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Next ProKart Challenge Event


PRE-ENTRY OPEN NOW!
Closes Tues, Aug 19 at 11:59 PM

Round 5 - SONOMA RACEWAY August 23-24, 2025
Sonoma Raceway Karting Center
29355 Arnold Dr,
Sonoma, CA 95476
sonomaraceway.com
Google Maps
There will be a Sunoco vendor pumping fuel.

SuperNationals 28


PRE-ENTRY OPEN NOW!!!

WAITLIST FAQ

Supernationals 28 November 12-16, 2025
Las Vegas Motor Speedway
7000 Las Vegas Blvd N
Las Vegas, NV 89115
Google Maps

PACKAGES & SHIPMENTS

Event Bulletin

  • 8/8 1:00 PM - CAPACITY UPDATE - X30 Junior and Pro Shifter are now open to 88. If you were previously waitlisted, please return to RaceSelect to complete the payment and confirm your entry.
  • 8/5 1:00 PM - SOLD OUT CLASSES - KA100 Senior, KA100 Master, Micro Swift, Mini Swift.
  • 8/1 1:20 PM - TEMP NUMBERS - If you have or can only pick a 1000 number in KA100 Senior, that is only a TEMPORARY number.  We will issue you a 900 number later on.
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 Important News

Superkarts! USA Confirms 2020 Event Dates for National Racing Calendar
Wednesday, 19 June 2019 09:48
Superkarts! USA today confirmed the first of their 2020 regional and national karting calendar dates, complete with some early confirmations on venues and geographic locations. The move comes on the heels of wanting to help teams and drivers make early plans for next year, and to promote cooperation between other racing organizations’ schedules.

“It’s no secret there are other places our customers can race,” remarked SKUSA’s president Tom Kutscher. “Our goal for 2020 was to confirm our dates as early as humanly possible so we could ensure as few scheduling or logistical conflicts as possible for our racers.”
Read more...
 
Drivers Double Dip and Set New Track Records at California ProKart Challenge Weekend in Fontana
Thursday, 13 June 2019 14:48

(Photo: DromoPhotos.com)

The California ProKart Challenge resumed the 2019 season with the first ever two-race weekend in series history. Rounds Two and Three were held at the CalSpeed Karting facility on June 8-9 following the opening event of 2019 in Buttonwillow in March. Approximately 150 competitors navigated the ‘Tecnico’ layout under challenging-hot weather conditions each day, totaling over 300 entries for the weekend. A number of drivers were able to double up in the win column on the weekend in their respective categories, closing out the first half of the 2019 championship chase for the California PKC. Racers also made history by setting new track records in all California PKC classes on their Evinco Tires, as well as winning incredible podium and raffle prizes.
Read more...
 
Fuel Testing at Pro Tour Springnats
Written by John Motley - National Tech Director   
Wednesday, 12 June 2019 11:03
As many of our competitors know, we took several fuel samples at the SKUSA Pro Tour SpringNationals event in Utah last month for further testing.

The following entrants’ fuels were tested:
  • Freddie Slater #727 X30 Junior
  • Ryan Norberg #N1 X30 Senior
  • Matt Johnson #517 X30 Master
In addition to SKUSA’s own analysis, we are happy to report that the three samples submitted to the VP Fuel’s head chemist were all determined not to have any additional ingredients beyond VP C12 and the allowed lubricants.
 
California ProKart Challenge Set to Host Double Header Weekend in Fontana
Friday, 31 May 2019 13:08

The California ProKart Challenge hosts Rounds Two and Three on June 7-9 at the CalSpeed Karting facility in Fontana, California (Photo: DromoPhotos.com)

The California ProKart Challenge is preparing for a return to the track after two months off following the 2019 opening event at Buttonwillow. The flagship regional program for Superkarts! USA returns to the site of the 2019 SKUSA Pro Tour WinterNationals with a unique and first ever dual-round weekend, as Rounds Two and Three will be contested on the June 7-9 weekend at the CalSpeed Karting facility. Competitors will compete in a similar format to the Pro Tour, with optional practice on Friday, and then two separate race days on Saturday and Sunday. The track layout will be different from the March weekend, with competitors set to battle around the ‘Tecnico’ circuit. The weather is forecasted to be perfect racing weather, and the turnout is expected to be the biggest of the season.

The 2019 California ProKart Challenge kicked off its season at Buttonwillow Raceway Park on March 30-31. A number of drivers swept the action for the opening round, including reigning SKUSA SuperNationals winner Billy Musgrave. The five-time California PKC champion went unchallenged in the Croc Promotion USA/Mad Old Nut Pro Shifter category. Add in Micah Hendricks in the Musgrave Racing Company Pro Shifter 2 division, John Crow in the Alpinestars G1 Gladiator class, Nick George in S4 Master Stock Moto, Brett Harrelson in Bell Helmets S4 Super Master Stock Moto, Stuart Hayner in AiM Sports X30 Super Master, and defending IAME USA West Micro Swift champion Graham Trammell. All seven will attempt to continue their streak in the P1 position through the double race weekend in Fontana.
Read more...
 
EKN Trackside: 2019 Superkarts! USA Pro Tour SpringNationals – Sunday Report
Monday, 06 May 2019 08:21

Ryan Norberg put himself into the championship chase with a second sweep in X30 Senior (Photo: EKN)

The second half of the Superkarts! USA Pro Tour is underway with the fourth round of the championship program contested on Sunday. The 10th edition of the SKUSA SpringNationals completed at the Utah Motorsports Campus in Erda, Utah, closing out the weekend with an exciting finish. Wind was a factor throughout the day and a threat of rain held off until the final checkered flag, with the heavy conditions passing south of the Salt Lake City area. A handful of drivers were able to repeat their victories on Saturday, solidifying their foothold in the title chase as the program looks toward the SummerNationals later this year.
Read more...
 


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