

Rattlesnake Lake Triathlon 2025
Sun, Aug 31
|King County Rattlesnake Lake Park
Join us Labor Day weekend 2025 for the Rattlesnake Lake Triathlon. 1/4 swim in clear mountain lake (~68 F), 10 mile bike 3 mile asphalt, 7 mile limestone trail/dirt, and 4 mile Run. Don't miss the excitement! Register today.


Time & Location
Aug 31, 2025, 8:00 AM – 12:00 PM PDT
King County Rattlesnake Lake Park, Snoqualmie Valley Trail, Washington 98045, USA
About the event
Race starts promptly at 8 am. Rattlesnake Lake North Bend WA (1/4 mile Swim, 10 mile off road bike, and 4 mile trail run. ***
More information at: SammamishRunning.com https://www.sammamishrunning.com/triHidden gem racing course in the heart of Washington is a beautiful lake and off-road biking trails, and perfect course for a late summer event. A great beginner’s triathlon. The quarter mile swim in brisk mountain snowmelt off the cascade mountains, followed by a 10 mile off road bike and a 4 mi run.
Rattlesnake Lake in beautiful North Bend Washington.
Tickets
Registration - Triathlon
Registrants receive pre-race pasta dinner (Aug 30, 2025, 4 pm), entrance to the Triathlon 1/4 mile swim, 10 mile off road bike, and 4 mile trail run. All entrants receive long sleeve technical mesh event t-shirt and all finishers receive Rattlesnake Lake Medallion.
$80.00
Total
$0.00

SAMMAMISH RUNNING
Exceeding Your Expectations
CONTACT US:
Sammamish Running is committed to exceeding your needs. Questions, comments or special requests? We’d love to hear from you, so don’t hesitate to reach out today.
Sammamish, WA, USA
708-668-5488
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