Iowa Corn 350 Powered by Ethanol

NASCAR Cup Series race at Iowa Speedway in Newton, Iowa, on the 0.875-mile paved oval. Title sponsor is Iowa Corn, the state corn growers' organization, with the "Powered by Ethanol" tag reflecting NASCAR's Sunoco Green E15 fuel. The 2026 running is Race 23 of the season, Sunday August 9. Ryan Blaney won the inaugural Cup race at the track in 2024.