SuperNats 29

173DAYS

2027 Winter Series

238DAYS

2026 Pro Tour

21DAYS

SKUSA Mexico

7DAYS

2026 PKC

1DAY

2026 TSRS

28DAYS

Next ProKart Challenge Event


PRE-ENTRY OPEN UNTIL MAY 20
You can still register online but
$25 Late/Walk-up fee applies.

PKC Round 3 - SONOMA RACEWAY May 23-24, 2026
Sonoma Raceway Karting Center
29355 Arnold Dr,
Sonoma, CA 95476
sonomaraceway.com
Google Maps
There will be a Sunoco vendor pumping fuel.

California ProKart Challenge

2026 Pricing Overview

Pre-Entry Fees

The definition of a “PRE-ENTRY” is an entry received, with payment, at the ProKart Challenge office before midnight on the cut-off date (see event info above) and will qualify for the pre-entry pricing. Entries after this 'cut-off' will bec considered late and subject to late/walk-up entry pricing.

  • $437 - Pre-Entry + Blue Evinco SK-H2 Race Tires
  • $449 - Pre-Entry + Red Evico SK-M2 Race Tires
  • $175 - Pre-Entry Only
  • $200 - Late/Walk-Up Entry

Evinco Spec Tires

Race tires and pre-ordered practice tires are delivered to each event for free.  All tires are event delivery only.
  • $274 +tax per set Evinco SK-M2 ‘Red’ practice or race tires for Pro and Master Shifter. 
  • $262 +tax per set Evinco- SK-H2  ‘Blue’ practice or race for Mini/Micro Swift, KA100 and FZ Shifter classes.
Note: Although unused Race Tires can be used at another PKC event, Race Tires MUST have the special PKC stamp to pass tech and be 'sticker tires' for all competition sessions from qualifying to the end of the race day.

MG-WT Rain Tire

  • $276 +tax per set MG-SW2 practice or race tires for Micro/Mini Swift and Mini Shifter. 
  • $284 +tax per set MG-SW2 practice or race for KA100 and Shifter Classes.

Extras

  • $150 Practice Day.
  • $25 Transponder Rental ( If you don't have your own )
  • SKUSA Annual Membership - $150 for new members, $100/$125 Standard/Late Renewal (during renewal periods)
  • Reserved Pit Space - See Pit Space Reservations Page for each event.
  • Overnight Camping - See Pit Space Reservations Page for each event.
  • SKUSA’s Spec Fuel (Sunoco 112) and Spec Oil (Elf HTX909) are mandatory at these events.

Spectator Passes

Spectator passes are required for all guests, including mechanics at the track at these prices; 5 years old and under are No Charge (but must be signed in by a parent or legal guardian and receive wristband on site).
  • $20 for 1-day
  • $35 for 2-day 
  • $45 for 3-day (double header events)

NOTES:
  • If you have your own transponder, please provide us the number WITH your race entry. The replacement cost if a SKUSA rental transponder is lost or damaged is $500.
  • Manual Race Entry at Track is subject to availability in your desired class and/or last-minute cancellations.
  • Pre-entries must be submitted thru RaceSelect with a credit card prior to the posted cut off date (or prior to the class reaching its ‘cap’ and being SOLD OUT). If you are having trouble with RaceSelect, you must send an email to This e-mail address is being protected from spambots. You need JavaScript enabled to view it , so that issues may be handled in order -- based on the time/date that the email is received.