Indiana Triathlon Calendar 2025-2026

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Explore the best triathlons in Indiana for 2025-2026! Our updated list features 305 exciting races across the region. Find your next race in Indiana below and join the running community at these great events!

January 2026
Jan
11
Sunday

FroMoMoFo 20 Miler

Trail Run 10 mi 20 mi
February 2026
Feb
14
Saturday

Frozen Trailfest

Trail Run 10 km
March 2026
Mar
14
Saturday

Tombstone 50 Trail Run

Trail Run 50 mi
Mar
21
Saturday

False Spring Trail Runs

Trail Run 10 km 13 mi
Mar
21
Saturday

OPSF 50/50 Trail Race

Trail Run 10 km 14 mi 50 km 50 mi
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