Date
Sat, 12 Jun 2027
Start
09:00
Venue
Portage Lake boat launch, Waterloo State Recreation Area, 11500 Seymour Rd, Grass Lake, MI 49240
Grass Lake, Jackson County
Countdown
June
A full 161 km on foot from one point to another, with 32 hours to get there. The climbing is gentle for the distance, so this one is about patience and staying on your feet.
Key facts
0132-hour cut-off for the full 161 km
02Point-to-point course, so plan your own way back to the start
0315 aid stations along the route
Create a free training plan for the Huron 100 161 km
7-day free trial, no card required
The course
The route
Grass Lake
Distance161km
Total climb2,499m
StartElevation
0 kmDrag map to rotate147.9 km
Weather
Mid-June, Grass Lake
25°CTypical high
13°CTypical low
5°CColdest in 20 years
38%Days with rain
Highs around 25°C and lows around 13°C, but it has dropped to 5°C. Rain on 38% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Erica Aikman21:11:357.6 km/h
02Johanna Ylanen21:54:317.3 km/h
03Hannah Depaul25:20:426.3 km/h
7
Women finishers
1d 2:42:35
Median time
6.0 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Huron 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 Huron 100 161 km plan targets
Typical sessions
161 km with 2,499 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 Huron 100 161 km plan.
7-day free trial, no card required.
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