Lake Wilderness Triathlon
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Lake Wilderness Triathlon : event overview
The Lake Wilderness Triathlon takes place at Lake Wilderness Park, 22500 SE 248th St, Maple Valley, on June 6th, 2026. The event marks the 21st year of this multi-discipline competition and includes swim, bike and run segments as primary disciplines.
Event formats listed include an Olympic triathlon, a sprint triathlon, a duathlon, relay team entries, and running races. Running distances offered include a half marathon, 10K, and 5K. Registration pricing is subject to increases on April 26 and May 24.
Sponsors for the event include Ascend Dental. Charitable contributions from the event include donations of $5,000 to Backpack Buddies, $5,000 to Seattle Children’s Hospital, and collections of stuffed animals provided to local police and fire departments.
Event materials and planning support include a published schedule, course information, and a race day walk-through. The organizing entity reserves the right to refuse any participant entry.
This description is based on event materials and lists the principal formats, location, notable sponsorship and charitable beneficiaries, and administrative notes about registration and participant eligibility. Visit the organization's website for the most recent information.
