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 808 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

June 2026
Multiformat triathlon at Pleasant Prairie RecPlex on June 28, 2026, with swims in Lake Andrea, bike courses through village roads and run routes on paved and gravel paths in Prairie Springs Park.
A sprint triathlon in Pine Plains, New York, featuring an 800 yard swim, a 12.6 mile bike and a 3.3 mile run. Relay teams and paratriathletes are welcome and there are no cut-off times.
State championship triathlon at Creve Coeur Park on June 28, 2026, with sprint and Olympic formats plus relays, paratriathlon and a 6K. USAT sanctioned; packet pickup and bike drop occur the day before.
A triathlon day in Sonoma wine country offering seven event options across Olympic and Sprint formats, mostly from Johnson’s Beach with the 5k at La Crema Estate.
The 16th annual Electrolit TriWaco Triathlon in Indian Spring Park, downtown Waco, features sprint and Olympic races, aquabike and relay options, college and high school divisions, and a Try a Tri with a 400 m swim, 8 mile bike and 2 mile run.
A downtown Chattanooga triathlon on June 28, 2026 offering Sprint and Olympic distances. The race features a downstream swim in the Tennessee River and bike and run courses along the riverfront and Riverwalk.
A women only endurance event at Fort De Soto Park on June 28, 2026, offering sprint triathlon, duathlon, aquabike, and relay options. Early packet pickup is Saturday in Tierra Verde and race day pickup is at North Beach.
A fully supported sprint triathlon at Duck Creek Quarry Park featuring a 750 m swim, 15.5-mile bike, and out-and-back 5k run, with race apparel, a finisher medal, a 2026 beach wristband, and a 400-participant cap.
A community triathlon in historic Thurmond, WV featuring a 2-mile bike, 1.5-mile paddle, and 2-mile run. Solo, duo, and team entries are offered, with equipment requirements, watercraft rentals, chip timing, and on-course water stations.
Triathlon and aquabike races on June 28, 2026 in Colonial Beach, VA, with Olympic and sprint distances. Swim in the Potomac River, bike on flat, well paved roads with coastal and farmland views, and finish on a flat waterfront run.
On June 28, 2026 the Lake Pflugerville Triathlon offers sprint and Olympic triathlons, aqua bike races, relays, and a new run bike run duathlon. Sprint courses feature a 500 meter swim loop, a 13 mile bike on county roads, and a 3 mile lakeside run.
A multi-event race day at St. Joseph's College on June 28, 2026, featuring Sprint and Olympic triathlon courses, duathlon, aquabike, relays, and virtual options. Swim in Sebago Lake, bike on country roads, and run on campus trails.
A multi-format triathlon in Port Washington, NY featuring a 500 meter bay swim, an 11 mile bike on closed roads, and a 3.1 mile run on park paths. Event options include individual, relay, aquabike, virtual, and draft-legal races.
Manitou Triathlon at White Bear Lake County Park offers sprint and Olympic triathlons plus swim bike only options, time trial self seeded starts, relay entries, resurfaced bike routes, flat lakeside running, free parking, and on site race photography..
A combined SwimRun and open water swim event at Torrey Public Beach on Seneca Lake on June 28, 2026. Offers two SwimRun distances including a 9.4K looped course and open water swims of 1K, 2K, and 3K with provided swim caps.
Evergreen Lake Triathlon in Bath PA offers Super Sprint, Sprint, Duathlon, Aquabike and swim-only options on lake, road and gravel courses, with USA Triathlon sanctioning and multiple-entry discounts available.
The Cohasset Triathlon takes place in Cohasset, MA on June 28, 2026, offering Individual Triathlon, Individual AquaBike, and Relay Team options; registration runs from December 1, 2025 to June 26, 2026 with listed entry fees.
Ames Triathlon on June 28 2026 offers swim bike and run formats around Ada Hayden Lake in Ames Iowa. The event is chip timed, includes a paratriathlon category, and features individual, relay, aquabike, duathlon, and swim only races.
A one-day multi-discipline event at Lake Montclair in Montclair VA featuring sprint triathlon, duathlon, aquabike, relay and youth Splash and Dash races with specified swim, bike and run distances.
Palisades Park Triathlon/Duathlon in Alpine, NJ features an open water swim in the Hudson River, a 10 mile out and back bike on Henry Hudson Drive, and a 3 mile run. Relay and aquabike options are available.
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.