Washington
Washington Triathlon Calendar 2025-2026
Explore the best triathlons in Washington for 2025-2026! Our updated list features 19 exciting races across the region. Find your next race in Washington below and join the running community at these great events!
May 2025
The Rage in the Sage Duathlon is a multi-sport event taking place at Kiona Vineyards and Winery in Benton City, Washington. Participants will engage in a 2.5-mile cross-country run followed by a 10-mi..
The Cedar River Triathlon, taking place at Lake Wilderness in Maple Valley, WA, is a premier event in the 2025 triathlon season. Participants will engage in a 1/4 mile swim, a 14-mile off-road bike ri..
The Onion Man Triathlon is an annual event taking place in Walla Walla, Washington, designed to be accessible for both beginners and elite athletes. Scheduled for May 18, 2025, this grassroots triathl..
June 2025
The Three Lakes Triathlons and Kings Market San Juan Island Runs is an exciting all-sport weekend event set in the picturesque Lakedale Resort on San Juan Island, WA. Scheduled for June 14, 2025, the..
The Black Diamond Triathlon, scheduled for June 28, 2025, at Nolte State Park in Enumclaw, WA, offers a variety of events including Olympic, Sprint, AquaBike, Super Sprint, and relay options. Particip..
July 2025
The Seabeck Triathlon, taking place at Scenic Beach State Park in Seabeck, WA, is an exciting inaugural event scheduled for July 4th weekend in 2025. Participants will tackle a 1/4 mile swim in the pi..
The Lake Whatcom Triathlon, established in 2017, is a USAT-sanctioned event held in Bellingham, Washington. It features multiple race options, including an Olympic course with a 1500-meter swim, a 40k..
The Righteous Richland Sprint Triathlon is set to take place in Richland, Washington, featuring a challenging course that includes a 1/2 mile swim in the Columbia River, a 12-mile mountain bike ride,..
The Sullivan Lake Triathlon 2025 is set to take place in the scenic Sullivan Lake Recreational Area of the Colville National Forest, near Metaline Falls, Washington. This exciting event features a spr..
The Lake Wilderness Aquathon is a dynamic sports event scheduled for July 27, 2025, in Maple Valley, Washington. This exciting competition features multiple race formats, including a Sprint, Super Spr..
August 2025
The Lake Tye Triathlon, taking place on August 2, 2025, at Lake Tye Park in Monroe, WA, is a USAT sanctioned event suitable for participants of all skill levels, from beginners to elite athletes. The..
The Girlfriends Triathlon & Fitness Festival is an annual all-women's event held in Vancouver, WA, designed to celebrate fitness and camaraderie among women. Set against the scenic backdrop of the Col..
The Lake Meridian Triathlon is a popular event in the Pacific Northwest, scheduled for August 16, 2025. Participants can choose from various race formats, including Olympic, Sprint, Super Sprint, and..
The Beaver Lake Triathlon, scheduled for August 24, 2025, is an exciting multi-sport event held at Beaver Lake in Sammamish, WA. Participants will compete in a 1/4 mile swim, a 13.4 mile bike ride, an..
The Plutonium Man Triathlon, scheduled for August 30, 2025, in Richland, WA, offers participants a choice between Olympic and sprint distances, as well as relay team options for the Olympic event. The..
The Bonney Lake Triathlon + Duathlon & Aquabike is a premier multisport event held in Bonney Lake, Washington, featuring both Sprint and Olympic distance races. Set against the stunning backdrop of La..
The Rattlesnake Lake Triathlon, scheduled for August 31, 2025, takes place in the scenic Snoqualmie Valley, North Bend, Washington. This event features a quarter-mile swim in the brisk waters of Rattl..
September 2025
The Lake Stevens Triathlon + Duathlon & Aquabike is a premier multisport event taking place in Lake Stevens, Washington. Participants can choose between Sprint and Olympic distances, featuring a deep..
The IRONMAN 70.3 Washington Tri-Cities is a premier triathlon event set in the picturesque wine country of Richland, Washington. Athletes will experience a 1.2-mile downriver swim in the Columbia Rive..
