Kansas Triathlon Calendar 2025-2026

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Explore the best triathlons in Kansas for 2025-2026! Our updated list features 108 exciting races across the region. Find your next race in Kansas below and join the running community at these great events!

September 2025
Sep
13
Saturday

Horsethief Canyon Trail Run

Trail Run 10 km
Sep
20
Saturday

Spooky Sprint - Wichita

5 km 10 km 13 mi
Sep
20
Saturday

Indy Races

Sep
27
Saturday

Flatrock 101

Trail Run 5 km 12 km 25 km 50 km
Sep
27-28
Sa - Su

Midwest Endurance Ultrapalooza

Trail Run 5 km 10 km ... 100 km 100 mi
October 2025
Oct
3-5
Fr - Su

Hell Creek 100

Trail Run 20 mi 100 km 100 mi 140 mi
Oct
10-12
Fr - Su

Heartland - Cassoday, KS

Trail Run 13 mi 26 mi ... 100 mi 125 mi
Oct
11
Saturday

Free State Trail Run

Trail Run 10 km 13 mi 26 mi 40 mi
Oct
12
Sunday

Fall Prairie Fire Marathon

5 km 13 mi 26 mi
Oct
12
Sunday

Frontier Freedom 10K

10 km
Oct
12
Sunday

Prairie Fire Half Marathon

13 mi
Oct
12
Sunday

Ad Astra Running Billy Mills 10K

10 km
Oct
18
Saturday

Neewollah 10k

10 km
Oct
18
Saturday

The Unbridled 50 Mile

Trail Run 10 mi 50 km 50 mi
Oct
19
Sunday

The Great Pupkin Run

5 km
Oct
25
Saturday

Kansas Rails-To-Trails Extravaganza

Trail Run 5 mi 13 mi ... 100 km 100 mi
November 2025
Nov
2
Sunday

Kansas Half Marathon

5 km 21 km
Nov
7-8
Fr - Sa

KUS 24 Hour Run

Backyard Ultra 6 hr 12 hr 24 hr
Nov
8
Saturday

Miola Madness - Fall Edition

Trail Run 10 km 3 hr ... 9 hr 12 hr
Nov
8
Saturday

Salina Crossroads Marathon

5 km 10 km 13 mi 26 mi
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