Michigan
Michigan Triathlon Calendar 2026-2027
Monthly updates for Michigan
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Michigan for 2026-2027! Our updated list features 29 exciting races across the region. Find your next race in Michigan below and join the running community at these great events!
August 2026
Tamarac Tri on Saturday, August 15, 2026 at Fremont Lake Park invites racers age 16 and up to enter as an individual or a relay team. Swim 750 m, bike 12.4 miles and run a 5K along scenic local roads and lakeside paths.
Take on a unique Dry Tri and 5K Run/Walk in Chesaning on August 15, 2026, starting and finishing at Showboat Park. Bike scenic back roads, run riverside and paddle to the finish for a fun, community multisport challenge.
Take on Michigan Titanium in Grand Rapids on August 16, 2026, with races from swim only to relays and epic 140.6 and 70.3 mile triathlons. Choose solo, team or virtual options and challenge yourself on a scenic multisport course.
Race the Straits of Mackinac in Mackinaw City offers sprint to long course multisport races for all levels. Swim under the Mackinac Bridge, ride toward Wilderness State Park and finish in Fort Mackinac Park.
myTEAM TRIUMPH West MI MiTi Tri in Grand Rapids on August 16, 2026 offers the full 140.6 mile race plus half, Olympic, sprint, relays, aquabike, duathlon and swim only options; Captain and Angel sprint entries plus volunteer slots are listed.
Join the Barron Lake Triathlon in Niles, Michigan on August 22, 2026 for a scenic sprint swim, bike, and run that starts from the sandy shore of Barron Lake. Family friendly races include team relays plus kids competitive and non competitive events.
September 2026
Race the MI Triathlon and Duathlon Championship at scenic Belle Isle State Park in Detroit on September 6, 2026. Multiple distances including triathlon, duathlon, aquabike and relays make it a great day for racers of all levels.
Finish the season at Stony Creek Metropark with Last TRI, a multisport festival offering swim, bike and run options for every level from super sprint to Olympic and relay teams. Safe, well run courses include a closed to traffic bike route.
October 2026
Join the 6th Annual Grand River Color Tour Triathlon on October 3, 2026 in Eaton Rapids, Michigan, featuring a 2 km kayak paddle, a 15 mile bike ride and a 5 km color run. Celebrate crossing the line with a festive powder color toss.