NASCAR Cup Series winners at Iowa Speedway
| Date | Winner | Start | Make | Pole | Cautions | Laps | Avg. Speed | LC |
|---|
| 06-16-2024 | Ryan Blaney | 2 | Ford | 136.458 | 8 | 49 | 102.874 | 17 |
| 08-3-2025 | William Byron | 2 | Chevrolet | 136.933 | 12 | 72 | 92.905 | 10 |
| 08-9-2026 | Ty Gibbs | 6 | Toyota | 134.191 | 7 | 45 | 103.337 | 9 |