Date
Sat, 24 Apr 2027
Start
05:00
Venue
50 Mile and relay: Harbor Beach to Caseville County Park, Caseville, MI
Caseville, Huron County
Countdown
April
A flat 50 miles on road, point to point from Harbor Beach to Caseville, started at dawn by ruckers carrying weight. You finish somewhere different from where you began.
Key facts
01Early 05:00 start is only for ruckers
02Ruckers are not eligible for overall awards
03Aid stations open at their scheduled times, not when the ruckers arrive
Create a free training plan for the Thumb Coast Ultra & Relay 80 km
7-day free trial, no card required
The course
The route
Caseville
Distance80km
Total climb152m
StartElevation
0 kmDrag map to rotate80.2 km
Weather
Late-April, Caseville
9°CTypical high
3°CTypical low
-3°CColdest in 20 years
37%Days with rain
Highs around 9°C and lows around 3°C, but it has dropped to -3°C. Rain on 37% 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
Training
Training for the Thumb Coast Ultra & Relay 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 Thumb Coast Ultra & Relay 80 km plan targets
Typical sessions
80 km with 152 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
Steady mileage with one or two quality days a week
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 Thumb Coast Ultra & Relay 80 km plan.
7-day free trial, no card required.
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