BestRacesroad · Olympic triathlon · Sprint triathlon · Olympic aquabike · and 4 more
Ann Arbor Tri, Du, & Aquabike
| Distances | Olympic triathlon, Sprint triathlon, Olympic aquabike, Sprint duathlon, Sprint relay, Olympic relay, Open water 1-mile swim |
| Surface | road |
| USATF certified | No |
| Boston qualifier | No |
From the race's RunSignup listing, last updated July 26, 2026.
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Giveaways in MI
Win a free entry to 44th Annual Reeds Lake Resolution RunGrand Rapids, MI · free to enter · closes November 29, 2026 at 11:59 PM ESTRace-day weather
What the weather did on July 10 in each of the last 5 years, measured at Chelsea, 12.3 miles from Gregory.
| Year | High | Low | Rain |
|---|---|---|---|
| 2026 | 86°F | 67°F | 0.05 in |
| 2025 | 81°F | 61°F | 0.04 in |
| 2024 | 82°F | 63°F | 3.08 in |
| 2023 | 75°F | 54°F | none |
| 2022 | 80°F | 49°F | none |
Daily highs and lows, not start-line temperatures: most races start in the cool of the morning, closer to the low. Source: NOAA National Centers for Environmental Information, GHCN-Daily.
Stay near Gregory
Hotels and rentals in and around Gregory, MI.
Preset to race weekend, Jul 9 – 11.
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