Oklahoma Triathlon Calendar 2025-2026

Header image

Explore the best triathlons in Oklahoma for 2025-2026! Our updated list features 110 exciting races across the region. Find your next race in Oklahoma below and join the running community at these great events!

May 2026
May
16
Saturday

Die to Run Backyard Ultra

Backyard Ultra 2 mi 3 mi 4 mi
May
23
Saturday

Trail of Honor Memorial Run

Trail Run 5 km
May
30
Saturday

Poppy Love 5K

5 km
June 2026
Jun
6
Saturday

Aquarium Run

5 km
Jun
6
Saturday

Clinton Classic Run

5 km 10 km
Jun
27
Saturday

Muscogee Nation Festival 5K

5 km
July 2026
Jul
16-19
Th - Su

NSR Summer Camp

Triathlon
September 2026
Sep
12
Saturday

Run towards Recovery 5K

3 mi
Sep
12
Saturday

Conquer the Gauntlet - Tulsa

Obstacle Run 4 mi
Sep
12
Saturday

Sky Trail Adventure Challenge

Multisport
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series