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Mudskipper US Sammamish Open Water Swim - Seattle

Sammamish, Washington, United States

calendar_today 26 Jul, 2026

directions_run Running

sell $75.25 – $100.33

About the Event

The Mudskipper Sammamish Open Water Swim invites aquatic enthusiasts to Lake Sammamish State Park for an exhilarating race just east of Seattle in Issaquah. Organized by Mudskipper Events, this annual competition offers a variety of distances: 1K, 3K, and 5K, all on a clearly marked course that loops around the lake's southern end at Sunset Beach.
Swimmers start en masse from the beach, diving into crystal-clear waters framed by lush greenery. The one-kilometer diamond-shaped route is ideal for those looking to test their speed over a shorter distance, while more seasoned swimmers can opt for multiple laps to reach 3K or even 5K.
Eco-friendly sponsor Sumarpo Wetsuits supports the event, promoting environmental responsibility and community spirit among participants. The race celebrates both competitive drive and camaraderie, making it an unmissable experience for open water enthusiasts.
The serene setting of Lake Sammamish provides a picturesque backdrop as swimmers navigate through calm waters under blue skies or gentle rain showers, enhancing the overall atmosphere with its natural beauty. Whether you're a seasoned swimmer or just starting out, this event offers a memorable day in the outdoors surrounded by like-minded individuals who share your passion for open water swimming.

Races Offered

1K Open Water Swim

Jul 26, 2026

straighten

Distance — 1K

terrain

Type — Running

timer

21 days remaining

sell

$75.25

3K Open Water Swim

Jul 26, 2026

straighten

Distance — 3K

terrain

Type — Running

timer

21 days remaining

sell

$90.07

5K Open Water Swim

Jul 26, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

21 days remaining

sell

$100.33

About Sammamish

Learn more about the host city, Sammamish.

Sammamish is a city in King County, Washington, United States. The population was 67,455 at the 2020 census. Located on a plateau, the city is bordered by Lake Sammamish to the west and the Snoqualmie Valley to the east. Sammamish is situated 20 miles east of Seattle, is a member of the Eastside, and is a part of the Seattle metropolitan area.