Dirty Donut
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2025 - Dirty Donut

Martin, Michigan, United States View on map
Jun 14, 2025 – Jun 21, 2025 (America/Detroit local time)
Cycling

2025 distances

Cycling

10 Mile-Donut Divisions

Jun 14, 2025 16.1K 8:00 AM
Free
Closed

22 Mile-DONUT DIVISIONS

Jun 14, 2025 35.4K 8:00 AM
Free
Closed

22 Mile-SPRINT DIVISIONS

Jun 14, 2025 35.4K 8:00 AM
Free
Closed

42 Mile-DONUT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT COED TANDEM

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT COED SINGLE SPEED

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-SPRINT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-SPRINT COED FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-DONUT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62Mile-DONUT COED FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-DONUT COED TANDEM

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-SPRINT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-SPRINT COED FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

10 Mile-DONUT DIVISIONS

Jun 14, 2025 16.1K 8:00 AM
Free
Closed

22 Mile-DONUT DIVISIONS

Jun 14, 2025 35.4K 8:00 AM
Free
Closed

22 Mile-SPRINT DIVISIONS

Jun 14, 2025 35.4K 8:00 AM
Free
Closed

42 Mile-DONUT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT COED TANDEM

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-DONUT COED SINGLE SPEED

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-SPRINT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

42 Mile-SPRINT COED FAT TIRE

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-DONUT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

62 Mile-SPRINT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

100 Mile-SPRINT DIVISIONS

Jun 14, 2025 Ultra 8:00 AM
Free
Closed

Race-day weather

Conditions on June 14, 2025 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 17.0° / Maximum temperature (recorded on race day) 28.4°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 17.0° / Maximum feels like — heat index / wind chill (recorded on race day) 31.5°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
17.7
Precip (mm)
Precipitation over the day (recorded on race day)
3.7mm
Humidity
Mean relative humidity (recorded on race day)
70.4%
Sunrise
Sunrise at the start line on June 14, 2025 (EDT)
Sunset
Sunset at the start line on June 14, 2025 (EDT)
Daylight
Hours between sunrise and sunset on race day
15h 17m

The sun rises at 6:04 AM and sets at 9:21 PM local time (EDT) in Martin on June 14, 2025 — 15h 17m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

Reviews

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2025 results — Dirty Donut

763 finishers across 12 distances · leading places in the 10 Mile-DONUT DIVISIONS

View all results
Leading finishers of the 2025 Dirty Donut
Place Name Time Pace
1 L. Douglass 2:58 0:18 /mi
2 John Bechinski 7:19 0:44 /mi
3 Ryan Lindsey 9:09 0:55 /mi
4 Nathan Jazwinski 12:04 1:12 /mi
5 Jeff Radawski 14:15 1:26 /mi

Every finisher is on the results page, filterable by distance, gender and age group.

Other races near Martin

Different organizers, within 40 miles, in the next three months

Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 1 Martin event

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