Triathlon Calendar United States 2025-2026

Lake Country Triathlon

Oconomowoc, Wisconsin

Triathlon

Mountain Lakes Triathlon

Guntersville, Alabama

Triathlon

Lake Springfield Triathlon

Springfield, Illinois

Triathlon

First Responders "Bring in the Backup" Triathlon

Northwood, Iowa

Triathlon

Celebrate local heroes at the First Responders Bring in the Backup Triathlon in Northwood, IA. Sprint, relay, aquabike and duathlon options welcome all as first responders lead the field and proceeds support local programs.

Matt Mason "Cowboy UP" Triathlon

Smithville, Missouri

Triathlon

Honor Matt Mason and support those who made the ultimate sacrifice at the Cowboy UP Triathlon and Duathlon at Smithville Lake. Choose triathlon, duathlon, relay or virtual entry and enjoy scenic swim bike and run courses with age group and overall aw..

Ironman 70.3 Maine

Augusta, Maine

Triathlon

Join IRONMAN 70.3 Maine in Augusta on July 26, 2026 for a fast downriver swim on the Kennebec River and a hilly bike plus rolling half marathon through scenic Maine. Finish at the State Capitol amid big local support and relay options.

Tri-ing for a Cure Triathlon

Dousman, Wisconsin

Triathlon

Join the 18th Triing for A Cure Triathlon on July 26 at Ottawa Lake State Park in Kettle Moraine Forest for sprint and Olympic distances and relay entries. Enjoy scenic lake swims, bike roads and finish swag with photos.

Gillie Girl Triathlon

Camillus, New York

Triathlon

Celebrate women athletes at the Gillie Girl Sprint Triathlon in Camillus, NY. Swim two lake loops then tackle a flat 15 mile bike and a 5K run with individual, relay and Aquabike options on a spectator friendly course.

Findley Lake Triathlon Festival

Findley Lake, New York

Triathlon

Smiley Sprint Triathlon

Clemmons, North Carolina

Triathlon

Smiley Sprint Triathlon in Clemmons NC delivers a fast, friendly sprint triathlon for beginners and vets. Run by experienced Ironman athletes, the non profit event supports local charities and offers clinics, live music and medals.

Wednesday

Brick Endurance Summer Triathlon Series

Durham, North Carolina

Triathlon

August 2026

Triathamom

Riverton, Utah

Triathlon

Event overview TriathaMOM is a fully supported, non-competitive, women only triathlon held in Riverton, Utah on 2026-08-01. The event location is 12765 S 1125 W, Riverton, UT 84065. The race is offered in at least two entry categories: Sprint and Spr..

Xterra Portland

Gaston, Oregon

Cross Triathlon

Event overview XTERRA Portland is an off-road triathlon event on August 1, 2026, held at Hagg Lake (Bobcat Cove) near Gaston, Oregon. The event is part of the XTERRA World Tour and includes multiple race categories for individuals, teams, youth, and..

YFC Seeley Lake Challenge Triathlon

Seeley Lake, Montana

Triathlon

Dive into the YFC Seeley Lake Challenge triathlon and duathlon on August 1 at Seeley Lake, Montana. Open water swim, scenic bike and a shaded trail run under old growth larch make this a family friendly race with kids and team options.

Greenfield Triathlon

Greenfield, Massachusetts

Triathlon

Brewhouse Triathlon

Duluth, Minnesota

Triathlon

Andy's Race

Powdersville, South Carolina

Triathlon

Andy’s Race returns to Greenville on Sunday August 2 2026 at the Westside Aquatic Center with Sprint Triathlon, Aquabike, Duathlon and relay options. Enjoy a fast pool swim, rolling 15 mile bike and a two lap 3 mile run in a spirited summer race.

Wednesday

Southern Tier Triathlon Club Summer Tri Series

Cassadaga, New York

Triathlon

Coeur d'Alene Triathlon

Coeur d'Alene, Idaho

Triathlon