The 6 100K ultramarathons in Oklahoma, 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 |
|---|---|---|---|---|---|
| Love Never Ends Trail Run | 100 KM | Atoka, OK | Oct 17, 2026 | 2,800 ft | 20 h |
| Pumpkin Holler Hunnerd | 100 KM | Tahlequah, OK | Oct 17, 2026 | 3,537 ft | 31 h |
| Lake Murray Endurance Run | 100 KM | Ardmore, OK | Oct 24, 2026 | 4,800 ft | 30 h |
| Thunderbird Trail Run | 100 KM | Norman, OK | Nov 7, 2026 | — | 19 h |
| Lake Vian Hilltop Run | 100 KM | Vian, OK | Feb 27, 2027 | 4,650 ft | 27.5 h |
| Lake McMurtry Run | 100 KM | Stillwater, OK | Apr 10, 2027 | — | 19 h |