Indiana Triathlon Calendar 2026-2027

Header image
Monthly updates for Indiana

Get new running races (and updates) in your inbox every month.

Explore the best triathlons in Indiana for 2026-2027! Our updated list features 26 exciting races across the region. Find your next race in Indiana below and join the running community at these great events!

August 2026
Dive into the 11th annual Rock the Quarry Triathlon and Mile Swim at Fidler Pond Park in Goshen Indiana on August 8, 2026. Choose a sprint tri or chip timed mile swim in a scenic former rock quarry with fast flat bike and run courses.
Race Indy Sprint Tri August on August 22, 2026 at Eagle Creek Park in Indianapolis, a USAT sanctioned sprint with individual and relay entries. Swim 500 m, bike 10 mi and run 3 mi, plus awards and guaranteed shirts for early registrants.
A women focused multi-discipline event in Cicero on August 29, 2026 offering triathlon, duathlon, aquabike and relay options with awards, womens softstyle shirts and a referral refund program.
September 2026
Race the Mighty Mississinewa Triathlon at Miami State Recreation Area in Peru, Indiana with sprint, Olympic, Half Iron, duathlon, aquabike and relay options on a scenic reservoir and quiet country roads. Chip timed event with shirts, medals and live..
Join the Zoom RedHawk Triathlon & Multisport Festival at Hueston Woods Beach for triathlons, duathlons, aquabikes, open swims and runs across beginner to 1/3 Iron distances. Enjoy a finisher medal, event tee and catered post race food.
October 2026
Triathlon at Lake Lemon on October 4 2026 offering Sprint and Olympic distances plus duathlon aquabike and relay options. Swim is in Lake Lemon and bike and run courses use local foothills and park roads.