DateExpected
Mid June 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Martin High School, 1556 Chalmers Street, Martin, MI 49070
Martin, Allegan County
Countdown
June
Longjohn is 161 km of gravel with no support and no fixed start. You pick your own day in the window and ride it on your own, tracked live.
Key facts
01Unsupported: carry everything you need
02Start whenever you like inside the pre-race window (2026: May 1 to June 14)
03Live-tracked ride; rankings by sex and racing class
Create a free training plan for the Dirty Donut Race 161 km
7-day free trial, no card required
The course
The route
Martin
Distance161km
Total climb1,219m
StartElevation
0 kmDrag map to rotate164.2 km
Weather
Mid-June, Martin
25°CTypical high
14°CTypical low
6°CColdest in 20 years
41%Days with rain
Highs around 25°C and lows around 14°C, but it has dropped to 6°C. Rain on 41% 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 Dirty Donut Race 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 Dirty Donut Race 161 km plan targets
Typical sessions
161 km with 1,219 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
Group rides for drafting and bunch-riding skills
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 Dirty Donut Race 161 km plan.
7-day free trial, no card required.
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