightaway. By the looks of the current pit map, it will be another record turnout as racers continue their chase for over $75,000 in cash, gift certificates and prizes to be awarded this season.

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