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

September 2026
Join the 16th annual Eagle in the Sun Triathlon in El Paso for a sprint distance race featuring a pool swim and flat highway bike course. Choose between individual sprint, aquabike, or relay options for all levels.
Tri The Mountains Sprint Triathlon features a 400 yard swim, 18 mile bike, and 5K run in Blue Ridge, Georgia. Set for September 2026, it also includes relay and AquaBike events. Registration is open to ages 13 to 99 with a fee of $85.
The Erie Duathlon supports the Erie Cancer Wellness Center with a run-bike-run format through the roads around Pleasant Ridge Park. Participants can compete as individuals or in two-person relay teams. The event raises funds for free cancer support s..
Set in Newport, Oregon, this event features a variety of races including a Sprint Triathlon, Youth Triathlon, and a 5K. The community-focused event aims to support local youth athletics.
A community-run super-sprint triathlon in Albany, California, with main and short courses for kids and adults. The volunteer-powered event raises funds for Albany Middle and High School athletics and keeps year-by-year results and photos.
Experience a unique triathlon twist in Bay City featuring a 5 km paddle, 20 km bike, and 5 km run. Compete individually in the kayak division or partner up for the canoe team and relay categories.
A multisport event in Austin on September 20, 2026 with 18 event options across Olympic, Sprint and Youth Sprint formats. Events include triathlon, RunBikeRun, SwimBike, SwimRun, plus standalone swim and run races.
Experience the Giant Acorn Triathlon Festival at Lake Anna State Park. Choose between Olympic and Sprint distances featuring a beach time trial start, rolling bike courses, and shaded runs through the beautiful Virginia landscape.
A multi-sport festival in Tarpon Springs featuring sprint and Olympic triathlons, duathlons, and aquabikes. The scenic courses include a swim at Fred Howard Beach and a closed-road bike route across the causeway. All finishers get a medal, followed b..
A duathlon event on September 26, 2026 at Stewarts Lodge, Mendon Ponds Park in Honeoye Falls, NY, featuring two race events: Formulae Unum and Super Fury, with published entry fees and age eligibility for each event.
Experience a diverse morning of racing at the Skyline Aquatics Center featuring a sprint triathlon, duathlon, and a kids event. Finish on the track to earn your custom medal and t-shirt in this multi-sport community event.
A weekend triathlon festival in Kerrville, Texas offering race distances from SuperSprint up to the 70.3, plus a free kids run and a finisher festival with river floating, food, and beer.
Held in scenic Wrightsville Beach, this long running triathlon features a flat, short course. The event includes sprint, relay, aquabike, and youth races, plus a corporate division.
The Big Hurt is a four-leg adventure race in Port Angeles, featuring mountain biking, kayaking, road cycling, and running. Racers can tackle all four disciplines solo in the Iron Division or team up in various relay categories. All transitions happen..
Experience a USAT certified sprint triathlon in Montrose Colorado. This community event offers individual and team divisions for all ages from youth to seniors.
Experience a rugged trail adventure through the Colorado wilderness in Estes Park. Choose between a 50k run or bike and a heavy half marathon while supporting the local high school mountain bike team.
Navigate Delaware's diverse coast by bike, foot, and paddle in this 12-hour adventure race. With flexible routes and optional checkpoints, it welcomes both solo racers and teams. Strategy and endurance meet tides and new terrain on the Delmarva Penin..
Experience a unique race format at Civic Center Park featuring a reverse triathlon, a kids multisport event, and a standalone 5K. All participants receive medals and chip timing in this community athletic gathering.
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.