Mighty Mississinewa Triathlon

SEP
12
2026
Triathlon at Miami State Recreation Area offering sprint, Olympic and half iron distances with USAT sanction, chip timing, relays and aquabike options.
Sat 12 Sep 2026
Sprint 500 m 12.5 mi Sprint 500 m 12.5 3.1 mi Sprint 1 12.5 3.1 mi Olympic 1500 m 25 mi Olympic 1500 m 25 6.2 mi

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Mighty Mississinewa Triathlon

The event is organized by Ruble Racing at Miami State Recreation Area in Peru, Indiana. It includes multiple triathlon formats, duathlons, relays, and aquabike entries, and is limited to 1000 total racers.

Distances offered include:

  • Sprint Triathlon: 500 yard swim, 12.5 mile bike, 3.1 mile run
  • Olympic Triathlon: 1500 meter swim (2 laps), 25 mile bike, 6.2 mile run
  • Half Iron Triathlon: 1.2 mile swim, 56 mile bike, 13.1 mile run

Additional formats include sprint duathlon with a one mile run start, Olympic and half iron duathlons with a 3.1 mile run start, and two person and three person relays for sprint and Olympic distances. Aquabike participants finish in transition two and then complete a short finish.

The race is USAT sanctioned and professionally chip timed with split results. All participants receive a race t shirt and all finishers receive a medal. The swim takes place in Mississinewa Reservoir with a time trial beach start; buoys mark turns and many boats may be on the water. Wetsuit rules follow USAT temperature guidelines and may affect awards eligibility.

The bike course uses smooth low traffic county roads with signage and course marshals; there are no aid stations on the bike. The run is an out and back on a paved park path with aid stations about every mile offering water, gatorade, and coke. Transition procedures, helmet and equipment rules, body marking, wristbands, parking, and contingency plans for unsafe conditions are described for race day. Packet pickup and onsite registration are conducted on race day only. Visit the organization's website for the most recent information.

13 mi
Half Iron Triathlon Run
6 mi
Olympic Triathlon Run
3 mi
Sprint Triathlon Run
3 mi
Olympic Duathlon Run
3 mi
Half Iron Duathlon Run
Sprint Duathlon Run
Sprint Triathlon Swim
Sprint Triathlon Bike
Olympic Triathlon Swim
Olympic Triathlon Bike
Half Iron Triathlon Swim
Half Iron Triathlon Bike
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