Indiana Triathlon Calendar 2025-2026

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Explore the best triathlons in Indiana for 2025-2026! Our updated list features 222 exciting races across the region. Find your next race in Indiana below and join the running community at these great events!

November 2025
Nov
27
Thursday

Turkey Day 5K - Greenfield

5 km
Nov
28
Friday

Black Friday 5K - Shelbyville

5 km
December 2025
Dec
6
Saturday

Rotary Santa Run 5K

5 km
Dec
6-7
Sa - Su

Jackson County 50-50 Ultramarathon

Trail Run 10 mi 50 km 100 km
Dec
6
Saturday

Dash 4 Shelter

5 km
Dec
6
Saturday

Christmas in the Park

5 km
Dec
13
Saturday

Flannel 5K Run

5 km
Dec
13
Saturday

Grandview Half Marathon

5 km 13 mi
Dec
14
Sunday

Festivus Run

5 km
Dec
14
Sunday

Frosty Frolic - Fort Wayne

5 km
Dec
20
Saturday

Santa Run & Walk 5K

5 km
Dec
21
Sunday

Candy Cane Course - Indianapolis

5 km 12 km
Dec
24
Wednesday

Rudolph Run 5K - Shelbyville

5 km
Dec
24
Wednesday

Jingle Jog - Bluffton

5 km
January 2026
Jan
11
Sunday

FroMoMoFo 20 Miler

Trail Run 10 mi 20 mi
February 2026
Feb
7
Saturday

Cereal Killer Trail Run

Trail Run 15 km
Feb
14
Saturday

Frozen Trailfest

Trail Run 10 km
March 2026
Mar
14
Saturday

Tombstone 50 Trail Run

Trail Run 30 km 50 km 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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