Ultra Running Hub San Jose, CA, United States · Saturday, February 6, 2027
Mount Umunhum Trail Run
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, February
Regional 2001-2025 average for February — NASA POWER, grid elevation 233 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 16 | Benjamin Geiger · 04:40:36 | Melayna Smity · 08:47:43 |
| 2025 | 50km | 3 | Ben Lefevre · 04:14:18 | — |
| 2024 | 50km | 13 | Bryan Stevens · 05:14:31 | — |
| 2023 | 50km | 14 | Joshua Hanley · 05:44:00 | Cynthie Cuno · 06:41:00 |
| 2022 | 50km | 11 | Daniel Simonds · 05:10:59 | Shara Poppe · 07:01:49 |
| 2020 | 52km | 72 | Adam Wolf · 04:44:20 | Meghan Purdy · 05:11:09 |
| 2019 | 52km | 60 | Gregory Harper · 04:45:48 | Deanna Kwong · 06:28:33 |
| 2018 | 52km | 77 | Robert Ressl-Moyer · 04:25:11 | Nicole McManus · 05:36:28 |
The field grew 433% between 2025 (3) and 2026 (16). 6% 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.
Course notes
- terrain This is a mountain course. Poles are highly recommended for the sustained climbs.
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail with 2,600 m of ascent.
- Trail Running Shoes 52 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 2,600 m of ascent to walk up.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Overview
Set in San Jose, CA, the Mount Umunhum Trail Run packs 2600 meters of elevation gain into its 50-kilometer distance. A density of 52 meters of climb per kilometer makes it a relentlessly steep outing, taking runners from the Hacienda Entrance of Almaden Quicksilver Park up into the Sierra Azul Open Space Preserve.
The 10-hour time limit gives participants a 12-minute-per-kilometer cutoff pace, a margin that is more generous than 54% of 50k peers and tighter than 46%. It is an intimate race day where runners will rarely contend with crowds—the field is smaller than 73% of 50k events and bigger than 26%, with 16 finishers recorded in the 2026 edition.
Similar races
Other 50K trail ultras, closest in distance first.