Ann Arbor Triathlon

The Ann Arbor Tri, Du, & Aquabike is a renowned multi-sport event taking place in Gregory, Michigan, on July 12, 2025. This event features a variety of competitions, including Olympic and Sprint triathlons, duathlons, aquabikes, relays, and an open water swim. Set in the picturesque Pinckney Recreation Area, participants will enjoy swimming in Halfmoon Lake, biking on scenic rural roads, and running along the Potawatomi Trail.

Established in 1986, this race is celebrated for its organization, enthusiastic volunteers, and vibrant community atmosphere, making it a favorite among athletes of all levels. Visit the organization's website for the most recent information.