Jul
26
Saturday
Registration

TriMillennium is a prominent multi-sport event held in Millennium Park, Grand Rapids, Michigan, featuring Olympic and Sprint distance triathlons, duathlons, and aquabikes. The Olympic race includes a 1,500-meter swim, 24.8-mile bike, and 6.2-mile run, while the Sprint distance consists of a 750-meter swim, 12.4-mile bike, and 3.1-mile run. The event caters to both elite athletes and beginners, offering relay options and a supportive environment.

Proceeds from TriMillennium benefit Bridge Street Ministries, a local organization focused on the development of inner-city youth. This event is a favorite among local athletes and promotes community engagement. Visit the organization's website for the most recent information.

Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
Kids Tri (ages 11-15)
Kids Tri (ages 6-10)
Olympic Tri
Sprint Tri

Events nearby

The Grand Rapids Triathlon, taking place on June 7-8, 2025, in Ada, MI, is a premier two-day event that caters to athletes of all skill levels. Recognized as one of the Top 5 Best Triathlons for Begin..
The River Trail Adventure Triathlon, scheduled for June 21, 2025, in Lowell, MI, features a unique format that replaces swimming with kayaking. Participants can choose between two race distances: the..
The Michigan Titanium is a premier multi-sport event taking place in Grand Rapids, Michigan, featuring a variety of races from August 10 to August 11, 2025. Participants can choose from several distan..