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Indiana Triathlon Calendar 2026-2027

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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 25 exciting races across the region. Find your next race in Indiana below and join the running community at these great events!

March 2026
Mar
28
Sa

Induro Hybrid Race - Fort Wayne

Obstacle Run Multisport 3 km
May 2026
May
2
Sa

CIA Central Indiana Adventure Race

Multisport
May
9
Sa

Thunder in the Valley

Triathlon
May
16
Sa

Fishers Sprint Triathlon

Triathlon
May
16
Sa

Seara's Legacy K9 Trials & 140 Challenge

Multisport
May
17
Su

Muncie Triathlon - USAT State Championship

Triathlon
May
23
Sa

Fox Island Triathlon

Triathlon
June 2026
Jun
6-7
Sa - Su

Leon's Triathlon

Triathlon
Jun
6
Sa

Clear Lake Triathlon - Indiana

Triathlon
Jun
7
Su

Mudskipper US Swimrun Indiana

Aquathlon
Jun
13
Sa

Cicero Triathlon

Triathlon
Jun
20
Sa

Dino Off-Road Triathlon

Multisport
Jun
26-27
Fr - Sa

Indiana Sports Corp Corporate Challenge

Multisport
Jun
27
Sa

Ideal Beach Triathlon

Triathlon
July 2026
Jul
11
Sa

Ironman 70.3 Muncie

Triathlon
Jul
11
Sa

La Porte Triathlon

Triathlon
Jul
11
Sa

Morse Park Triathlon

Triathlon
Jul
18
Sa

Indy Sprint Triathlon

Triathlon
Jul
19
Su

Huntington 1/2 Iron

Triathlon
August 2026
Aug
8
Sa

Lake Max Triathlon

Triathlon