Triathlon Calendar United States 2025-2026

Txtri Canyon Park

Canyon Lake, Texas

Triathlon

Join TXTRI at Canyon Park for a scenic sprint triathlon or one of three DU3 formats on closed loop courses with some hills. Finishers get custom shirts, medals, and post race snacks in beautiful Texas Hill Country.

Unity Multisport Festival

Clearwater Beach, Florida

Aquathlon

Join the Unity Multisport Festival at Clearwater Beach on Nov 9, 2025 for beach runs, open water swims and aquathlons for all abilities. Relay options and youth learn to swim activities make it a lively seaside day for athletes and families.

James River Rush

Richmond, Virginia

Triathlon

OTILLO Swimrun Austin

Spicewood, Texas

Aquathlon

Ötillö Austin

Downtown Austin, Texas

Aquathlon

Join the ÖTILLÖ Swimrun in Austin on November 9 at Pace Bend Park, a scenic circuit around Lake Travis featuring single track forest trails, rocky shorelines and cliff jumps. Pick your distance and test swim and trail run skills on this rugged lakesi..

Sparty Triathlon

East Lansing, Michigan

Triathlon

Join the Sparty Tri in East Lansing on Nov 9, 2025 for a lively indoor triathlon with timed swim, bike and run sessions to test your pace. Proceeds support MSU Triathlon Club's bid for Nationals and racers of all levels are welcome.

15-16

Sa - Su

Oilman Texas Triathlon

Montgomery, Texas

Triathlon

Join the Oilman Texas Triathlon at Margaritaville Lake Resort in Montgomery Texas for family friendly events Saturday and half and sprint triathlons Sunday. Enjoy lake swims, scenic bike routes and resort run courses.

Harvest Hare

Broomall, Pennsylvania

Triathlon

Harvest Hare Swim and TriFest in Broomall offers pool swims, runs and multisport races at the heated Lawrence Park outdoor pool. Multiple distances and friendly race options make it a welcoming fall event.

Ironman Arizona

Tempe, Arizona

Triathlon

Experience IRONMAN Arizona in the Valley of the Sun, a fast, PR friendly course with sunny weather and a lake swim that offers World Championship qualification. Expect big crowds, family activities and resort amenities nearby.

Game On Florida Lagoon Triathlon

San Antonio, Florida

Triathlon

Last Chance Triathlon

St. Petersburg, Florida

Triathlon

Join the Last Chance Triathlon in St. Petersburg for a fast sprint with duathlon and aqua bike options on a scenic closed course at Fort De Soto. Enjoy awards, post race parties, and a BOCO running hat for finishers.

IC Tri for the Y

Ithaca, New York

Triathlon

Ashley River Adventure Race

Summerville, South Carolina

Multisport

Ashley River Adventure Race is held at Ashley River Park, 200 Renken Rd, Summerville, SC. The event features a 5K trail run through park trails, followed by a 7-mile river paddle on the Ashley River, with options for kayaking or stand-up paddleboardi..

Tali Sadlers Creek Off-Road Duathlon

Anderson, South Carolina

Cross Triathlon

Turkey Dri Tri Oak Brook Park District

Oak Brook, Illinois

Triathlon

Race the Turkey Dri Tri at Oak Brook Park District on Sunday, November 23, 2025, featuring indoor rowing cycling and a track run in timed heats. Open to ages 12 and up with a $25 entry and Golden Turkey prizes for top men and women.

December 2025

5-7

Fr - Su

CLASH Endurance Daytona

Daytona Beach, Florida

Triathlon

CLASH Endurance Daytona brings triathlons, relays, a holiday lights Jingle Jog 5K and kids races to Daytona Speedway, December 5 to 7, 2025. Race, cheer or swim a mile for charity in Lake Lloyd for an unforgettable Speedway weekend.

Ironman 70.3 Indian Wells - La Quinta

Indian Wells, California

Triathlon

Game On - Treasure Coast Tri

Fort Pierce, Florida

Triathlon

Monday

White Continent Triathlon

Brooklyn Park, Minnesota

Triathlon

The White Continent Triathlon is an inaugural Antarctica-based event organized by Marathon Adventures, run in conjunction with the White Continent 50k, Marathon & Half-Marathon. Scheduled for December 6–13, 2025, the triathlon is described as a real..