Date
Sat, 12 Jun 2027
Start
04:30
Venue
Almaden-Quicksilver County Park, Mockingbird Hill Entrance, 19535 Mockingbird Hill Lane, San Jose, CA 95120
San Jose, Santa Clara County
Countdown
June
Fifty miles out and back on the same early 04:30 start as the 100 km. A long day on trails, with plenty of time if you pace it sensibly.
Key facts
0120-hour limit: the clock runs from 04:30 to 00:30
02Lights are required in darkness
Create a free training plan for the Mt. Umunhum Ultras 80 km
7-day free trial, no card required
The course
The route
San Jose
Distance80km
StartElevation
0 kmDrag map to rotate67.2 km
Weather
Mid-June, San Jose
22°CTypical high
10°CTypical low
8°CColdest in 20 years
1%Days with rain
Highs around 22°C and lows around 10°C, but it has dropped to 8°C. Rain on 1% of days.
NASA POWER data, 2006-2025, the week either side of race day
2024 results
Who finishes, and how
#RiderTimeAvg speed
01Michelle Lomeli11:32:357.0 km/h
02Helen Kesting15:15:485.3 km/h
03Casey Nesbit15:24:205.2 km/h
3
Women finishers
15:15:48
Median time
5.3 km/h
Median speed
Women · 2024 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserTroy's California Trail Runs
Websitetctruns.com
Instagram@troyscaliforniatrailruns
Running since2018
Training
Training for the Mt. Umunhum Ultras 80 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Mt. Umunhum Ultras 80 km plan targets
Typical sessions
80 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Mt. Umunhum Ultras 80 km plan.
7-day free trial, no card required.
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