Triathlon Calendar United States 2026-2027

Header image
Monthly updates for United States

Get new running races (and updates) in your inbox every month.

Explore the best triathlons in the United States for 2026-2027! Our updated list features 896 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

August 2026
A multi format triathlon at Bridge Sports Complex on August 15, 2026 with sprint, super sprint and kids races, indoor pool swim, pavement bike and trail run, team relays allowed and guaranteed T shirt for early registrants.
Event Overview The Fox Island Triathlon #2 is a sprint triathlon held at Fox Island County Park in Fort Wayne, Indiana. The event offers a 500-yard swim in Bowman Lake, a 12-mile bike on mostly flat county roads, and a 3.1-mile run on paved trails an..
A multisport race day at Joseph A Citta Scout Reservation offering Olympic and Sprint triathlon, duathlon, aquabike, and relay options with digital registration, USAT requirements, and awards by overall, age group, and specialty divisions.
A one-day triathlon at Lake Meridian Park in Kent, Washington on August 15, 2026 offering Olympic, Sprint, Super Sprint and relay formats. Finishers receive medals and top age-group athletes earn pint glasses; race T-shirts are guaranteed for registr..
A USAT sanctioned sprint triathlon at Crystal Lake in Averill Park, NY with a 0.5 mile swim, 18 mile bike and 3 mile run. Individual, team and aquabike categories are offered and registration windows vary by event.
Olympic distance triathlon at Lake Terramuggus in Marlborough, CT on August 15, 2026 featuring individual, relay, and aquabike options, age-group awards, and specific bike course and safety rules.
A multi-discipline event at Snake River Landing in Idaho Falls on August 15, 2026, featuring sprint and Olympic triathlon distances, youth divisions, duathlon options and a 5K run.
A USAT sanctioned sprint triathlon in Alamo Heights featuring a 400 m pool swim, 9 mile bike with three loops across Olmos Park Dam, and a 4 km out and back run, plus relay options and age group awards.
A sprint triathlon in Cable, Wisconsin on August 15, 2026 featuring a 750 meter swim, a 12 mile bike and a 5 kilometer run. Individual and relay divisions are offered and the event supports the planned Telemark Activity Center.
A Sprint triathlon and kid's triathlon weekend in Clarksville, Arkansas featuring an open water swim at Lake Ludwig, paved bike routes through town and countryside, and a run on the Spadra Creek Nature Trail that finishes downtown.
Multi-sport races and a 600 m open water swim at King’s Pointe Resort in Storm Lake supporting Kiwanis youth projects, with marked courses, volunteer support, packet pick up, shirts, and medals for participants.
A triathlon at Lake Almanor on August 15, 2026 with run, bike, and kayak or paddleboard legs; offered as solo, relay, or virtual entries. Registrations support residential housing and therapeutic services for child survivors through Courage Worldwide..
A chip timed triathlon in Sierra Vista on August 15 2026 featuring a 400 yard swim, 14 mile bike and 5 kilometer run. Individual and male, female, or coed relay options are available for ages 10 and up.
A multi-discipline triathlon at Grovedale Winery in Wyalusing, PA on August 15, 2026 featuring kayaking, biking, and running stages, on-course water stations, and a finish area with awards, food and live music.
An adventure race at Stratton Mountain Resort on August 15, 2026 combining trail running, mountain biking and orienteering. Solo and team entries for 2 to 4 people, with maps revealed shortly before the race and multiple checkpoints on course.
Two day Pennsylvania State triathlon championships at Moraine State Park with Olympic, sprint, and youth races. The program also features relays, aqua bike, duathlon, adventure race, and a Mighty Double. USA Triathlon sanctioned.
Experience a sprint triathlon at Walnut Beach featuring a 500 yard swim, an 11.15 mile bike, and a 5K run. Join as an individual or part of a team for this timed community event in Ashtabula.
Bluff Land Triathlon in Rushford combines a 3.1 mile run, 15.5 mile bike and 2.1 mile hike around Creekside Park and Magelssen Bluff. The event raises funds for scholarships for Rushford Peterson High School seniors and includes course volunteers.
A multi-event race day in Powell, WY on August 15, 2026 featuring a sprint triathlon with a 500 yd pool swim, a 15 mile bike and a 5K run, a team triathlon option, and a separate 5K run/walk.
A chip timed sprint triathlon, sprint relay and 5k around Stansbury Lake with an open water swim, a fast out and back bike route through Delgada Lane and Erda, and transition at Solomon Park. Registration is capped.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.