Missouri Triathlon Calendar 2025-2026

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Explore the best triathlons in Missouri for 2025-2026! Our updated list features 153 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!

November 2025
Nov
27
Thursday

Galloping Gobbler 15K Challenge

5 km 10 km 15 km
Nov
27
Thursday

Anytime Fitness Turkey Trot

5 km
Nov
27
Thursday

Hillcrest Hope Giving Thanks 5K

5 km
Nov
27
Thursday

Gobble Wobble - Cape Girardeau

5 km
Nov
29
Saturday

Turkey Trails - Saint Joseph

5 km 10 km
Nov
29
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
December 2025
Dec
6-7
Sa - Su

Last Chance Ultra

Trail Run 10 mi 50 km 50 mi 100 mi
Dec
6
Saturday

Wild in the Woods - 5 & 10 Mile Trail Race

Trail Run 5 mi 10 mi
Dec
6
Saturday

Wildwood Trail Marathon

Trail Run 13 mi 26 mi
Dec
6
Saturday

Mary Mingle 5K

5 km
Dec
13
Saturday

Westport Santa Dash

5 km
Dec
13
Saturday

Candy Cane Course- Parkville (KC)

5 km 12 km
Dec
13
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
Dec
27
Saturday

Run for the Ranch

5 km 13 mi 26 mi 6 hr
Dec
27
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
January 2026
Jan
3
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
Jan
17-18
Sa - Su

The Shippey Endurance Runs

Trail Run 20 mi 40 mi 100 km 100 mi
Jan
17
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
Jan
24
Saturday

Jack Frost 5k Run

5 km
Jan
24
Saturday

Bleak Midwinter Endurance Run

Backyard Ultra 1 hr 3 hr 6 hr 12 hr
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