Iowa Speedway

0.875-mile short track in Newton, Iowa. Designed at the initiative of NASCAR Hall of Famer Rusty Wallace. Hosts the Cup Series Iowa Corn 350 Powered by Ethanol and the NASCAR O'Reilly Auto Parts Series Hy-Vee Perks 250. The Cup Series has raced here twice as of August 2026 (Ryan Blaney 2024, William Byron 2025); the O'Reilly Series races here for the 23rd time in 2026, having returned in 2024 after a four-year absence. The track was repaved before the 2024 race. Facts from the NASCAR Wire Service weekend preview of 2026-08-06 by Reid Spencer.