Date
Sat, 1 May 2027
Start
06:00
Venue
Hunting Hollow parking lot/entrance, Henry Coe State Park, near Gilroy, California
California
Countdown
May
One giant loop of 161 km with 6,096 m of climbing and nobody out there to help you. The full 100 miles is a proper test of fitness and self-reliance.
Key facts
01Self-supported: no checkpoints and no support on the course
02Follow Henry Coe State Park regulations and the published travel rules
03Carry everything you need for the whole loop
Create a free training plan for the Hard COEre 100 161 km
7-day free trial, no card required
The course
The route
California
Distance161km
Total climb6,096m
StartElevation
0 kmDrag map to rotate129.3 km
Weather
Early-May, California
17°CTypical high
4°CTypical low
-5°CColdest in 20 years
12%Days with rain
Highs around 17°C and lows around 4°C, but it has dropped to -5°C. Rain on 12% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserHard COEre 100 organizers (Dirk/ElHombre, Patrick/Ratpick, and Roy/Plymmer)
Websitehardcoere100.org
Running since2010
Training
Training for the Hard COEre 100 161 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 Hard COEre 100 161 km plan targets
Typical sessions
161 km with 6,096 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Terrain and skills practice specific to the course
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 Hard COEre 100 161 km plan.
7-day free trial, no card required.
Other races at Hard COEre 100
More events in May in United States
12 Hours of Port JervisExpected Early May 2027 · City of Port Jervis→3/4 Minus CykelturExpected Early May 2027 · Sandpoint→Bear Mountain Trail ChallengeExpected Early May 2027 · Town of Highlands→Belgian Waffle Roadie-OhSat, 1 May 2027 · San Marcos→Black Fork Gravel GrinderSat, 1 May 2027 · Glenmont→COWabunga! GravelExpected Early May 2027 · Viola→
