Race entry for opening weekend at K1 Circuit to launch on December 17
The start to the 2026 Challenge of the Americas program is one step closer. The four-event championship program set to host its 19th season is opening number reservations to the public today.
Competitors from the 2025 season were provided a one week head start for the number reservation process for 2026. With the week concluded, the general karting public wishing to compete at Challenge of the Americas can now reserve their specific number for the price of $50 through the Challenge Race Select Page.
“We had good response from our VIP drivers securing their 2026 COTA identities,” stated Challenge of the Americas promoter Andy Seesemann. “The first VIP reserved their number within minutes of the PR going out, a promising sign of good things to come in our 2-cycle categories. Now that the number reservation process is open to all, we will see who will be committed to the 2026 Challenge in all eight classes. I expect the Briggs racers will show the same enthusiasm as we get things kicked off for our 19th season.”
Each category has a specific number range with the 2-cycle divisions remaining the same as in 2025, while the new Briggs & Stratton 206 divisions to the Challenge have their assigned range of numbers.
2026 Challenge of the Americas Classes (Number Range)
100cc Senior (900-999)
100cc Junior (800-899)
100cc Masters (700-799)
60cc Cadet (100-199)
Briggs Senior (300-399)
Briggs Junior (200-299)
Briggs Masters (400-499)
Briggs Cadet (00-99)
Class registration for the 2026 Challenge of the Americas is set to begin on Wednesday, December 17 through the Race Select website. Entry to the February 20-22 event at K1 Circuit in Winchester, California will be available.
Spec fuel and oil for the 2026 Challenge of the Americas program has been confirmed as well. Once again, Sunoco Supreme (112 octane) will be the official fuel and Motul Kart Gran Prix is the official oil. The spec fuel and oil must be purchased through the series for all 2-cycle classes. Fuel for the Briggs & Stratton 206 categories will utilize a local fuel station near the facility the Challenge is competing at, which will be announced prior to each weekend.
2026 Challenge of the Americas Schedule
February 20-22: K1 Circuit – Winchester, California
April 17-19: Phoenix Kart Racing Association – Glendale, Arizona
May 29-31, 2026: Colorado Karting Circuit at Centennial Airport – Centennial, Colorado
July 10-12, 2026: Sonoma Raceway – Sonoma, California