California ROK Championship Home News Schedule California ROK Championship Schedule 2021 2021 Season 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 Round 1 Buttonwillow Raceway Park Buttonwillow, CA May 7 - 8 Round 2 Simraceway Performance Karting Center Sonoma, CA Jun 12 - 13 Round 3 & 4 Pat's Acres Racing Complex Canby, OR Jul 23 - 25 Round 5 Simraceway Performance Karting Center Sonoma, CA Aug 21 - 22 Round 6 Sep 25 - 26 Advertisement