Ann Arbor Triathlon
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Event
The Ann Arbor Tri, Du, & Aquabike takes place on Saturday, July 11, 2026, at Pinckney Recreation Area at Halfmoon Lake in Gregory, Michigan. It is designated as a USA Triathlon State Championship race. The event includes open-water swimming at Halfmoon Lake, paved road cycling on nearby country roads, and trail running on the Potawatomi Trail. All courses are subject to change for safety.
Race formats and distances
- Olympic Triathlon: 1500 m swim, 28 mi bike, 5.3 mi run
- Sprint Triathlon: 750 m swim, 14 mi bike, 3.5 mi run
- Olympic Aquabike: 1500 m swim, 28 mi bike
- Sprint Duathlon: 2 mi run, 14 mi bike, 3.5 mi run
- Olympic and Sprint Relay: 2- or 3-person teams
- Open Water 1-Mile Swim: timed 1 mile
Location and logistics
The day-use facility address is 8725 Hankerd Rd, Gregory, MI. A state park permit or Recreation Passport is required to enter Pinckney Recreation Area. Directions from US-23 include exiting at North Territorial Rd and following Hankerd Rd to the beach.
Other details
Host clubs are the Ann Arbor Tri Club and the University of Michigan Tri Team. Published entry fees vary by event (examples: triathlons $99–$142, aquabike $142, duathlon $99, relays $200–$250, open water swim $50). The event follows a Leave No Trace zero-waste policy and offers a post-race food service for participants. Visit the organization's website for the most recent information.
