Indiana Triathlon Calendar 2025-2026

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Explore the best triathlons in Indiana for 2025-2026! Our updated list features 278 exciting races across the region. Find your next race in Indiana below and join the running community at these great events!

February 2026
Feb
1
Sunday

Groundhog 7-miler

5 mi 7 mi
Feb
7
Saturday

Cereal Killer Trail Run

Trail Run 15 km
Feb
14
Saturday

Frozen Trailfest

Trail Run 10 km
Feb
21
Saturday

Yeti Trail Half Marathon

Trail Run 14 mi
Feb
22
Sunday

Rose Island Winter Warrior

7 mi
Feb
28
Saturday

Polar Bear Winter Classic

5 km 5 mi 8 mi
March 2026
Mar
14
Saturday

Tombstone 50 Trail Run

Trail Run 30 km 50 km 50 mi
Mar
14
Saturday

Get Green Run

5 km
Mar
16
Monday

Circle City Donut Dash

5 km
Mar
21
Saturday

False Spring Trail Runs

Trail Run 10 km Half Marathon
Mar
21
Saturday

OPSF 50/50 Trail Race

Trail Run 10 km 14 mi 50 km 50 mi
Mar
22-21
Su - Sa

Sam Costa Half Marathon

11 km Half Marathon
April 2026
Apr
4
Saturday

Save the Drama for Your Llama 6 Hour Trail Run

Trail Run 6 hr
Apr
11
Saturday

Knobstone 50

Trail Run 50 mi
Apr
11
Saturday

Victory Marathon

5 km Half Marathon Marathon
Apr
18
Saturday

Carmel Marathon

5 km 10 km Half Marathon Marathon
Apr
18
Saturday

Friends of McCormick's Creek 5K

5 km
Apr
18
Saturday

Run for Justice 10K

5 km 10 km
Apr
18
Saturday

Race Against the Shake

5 km
Apr
18
Saturday

Travis Russell Run-a-Thon

5 km
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