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 triathlon at Fairport Harbor Lakefront Park on August 2, 2026, with swim or kayak starts plus a 20 km bike and 5 km run. Courses use Lake Erie and marked public roads with lifeguards and traffic control at key intersections.
A pool-based duathlon on August 2, 2026 at Bill Witt Park and Aquatic Center featuring a 400 m swim, a 3.1 mile run, and a final 400 m swim, with no open water and overall male and female awards.
Race #3 of the Southern Tier Triathlon Club Summer Tri Series in Cassadaga, NY offers Super Sprint, Sprint and AquaBike formats, accepts relay teams and paratriathletes, uses series points and has no cutoff times.
Coveathlon #4 in Newport Beach on 8 June 2026 offers 1K swims, 5K and 10K runs, combined swim-run events and relays, with limited series passes and registration from March 25 to June 1.
Final race of a six week series at Cedar Lake offering sprint and super sprint triathlons, individual and relay entries, family-friendly options, and required preregistration.
A weekend triathlon and endurance sports festival in Vancouver, WA featuring Sprint and Olympic triathlons, duathlons, aqua bike and paddle events, Friday 5K and 10K runs, a Kids Triathlon, women's sprint options and virtual races.
An adventure race at Curt Gowdy State Park offering 8 hour and 50 hour formats with mountain biking, trekking and paddling. Teams choose routes and checkpoints in a rogaine style format that emphasizes navigation and team strategy.
A weekend triathlon in Santa Rosa, New Mexico featuring Sprint and Olympic distances, relay teams, and aquabike options centered on a Twin Lakes swim. A sanctioned Kids Splash & Dash offers short, age-appropriate swim and run events the day before.
A triathlon and duathlon at Coeur d'Alene City Park and Beach on August 8, 2026. Athletes swim from cruise ships into the bay, bike along the lakeshore, and run on the Centennial Trail.
A point-to-point triathlon starting at East Canyon Reservoir and finishing in Morgan City, offering Sprint and Olympic formats plus aquabike, duathlon, and relay options, with a technical bike course and an optional VIP packet delivery.
A multi-discipline race day at Beaver Island State Park on August 8, 2026 featuring triathlon, duathlon, aquabike and relay options with distances from 400 m swims to 17.7 km bike legs.
A multi-format sprint event at Kill Creek Park on August 8, 2026, offering triathlon, duathlon, aquabike and aquathlon races with relay team options and a 400 participant cap.
A multi-event race day at Twin Lakes Bible Camp in Manson, Iowa, featuring Sprint, Super Sprint and a 500 m open water swim. Events include swim, bike and run segments with chip timing, on-site lodging options and age-group awards.
A multi-discipline event on Brigantine Beach on August 8, 2026 featuring a bay swim, an island bike loop and a 4 mile run. Multiple formats include relays, duathlon and aquabike and the race is capped at 600 athletes.
A USAT sanctioned multi-discipline event at Culver Academies featuring adult triathlon, duathlon, team options and kids races with varied distances, on-site amenities and pre-registration requirements.
Open-water swims, a SwimRun and a 5K relay on the Schuylkill River in Norristown, PA, with specific course loops, wetsuit temperature rules, limited support on course, and no onsite restrooms.
Sprint triathlon and a one mile open water swim at Fidler Pond Park in Goshen, Indiana on August 8, 2026. The triathlon includes a 500 yard swim, 15.8 mile bike, and 5K run; the mile swim is chip timed.
Experience a summer multisport event at Oak Hollow Lake featuring sprint triathlons, aquabike, and dedicated youth courses. Join individual or relay categories in a scenic waterfront setting in High Point North Carolina.
Two day triathlon in Hagerstown Maryland with a sprint, an aqua bike, and age specific youth races featuring pool swims and measured bike and run segments. Fees and registration windows vary by event.
A multisport festival in New Holland, Ohio on August 8, 2026, featuring triathlon, duathlon, aquabike, aquathlon, open-water swims, and 5k/10k/15k runs. Relay and virtual options are available, with training help, medals, photos, and a post-race meal..
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.