Washington
Washington Triathlon Calendar 2026-2027
Monthly updates for Washington
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Washington for 2026-2027! Our updated list features 31 exciting races across the region. Find your next race in Washington below and join the running community at these great events!
August 2026
The Lake Tye Triathlon in Monroe offers a range of multisport formats at its 17th annual event. Choose from Sprint, Olympic, Youth, Duathlon, and Aquabike races, with relay options available. This USAT-sanctioned race provides finisher medals and pos..
The Sullivan Lake Triathlon is a sprint event set in the scenic Colville National Forest. Participants complete a 750m swim, a 20km bike ride, and a 2.5km run, all centered around Sullivan Lake. Everyone who finishes receives a commemorative medal.
A two day triathlon and endurance festival in Vancouver WA featuring sprint and Olympic triathlon formats, runs, aqua bike and paddle options, virtual events and a free kids triathlon at a riverside venue with mountain and lake views.
Join this all women multisport festival along the scenic Columbia River featuring a flat and fast course. Choose from triathlon, duathlon, or a 5k run with views of Mt. Hood and Mt. St. Helens.
Experience a scenic multisport event at Lake Meridian Park featuring Olympic Sprint and Super Sprint distances. Enjoy a spectator friendly atmosphere with individual and relay options followed by a meal and awards ceremony.
Experience a unique non competitive event in Kenmore featuring a swim, bike, run, and paddle. Join as a solo participant or a relay team to enjoy the scenic waterfront and local trails in this untimed community activity.
The Plutonium Man Triathlon in Richland offers Olympic and Sprint distances. Swimmers start in the Columbia River with a helpful downstream current. Relay team options are available for the Olympic course.
Experience a scenic triathlon in Sammamish featuring a lake swim, a 13.7 mile hilly bike course, and a 4.3 mile run through forested trails. Join as an individual or part of a relay team.
September 2026
Experience a scenic triathlon at Rattlesnake Lake featuring a fresh water swim, a 10 mile mixed surface bike ride, and a 4 mile trail run. Choose between individual entry or relay teams for this USAT sanctioned event.
Experience a fast downriver swim in the Columbia River and a rolling bike course through Washington wine country at this scenic late season triathlon in Richland.
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..