Mighty Mississinewa Triathlon
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Event details
The Mighty Mississinewa Triathlon takes place on September 12, 2026 at Miami State Recreation Area in Peru, Indiana. The event is organized by Ruble Racing and is USAT sanctioned. Race formats include triathlon (Sprint, Olympic, Half Iron), duathlon, aquabike, and 2- and 3-person relays. The event is limited to 1,000 total racers. Park entry and parking are included with race registration. Packet pickup and on-site registration are available at the race venue. Participants receive a race t-shirt and all finishers receive a medal. The event is professionally chip timed.
Courses and race rules
Swims are held in the Mississinewa Reservoir with a beach time-trial start and buoyed turns; wetsuit use follows USAT temperature rules. Bike courses use quiet county roads with low traffic and a few minor hills; Half Iron bike is two laps. The run is on a smooth paved park path and is an out-and-back route. Aid stations are available near transition and roughly every mile on the run; there are no aid stations on the bike course. Mandatory equipment and rule points include CPSC-approved helmets for cycling, no personal audio devices during the race, body marking and race numbers, and USAT race rules enforcement. Contingency plans include converting races to duathlon, bike-only, swim-and-run, or run-only formats if conditions make parts of the course unsafe. Visit the organization's website for the most recent information.
