Indiana
Indiana Triathlon Calendar 2026-2027
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!
March 2026
Indoor hybrid race at Indiana Tech Indoor Track on March 28, 2026 combining repeated runs with eight infield strength stations. Short or long distances, four weight levels, individual or two person teams, chip timed with t shirt and medal.
May 2026
Join The Mission at Deam Lake on May 2, 2026, a multi discipline adventure race offering 18 hour and 4 hour Mission Lite formats. Teams use map and compass across trekking, cycling and paddling for an unforgettable test of skill and teamwork.
Thunder in the Valley at Hawthorne Park in Terre Haute invites triathletes and duathletes to a scenic lake swim, rolling 20K bike and shaded flat 5K run with relay team options. A beloved event with over 40 years of tradition, awards and post race re..
Join the Fishers Sprint Triathlon at Geist Waterfront Park for a fast swim bike run with duathlon aquabike and team relay options. Scenic waterfront course and post race awards make it ideal for newcomers and seasoned racers.
A day at Wayne County Fairgrounds combining a 5K run with a 140-rep fitness challenge and a police K9 competition, with proceeds supporting a K9 officer foundation and awards for run and K9 categories.
Take on the USAT Indiana Championships at Prairie Creek Reservoir Park in Selma, IN, with Sprint and Olympic triathlons plus duathlon, aquabike and relays. Lake swim, rolling bike roads and a shaded park finish with custom medal and tee.
June 2026
Join America's Race Leon's Triathlon in Hammond, Indiana June 6 to 7 for sprint and Olympic races plus a kids Splash and Dash. Part of the Chicagoland Tri Series, the weekend honors and supports military, veterans and first responders.
Jump into the Clear Lake Triathlon on June 6, 2026 at Clear Lake Beach and Pub in Fremont Indiana, offering sprint and Olympic distances plus duathlon options. USAT sanctioned event with chip timing, shirts, medals and age group awards.
Celebrate the season opener at Deam Lake with Mudskipper US Swimrun Indiana I, offering swimrun races in mini and classic distances alongside a separate 5 kilometer trail run. Scenic lakeside courses and a welcoming vibe.
Cicero Triathlon on June 13, 2026 in Cicero IN offers sprint triathlon, duathlon and aquabike with individual and relay teams. USAT sanctioned, beginner friendly and competitive, with awards, shirts and one day USAT options.
A multi-discipline off road event in North Liberty, IN on June 20, 2026 featuring triathlon, duathlon, kayak triathlon, relays, and a 7K trail run with two notable hills and a 15 mile mountain bike section.
A two day corporate sports event at Indianapolis Motor Speedway on June 26 and 27, 2026. Companies compete by division and the program includes a wide range of activities plus a team package with tent, lunch, and unlimited entries.
Join the Ideal Beach Triathlon in Elkhart on June 27, 2026, featuring sprint and kids courses for beginners and experienced racers. Team relay options and a Heart of a Warrior award make this a welcoming event for all.
July 2026
IRONMAN 70.3 Muncie is North America's longest running 70.3 and an early qualifier for the 2027 World Championship. Swim Prairie Creek Reservoir, bike fast country roads and run rolling trails through Muncie Nature Park.
Join Indiana's longest running triathlon on July 11, 2026 in La Porte for sprint races, relays and aquabike options. With just 300 spots, this historic friendly race offers a fast, community vibe for all levels.
A sprint distance multisport event in Noblesville, IN on July 11, 2026 offering triathlon, duathlon, aquabike and relay formats. Events are USAT sanctioned and include shirt provisions, age group awards, and a small referral refund program.
Sprint triathlon events at Eagle Creek Park in Indianapolis on July 18, 2026. Multiple formats are offered for individuals and relays, with shirts, awards, USAT sanctioning and a referral refund program.
Take on Sprint, Olympic, or Half Iron distance triathlons at scenic Lake Clare in Huntington on July 19, 2026. USAT sanctioned and chip timed with swim safety support, race shirt, and finisher medal for all finishers.
August 2026
Join the Lake Max Triathlon and Duathlon at Culver Academies in August for adult triathlon and duathlon events, team relays and kids races. Scenic campus courses, plus post race food, music and a beer garden for racers and families.