Oklahoma
Oklahoma Triathlon Calendar 2025-2026
Monthly updates for Oklahoma
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Oklahoma for 2025-2026! Our updated list features 6 exciting races across the region. Find your next race in Oklahoma below and join the running community at these great events!
July 2026
Join Negative Split Racing for a four day triathlon camp in Ardmore, Oklahoma, July 16 to 19, 2026, with coached open water swims at Lake Murray and scenic but demanding hilly bike routes. Enjoy group sessions, Friday and Saturday dinners, and giveaw..
Join the TRI It Series in Guthrie OK on July 18 2026 with Olympic, Sprint, Aquabike, duathlon and a free Youth Under 12 race. Enjoy a scenic lake swim, shoreline spectator views and races for every level.
Tri In July on July 18, 2026 at Sooner Pool in Bartlesville is a sprint triathlon benefiting the Richard Kane YMCA scholarship. Choose individual, relay or kids races, enjoy a shaded Parkway run, finisher medal, T shirt and post race snacks.
September 2026
Sky Trail Adventure Challenge at Camp McClintock mixes trail running, a climbing tower, zipline and kayaking for an action packed outdoor race. Race September 12 in Bartlesville to test your skills and support Cherokee Area Council youth.
October 2026
Challenge yourself at the TRI It Racing Clubs Du Kona multi sport series at scenic Mitchell Park Guthrie Lake with sprint, super sprint, aquabike and duathlon options for all levels. Youth under 12 can enter free with registration follow up.