Oklahoma Triathlon Calendar 2025-2026

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Explore the best triathlons in Oklahoma for 2025-2026! Our updated list features 8 exciting races across the state. Find your next race in Oklahoma below and join the running community at these great events!

April 2025
Apr
6
Sunday

Tulsa Area Triathletes Chris Brown Tulsa Duathlon

Duathlon
May 2025
May
4
Sunday

Tulsa Area Triathletes Spring Fever Triathlon

Triathlon
June 2025
Jun
22
Sunday

Tulsa Tri

Triathlon
July 2025
Jul
17-20
Th - Su

NSR Summer Camp

Triathlon
Jul
19
Saturday

Territorial Triathlon Series

Triathlon
Jul
19
Saturday

Tri In

Triathlon
September 2025
Sep
13
Saturday

Sky Trail Adventure Challenge

Multisport
October 2025
Oct
4
Saturday

TRI-It Racing Clubs Du Kona Multi-sport Series

Triathlon
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