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/tri

Hidden 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.

All entrants receive custom designed Rattlesnake Lake Triathlon T-Shirt, coaster, and gel pack. All finishers receive authentic Rattlesnake Lake Triathlon Medallion. The event is sanctioned by the USAT. Sign up at least  2 weeks before race and guarantee T-shirt and size.

Pre-Race Safety Briefing: Thursday August 28, 2025, 5 pm Live Stream

Packet pick at the Race Site Saturday August 30, 2024, 4 pm to 5:30 pm.

Event details and schedule

Race starts promptly at 8 am. Parking at the Rattlesnake Lake parking lot is FREE. Parking at the State Parking lot requires a Discovery pass.

For updated information on the Rattlesnake Lake Triathlon see SammamishRunning.com

1/4 mile swim, 10 mile off road bike, and 4 mile trail run. Event is chip time. You will receive a time for your swim, bike and run as well as transition times for your swim-bike and bike-Run.

Kid's Splash 'n Dash starts at 8:30 am.

Further questions, please reach out to Race Director Mic Brisbois at 708.668.5488 call or text. mic@beaverLakeTriathlon.com