Mackinac Island Great Turtle Half Marathon & 5.7 Mile
About this race
Join us for the 2026 Great Turtle Half Marathon and 5.7 Mile - one of the most scenic trail events in the country! Enjoy the beauty of Mackinac Island's Fall season running and walking the interior trails and shoreline during the last open weekend of the season. This is the 30th anniversary of this iconic Mackinac Island event!
All who register will enjoy a great garment in the Great Turtle tradition, a unique commemorative Turtle medal, goodies after the race and fun festivities! After the race, enjoy Halloween fun at Mission Point and Downtown Mackinac Island for adults and children, great end-of-season sales in the downtown shops, or just spend time enjoying the peace and serenity of the Island's interior!
Pick your distance
Running
Half Marathon
Run or Walk this challenging Half Marathon course. Course limit is 4 hours
5.7 Mile Run
Run or run/walk this shorter distance (but still challenging an scenic) race. No course time limit.
Half Marathon Virtual Race
Complete the Half Marathon distance wherever you choose at your own convenience. We'll mail your bib and swag, and once you complete the distance you can post your results.
5.7 Mile Virtual Race
Complete the 5.7 Mile distance wherever you choose at your own convenience. We'll mail your bib and swag, and once you complete the distance you can post your results. This race is eligible as part of the Mackinac Island Trio
Walking
5.7 Mile Walk
You must walk the entire distance - no running allowed AT ANY TIME during the race. No courst time restrictions
Race-day daylight
We have no recorded weather for Mackinac Island yet, but sunrise and sunset follow from the venue and the date.
The sun rises at 8:07 AM and sets at 6:37 PM local time (EDT) in Mackinac Island on October 24, 2026 — 10h 29m 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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Results — Mackinac Island Great Turtle Half Marathon & 5.7 Mile
Other races near Mackinac Island
Different organizers, within 40 miles, in the next three months
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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, 5 Mackinac Island events
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