Lake Wilderness Triathlon and Run

JUN
5
2027
Triathlon, duathlon and running events at Lake Wilderness Park featuring lake swims, rolling bike routes and trails along the Cedar River.
Sat 5 Jun 2027
Sprint 0.25 13.76 5.5 mi Olympic 0.93 27.54 6.36 mi

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Lake Wilderness Triathlon and Run

Lake Wilderness Triathlon and Run takes place at Lake Wilderness Park in Maple Valley, Washington. The event offers multiple formats on the same day, including triathlons, relays, duathlons and running races. Registration fees listed for the event include $100 for standard triathlons and duathlons, $60 for relay teams, $70 for the 10K and $55 for the 5.5K.

Distances and formats include:

  • Olympic: Swim 0.93 miles, Bike 27.54 miles, Run 6.36 miles
  • Sprint: Swim 0.25 mile, Bike 13.76 miles, Run 5.5 miles
  • Sprint relay: Swim 0.25 mile, Bike 13.76 miles, Run 5.5 miles
  • Olympic relay: Swim 0.93 miles, Bike 27.54 miles, Run 6.36 miles
  • 10K: route along Cedar River trail and Lake Wilderness with aid every 2 miles
  • 5.5K: route along Cedar River trail and Lake Wilderness, a few rolling hills

Swims are held in Lake Wilderness with views of Mount Rainier. Bike courses run along rolling hills in Maple Valley and in some sections include Ravensdale. The run courses use the Lake Wilderness trail, a soft gravel path about 10 feet wide that follows the lake and the Cedar River. Packet pickup is available on race day; participants must present photo identification and packets may not be picked up for others. Visit the organization's website for the most recent information.

10 km
Lake Wilderness 10k
6 km
Lake Wilderness 5.5k
Lake Wilderness Sprint Triathlon
Lake Wilderness Olympic Triathlon
Lake Wilderness Duathlon Sprint
Lake Wilderness Duathlon Olympic

Events nearby

Two days of mountain running in North Bend, WA, featuring a vertical kilometer, a 30k championship with prize money, a 10k, a double option, and a full-day adventure expo.
A community Half Marathon and 5K at Lake Wilderness Park with chip timing, medals, gravel trails, and proceeds benefiting The More We Love.
A last-one-standing backyard ultra where each completed loop adds $100 to a shared prize jar and the final payout is split 75% to the winner and 25% to the runner-up.
Two-day mountain running festival in North Bend, WA featuring a vertical kilometer, the Skyline 30k championship with 6,500+ feet gain, a 10k, expo and family activities.
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