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 13 exciting races across the region. Find your next race in Washington below and join the running community at these great events!
September 2026
Four-leg multisport event in Port Angeles with mountain biking, kayaking, a 30 mile road bike, and a 10K run; solo Iron and team entries, all transitions at Pebble Beach Park.
A half Iron triathlon in Vantage, WA with a 1.2 mile swim, 56 mile bike and 13.1 mile run, plus relay and virtual entry options.
October 2026
A USAT duathlon at Soaring Eagle Trail head with a hilly 10 mile road bike and a 5 mile technical trail run, including a long sleeve technical shirt and finisher medal.
May 2027
Multi sport event in Vancouver, WA on May 1, 2027 offering duathlon formats and running distances from 5K to half marathon on a flat, fast course.
June 2027
Multi-discipline event on June 5, 2027 at Lake Wilderness Park offering Olympic and sprint triathlons, running races, relays and duathlon options with community donations.
Monthly updates for Washington
Get new running races (and updates) in your inbox every month.
USAT sanctioned half iron triathlon at Vantage Boat Launch with a 1.2 mile swim, 56 mile bike and 13.1 mile run, plus relay and virtual options.
A set of triathlon, duathlon, team relay, and 5K races at Waterfront Park in Medical Lake, WA, featuring an out-and-back open water swim and paved road and trail bike and run courses.
Seattle Solstice Run at Magnuson Park on June 19, 2027 offers 5k, 10k, 15k, a Kids Dash and a duathlon on a USATF certified 5k loop.
City-run, chip-timed triathlon at Lake Padden Park offering two distances with mapped bike and run routes, swim triangles, and clear race rules.
July 2027
A two-day triathlon and endurance sports festival in Vancouver, WA offering runs, sprint and Olympic triathlons, duathlons, aqua-bike, paddle races and a kids triathlon. Parking included.
An all women triathlon and fitness festival on July 11, 2027 at Frenchman's Bar Regional Park in Vancouver WA featuring sprint multisport races, relays and a 5k.
August 2027
Experience a multisport event in Sammamish featuring a lake swim, a scenic bike ride past Mount Si, and a flat run through forested trails.
September 2027
Experience a USAT sanctioned sprint triathlon in Bellevue featuring a swim in Lake Washington and a scenic bike ride along the EASTRAIL trail.