The 6 100K ultramarathons in Tennessee, 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 |
|---|---|---|---|---|---|
| Firewater | 100 KM | Greenback, TN | Oct 24, 2026 | 6,000 ft | 19.5 h |
| Mamba | 100 KM | Memphis, TN | Nov 6, 2026 | — | 21 h |
| Fall Creek 50 | 100 KM | Spencer, TN | Nov 21, 2026 | 6,200 ft | 18 h |
| The Pistol Ultra Run | 100 KM | Alcoa, TN | Mar 13, 2027 | — | 32 h |
| Viper 300 | 107 KM | Memphis, TN | Mar 19, 2027 | 2,000 ft | 31 h |
| Stillhouse 100K | 100 KM | Soddy Daisy, TN | Apr 17, 2027 | 12,000 ft | 19 h |