San Jose, CA, United States · Saturday, February 6, 2027

Fixed Distance 50K

Mount Umunhum Trail Run

91 days away

50 km Distance

2,600 m Climbing

6.4 Grit · Hardcore

37.3394° N, 121.8950° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 52 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 10 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1087 races of the same distance. Cut-off calculator →

Field size ~16 Tiny. You will run alone for most of it.

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

Daytime high 14°C

Night low 4°C

Rainfall Showers likely

Daylight 10 h 29 m of light

Regional 2001-2025 average for February — NASA POWER, grid elevation 233 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a mountain course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 2,600 m of ascent.

Trail Running Shoes52 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles2,600 m of ascent to walk up.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

New Balance

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

Suunto

Vertical

Titanium GPS watch with solar charging, offline maps, and 140-hour GPS battery.

$630 ★★★★★ 4.5

All gear guides →

Course Notes

This race starts at the Hacienda Entrance of Almaden Quicksilver Park. The 30K, Trail Marathon and 50K all travel into the Sierra Azul Open Space Preserve. The 30K will summit Bald Mountain, and both the Trail Marathon and 50K will take you to the to

Similar races

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