Date
Sat, 12 Jun 2027
Start
08:00
Venue
Almaden-Quicksilver County Park, Mockingbird Hill Entrance, 19535 Mockingbird Hill Lane, San Jose, CA 95120
San Jose, Santa Clara County
Countdown
June
The shortest option at Mt. Umunhum: 30 km out and back, turning at the Woods parking lot aid station. An 08:00 start and a roomy 10 hours make it very approachable.
Key facts
01Turnaround at the Woods parking lot aid station, mile 9.1
0210-hour limit: the clock runs from 08:00 to 18:00
Create a free training plan for the Mt. Umunhum Ultras 30 km
7-day free trial, no card required
The course
One lap, on repeat
San Jose · one lap
Distance30km
Start · finishOne lap · elevation
0 kmDrag map to rotate29.9 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
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Bryan Stevens03:18:339.1 km/h
02Demy Kim04:30:416.6 km/h
03Samuel Craig04:30:426.6 km/h
6
Finishers
4:36:34
Median time
6.5 km/h
Median speed
Overall · 2025 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 30 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 30 km plan targets
Typical sessions
30 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 30 km plan.
7-day free trial, no card required.
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