The 13 50K ultramarathons in Iowa, with each one's climb, cutoff and date. Every race links to its own page, where you can see how it fits the runner you are now.
| Race | Distance | Where | Date | Climb | Cutoff |
|---|---|---|---|---|---|
| Doggone Tired Ultra | 50 KM | Vinton, IA | Sep 26, 2026 | — | — |
| Swiss Valley 50 km Trail Race | 50 KM | Peosta, IA | Oct 3, 2026 | 5,250 ft | 10.5 h |
| Yippee-Ki-Yay 50 km Race | 50 KM | Council Bluffs, IA | Oct 24, 2026 | 800 ft | 9 h |
| Miner 49er | 50 KM | Dubuque, IA | Nov 7, 2026 | 4,400 ft | 9 h |
| The Stuffed Turkey 30 Mile Endurance Race | 50 KM | Granger, IA | Nov 21, 2026 | 1,500 ft | 9.5 h |
| Triple D Winter Race | 50 KM | Dubuque, IA | Jan 16, 2027 | — | 9 h |
| Death by 5k Waterloo | 50 KM | Waterloo, IA | May 15, 2027 | — | 11.5 h |
| Crater Trail Run | 50 KM | Decorah, IA | Jun 5, 2027 | 5,500 ft | 9 h |
| Lake Macbride Trail Races | 50 KM | Solon, IA | Jul 24, 2027 | 2,400 ft | 9 h |
| Whiterock Ultra | 50 KM | Coon Rapids, IA | Jul 24, 2027 | 3,000 ft | 10 h |
| Trail of the Dragon 50K Run | 50 KM | Ida Grove, IA | Jul 31, 2027 | 3,000 ft | 15 h |
| ScoCo50 | 50 KM | Long Grove, IA | Aug 28, 2027 | 2,500 ft | 8 h |
| Booneville Backroads Ultra 50 km | 50 KM | Booneville, IA | Sep 4, 2027 | 1,498 ft | 8.5 h |