Dirty Donut Race
🏔️ Imperial Century (100 mi)⏱️ Metric Century (62 mi)
📍 Martin High School • Martin, MI
100 Mi
Century Course
📅 Jun 20, 2026
Event Date
See Event Website
Registration
In-Person (Offline)
Event Format
🚴 Event Overview
The Dirty Donut is the first event of its kind to be held on dirt roads. This event has 6 different distances of 4, 16, 26, 42, 62, and 100 miles.
Course Amenities & Highlights:
GravelMetric Available100M
Regional Terrain & Profile: Great Lakes coastal dune corridors, rolling northern fruit orchards, and dense Upper Peninsula boreal forests
📍 Event Map & Location
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Martin High School
Martin High School Martin, MI
GPS: 42.548321, -85.610646
⚡ Event Specifications & Schedule
Verified logistical details, course specs, and event attributes for riders and participants.
| Dataset Population | 2026 Verified Census Part of the official 2026 empirical census baseline (405 events). Census Methodology → |
| Qualified Distances | 🏔️ Imperial Century (100 mi)⏱️ Metric Century (62 mi) |
| Event Type | Cycling Century |
| Sport | Road Cycling |
| Event Name | Dirty Donut Race |
| Event Status | Scheduled |
| Attendance | In-Person (Offline) |
| Start Date | 📅 Jun 20, 2026 |
| Starting Venue | Martin High School |
| Street Address | Martin High School |
| City / Locality | Martin |
| State / Region | MI |
| GPS Coordinates | 42.548321, -85.610646 |
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