Ultra Running Hub Navajo Mountain, UT, United States · Saturday, October 31, 2026
Naatsisaan 50k Trail Ultra
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, October
Regional 2001-2020 average for October — NASA POWER, grid elevation 1702 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 12 | Randolph Curley · 05:18:54 | Treyann Sloan · 06:34:18 |
| 2024 | 50km | 12 | Stan Allison · 04:58:10 | Deshawna Joe · 07:40:55 |
| 2023 | 50km | 18 | Roger Stash · 05:04:08 | Aida Clifford · 06:45:31 |
| 2022 | 50km | 13 | Randolph Curley · 05:29:58 | Candace Gale · 07:48:44 |
| 2021 | 50km | 12 | Marshall Genn · 04:23:10 | Esther Arviso · 06:24:24 |
| 2019 | 50km | 38 | Randolph Curley · 05:07:16 | Amanda Rosenburg · 06:39:47 |
| 2018 | 50km | 25 | Jedediah Rogers · 04:29:41 | Marlo Johnson · 06:11:00 |
The field has held steady: 12 in 2024, 12 in 2025. 33% of the 2025 field were women.
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.