Beaver Lake Triathlon
Always double-check with the organizer's website! This page may contain affiliate links.
Beaver Lake Triathlon 2026
The Beaver Lake Triathlon takes place in Sammamish at Beaver Lake and uses lake, road, and neighborhood trails. The main event combines a short open-water swim, a road bike loop that includes a climb up Duthie Hill, and a run around Beaver Lake and nearby neighborhoods. Lifeguards are present for the swim. The bike course follows a lollipop route with views of the Cascade mountains and rural farm homes. The finish passes through forested sections near the lake.
Event options include relay teams, an aquathlon, a duathlon, and a youth Splash and Dash. All registrants must hold a USAT membership; one-day memberships are available. Packet pickup and a pasta feed are scheduled the day before at Redmond Town Center Flatstick Restaurant and Grill. Parking at the venue is free. Registered participants receive a full color long sleeve technical shirt and a finisher medallion.
Distances featured at the event:
- 1/4-mile swim
- 13.7-mile road bike
- 4.3-mile road run/trail
Additional entries include 2- and 3-person relays, an aquathlon (swim and run), a duathlon (bike and run), and a Kid's Splash and Dash for ages 7 to 15. Visit the organization's website for the most recent information.
