Ultra Running Hub Moab, UT, United States · Saturday, January 30, 2027
Arches Ultra 50 km Race
What the course asks
DUV results for the 2026 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, January
Regional 2001-2020 average for January — NASA POWER, grid elevation 1819 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 239 | Caleb Olson · 03:34:22 | Genevieve Harrison · 04:54:13 |
| 2025 | 50km | 199 | Tyler Green · 03:39:45 | Anna Fisher · 04:23:48 |
| 2024 | 50km | 243 | Brian Whitfield · 03:31:02 | Anne Flower · 04:12:10 |
| 2023 | 50km | 187 | Anthony Costales · 03:41:09 | Madison Armonda · 04:34:34 |
| 2022 | 50km | 222 | Mike McMonagle · 03:53:26 | Devon Yanko · 04:13:43 |
| 2021 | 50km | 101 | Connor Cobb · 03:56:08 | Lizzy Gregory · 04:07:52 |
| 2020 | 50km | 207 | Hayden Hawks · 03:20:22 | Hannah Kligman · 04:18:11 |
| 2019 | 50km | 197 | Mike McMonagle · 03:55:45 | Leah Yingling · 04:24:57 |
| 2018 | 50km | 171 | Elijah Flenner · 04:16:26 | Wendy Stalnaker · 04:52:08 |
The field grew 20% between 2025 (199) and 2026 (239). 34% of the 2026 field were women.
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail with 900 m of ascent.
- 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.
Overview
The Arches Ultra 50 km Race, organised by Mad Moose Events, is a trail race held in Moab, UT, with its 9th edition scheduled for January 30, 2027. Runners face 900 meters of elevation gain over 50 kilometers, averaging 18 meters of climb per kilometer.
With 239 finishers in its 2026 edition, this race draws a larger field than 93% of the 2719 50k races in its peer group. The course travels along the border of Arches National Park, utilizing the Bar M, Klonzo, and Klondike Trail Systems.
Similar races
Other 50K trail ultras, closest in distance first.