Challenge of the Americas!

The premier winter karting series on the left coast.

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  • Home
  • COTA Schedule & Tracks
    • January 22-24, 2021: PKRA – Phoenix, AZ
      • Rounds 1/2: Jan. 22-24, PKRA Event Information
    • February 26-28, 2021: CalSpeed – Fontana, CA
      • Rounds 3/4: CalSpeed Event Information
        • Online Registration Open
    • March 26-28, 2021: Sonoma Raceway – Sonoma,CA
      • Rounds 5/6: March 26-28, Sonoma Event Information
  • Registration
  • Rules
    • 2021 Classes
    • Event Format
    • 2021 Fuel and Oil
    • 2021 Tires
    • Pre-Tech and Declaration Procedures
    • 2017 ROK Rules
    • CRC Supplemental Rules
    • Points Structure
  • Media
    • Digital Magazine
    • Happy Hour With Howden 11/24/2020
  • Results
    • Results CoTa
    • Results CRC
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  • California ROK Championship 2021 Schedule
    • May 7-8: Buttonwillow Raceway Park
    • June 12-13: Sonoma Raceway
    • July 23-25: Pat’s Acres Racing Complex
    • August 21-22: Sonoma Raceway
    • September 25-26: Buttonwillow

Rotax Supplemental Rules and Regulations

WE SHARE THESE RULES IN COMMON WITH THE USRMC.  THESE RULES APPLY TO THE ROTAX CHALLENGE OF THE AMERICAS.

2013 USRMC Supplemental Sporting Regulations
(updated 6/22/12)
2013 USRMC Age Structure 

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