DateExpected
Early May 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Hacienda Entrance, Almaden Quicksilver County Park, 21785 Almaden Road, San Jose, CA 95120
San Jose, Santa Clara County
Countdown
May
A 100 km trail run that starts in the dark at 4:30am and loops back to the Hacienda. The climbing is steady rather than savage, and you get 17 hours to finish.
Key facts
0117-hour time limit
02Headlamp required at the start
03Starts at 4:30am in the dark
Create a free training plan for the Quicksilver Endurance Runs 100 km
7-day free trial, no card required
The course
The route
San Jose
Distance100km
Total climb3,962m
StartElevation
0 kmDrag map to rotate82.4 km
Weather
Early-May, San Jose
20°CTypical high
9°CTypical low
5°CColdest in 20 years
8%Days with rain
Highs around 20°C and lows around 9°C, but it has dropped to 5°C. Rain on 8% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Quicksilver Endurance Runs 100 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 Quicksilver Endurance Runs 100 km plan targets
Typical sessions
100 km with 3,962 m of climbing
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
Hill reps and vert to prepare the climbs and descents
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 Quicksilver Endurance Runs 100 km plan.
7-day free trial, no card required.
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