Saturday, October 24, 2026Mackinac Island, MI
Mackinac Island Great Turtle Half Marathon & 5.7 Mile
2 events
- 5.7 Mile Run9.2KRoadStarts 10:30 AM
- Half MarathonHalfRoadStarts 10:45 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 78/100
- High / low
- 50° / 41°F
- 10° / 5°C
- Humidity
- 83%
- Dew point 40°F
- Chance of rain
- 58%
- Wind
- 11 mph
- Average
- Rain on about 58% of days around this date.
- Often windy: about 11 mph on average.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- Typical timesFinish times are typical for half marathons.1 year, 705 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2025 | Half Marathon · Half | 705 | 2:17:08 | 2:07:19 | 2:24:20 |
| 2025 | 5.7 Mile Run · 9.2K | 824 | 1:07:39 | 1:02:37 | 1:10:35 |
Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.