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Mt. Umunhum Trail Conquest-Fall — 2025Trail race course31.0mi6,512ftOct 11

Mt. Umunhum Trail Conquest-Fall — 2025

Race day · Oct 11, 2025 · by Troy's California Trail Runs

Race almanac: 1 year of race-day weather
Plan this race
Course map, elevation profile & surface
Distance
31.0mi
Elev gain
6,512ft
Elev loss
6,509ft
High point
3,373ft
Low point
476ft
Drawing the course…

Race-day light

In the dark
0%
Sunrise
7:12am
Sunset
6:37pm
Headlamp from
Not needed

For a 6:55 finish (an estimate) · starting 7:00 AM Oct 11. Dark means the sun below civil twilight.

Climbs

4 climbs · 4,301 ft totalbiggest first
Pick a climb to find it on the profile and the map.

Elevation gain, measured two ways

SourceGainvs lidar
Course file (GPX)6,512ft+16%
USGS lidar, 1 m5,635ftreference

They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 31, 2026. The planner still uses the course file.

Conditions typical race-day weather for Oct 11 at the start
Typical high
77°F
Typical low
53°F
Chance of rain
7%
2025 high
69°F

Typical = the median of 2016–2025 for Oct 11 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.

Race almanac 1 year of this race

Past editions

On race day it reached 69°F at the start, with a low of 54°.

YearStart °FHigh point °FRainWind
2025 Oct 1169°/54°59°/44°dry10mph

race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (3,373 ft).

Reviews what runners who have been there say

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About this course

Mt. Umunhum Trail Conquest-Fall — 2025 covers 31.0 mi (49.8 km) with 6,512 ft of elevation gain. That is about 210 ft per mile of climbing, and 6,509 ft of descent. The course tops out at 3,373 ft and bottoms out at 476 ft. The profile has 4 sustained climbs; the biggest is the climb from mi 7.4, +1,214 ft over 4.2 mi at 5.5% on average (steepest stretch 18%). Race day is October 11, 2025, starting at 7:00 AM; the sun rises at 7:12 AM and sets at 6:37 PM. Typical race-day weather at the start: a high of 77°F and a low of 53°F, with a 7% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.

Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.

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Course history

  1. Oct 29, 2026Added to the catalog
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