The 2026 Stone Chevrolet Buick GMC Thunderbowl Raceway season opens with a double header weekend on March 27th and 28th!

Friday March 27: California 305 Sprint Cars, IMCA Mods and Hobby Stocks

Saturday March 28: NARC King of the West 410 Sprint Car Series, USCS Non-Winged Sprint Cars and California 305 Sprints