Indiana Triathlon Calendar 2025-2026

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Explore the best triathlons in Indiana for 2025-2026! Our updated list features 8 exciting races across the state. Find your next race in Indiana below and join the running community at these great events!

May 2025
May
10
Saturday

Thunder in the Valley

Triathlon
May
17
Saturday

Fishers Sprint Triathlon

Triathlon
June 2025
Jun
7
Saturday

Hueston Woods Duathlon

Duathlon
July 2025
Jul
12
Saturday

Ironman 70.3 Muncie

Triathlon
Jul
12
Saturday

La Porte Triathlon

Triathlon
August 2025
Aug
9
Saturday

Lake Max Triathlon

Triathlon
Aug
9
Saturday

Rock the Quarry Triathlon

Triathlon
September 2025
Sep
14
Sunday

Zoom RedHawk Triathlon

Triathlon
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