SuperNats XXVIII

96DAYS

2026 Winter Series

154DAYS

2026 Pro Tour

232DAYS

SKUSA Mexico

28DAYS

2025 PKC

15DAYS

2025 TSRS

42DAYS

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.

California ProKart Challenge
Last Call for PKC Round 3 CalSpeed pre-entries! Deadline is Tonight!
Monday, 29 May 2017 12:58
Happy Memorial Day and Thank You to all of those who have served our country!
Racers, don’t miss tonight’s cutoff for ProKart Challenge Round 3 at CalSpeed this weekend! We will still take walkup entries at the track starting on Thursday afternoon at 3pm, but it will cost you a little more time and money! Why not do it now?
Click HERE for all EVENT DETAILS, and HERE to register on MotorsportReg!