Michigan
Michigan Triathlon Calendar 2026-2027
Monthly updates for Michigan
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Explore the best triathlons in Michigan for 2026-2027! Our updated list features 33 exciting races across the region. Find your next race in Michigan below and join the running community at these great events!
June 2026
A multisport event at Lake Arvesta Farms featuring a waterslide swim start, bike courses on roads closed to traffic, and runs across the property. Formats include triathlon, aquabike, duathlon, and 2- or 3-person relays.
A sprint triathlon at Byram Lake in Linden, Michigan on June 20, 2026 offering adult and youth divisions. The courses feature a 300 yard swim, an 11.3 mile bike loop and a 2 mile run with staggered wave starts.
A triathlon in Lowell, Michigan on June 20, 2026 that replaces the swim with kayaking and pairs trail and road biking and running. Two distance options are offered with individual, relay, rental, and donation entry types.
The 21st Motor City Triathlon in June 2026 is held on Belle Isle in Detroit and features Olympic, Sprint and Super Sprint triathlons, aquabikes, a duathlon and relay options with varied registration windows and fees.
Experience a women focused multisport event at Waterloo State Recreation Area featuring triathlon, duathlon, and aquabike options. Enjoy scenic paved bike routes and mixed terrain runs followed by a festive post race pancake breakfast.
July 2026
Experience a classic multi sport event at Michigan's Pinckney Recreation Area. Choose between triathlon, duathlon, and aquabike distances featuring open water swims and scenic trail runs.
A sprint triathlon on July 11, 2026 in Downtown New Baltimore featuring a 1/2 mile swim, 11 mile bike and 3 mile run. Individual and relay entries compete across standard age divisions with timed results posted online.
Multi-discipline race day in Grand Haven, Michigan on July 12, 2026 offering sprint and Olympic triathlon, duathlon, aquabike and relay options with a swim in Lake Michigan and a run on the city boardwalk.
Sprint triathlon and duathlon at Willard Beach Park in Battle Creek on July 18, 2026, with 2 and 3 person relays, a youth Super Sprint, virtual options, and per person registration that includes a shirt and meal.
TriWalloon is a sprint distance multisport event at Walloon Lake, Michigan, featuring swim, bike, run, a duathlon, an aquabike, and relay options. All proceeds support the inner city ministry of Bridge Street Ministries.
TridelSol Olympic Triathlon on July 19, 2026 at YMCA Camp Manitou Lin features a beach swim, bike and lakeshore run; entries are limited to 600 and proceeds support myTEAM TRIUMPH West Michigan.
Tri Millennium on July 25, 2026 at Millennium Park in Grand Rapids offers sprint and Olympic triathlon, duathlon, aquabike and relay options plus youth races. Registration includes a shirt, medal, and free entry into the Michigan Tri Series.
A multi-sport event at Millennium Park in Grand Rapids on July 25, 2026, with sprint and Olympic triathlon formats plus duathlon and aquabike. Proceeds support Bridge Street Ministries and volunteer and team roles are offered.
A community triathlon and 5K organized by the Rudyard Lions Club on Sunday July 26 2026. The event welcomes individuals and teams and provides online registration, rules, a course map and past results.
August 2026
A sprint triathlon at Fremont Lake Park on August 15, 2026, featuring a 750 m swim, 12.4 mile bike and 5K run. Individual and relay entries are available, the field is limited to 150 participants, and specific swim and helmet rules apply.
A community event in Chesaning on August 15, 2026 featuring a 15.85 mile dry tri with bike, run, and kayak or canoe segments plus a separate 3.1 mile 5K. Registration runs January 1 to May 31 with listed fees for each event.
Michigan Titanium in Grand Rapids on August 16, 2026 features triathlon, duathlon, aquabike, relay and swim only races plus a virtual solo option, with distances from sprint up to the full 140.6 mile ultra triathlon.
Multiple triathlon, aquabike, and duathlon formats take place on August 16, 2026, in Mackinaw City with a swim under the Mackinac Bridge, a bike route to Wilderness State Park, and finishes in Fort Mackinac Park.
Team-based Olympic distance triathlon in Grand Rapids on August 16, 2026, with Captain and Angel roles, volunteer opportunities, and an Olympic course of 0.93 mile swim, 40K bike, and 10K run.
The T Rex Triathlon & Duathlon Series offers three midweek sprint race dates in June, July and August 2026 at Island Lake State Recreation Area. Events include sprint triathlon and duathlon distances and finishers receive medals and finish food.