Washington · Half Marathon
Lake Sammamish Half Marathon
Lake Sammamish Half Marathon is a half marathon event held in Redmond, Washington. Its next confirmed date is Saturday, March 6, 2027. About 2,500 runners take part across all distances.
- Race day
- March 6, 2027
- Location
- Redmond, WA
- Field size
- ~2,500 runners
Race details
- Date
- Saturday, March 6, 2027
- Location
- Redmond, Washington
- Distances
- Half Marathon
- Field size
- About 2,500 runners
- Course
- Flat / low
- Registration
- runsignup.com
- Official website
- lakesammamishhalf.com
Registration, course & weather
- Registration status
- Open
- Start time
- 7:30 AM PST
- Course profile
- Point-to-point course; Road surface; 70 ft gain (official course data); USATF certified
About the Lake Sammamish Half Marathon
The Brooks Lake Sammamish Half Marathon presented by REI is a point to point race from Redmond to Sammamish. You will run along the East Lake Sammamish Trail that is fully paved. We also offer a half-marathon walk category with a generous 4 hour time limit. This flat run is perfect for a half-marathon personal best whether you’re running or walking! The race is chip-timed, and each participant will receive a chip-timed bib, participant shirt, and a finisher medal. Aid stations are provided ever…
Rankings and notes
- Rankings and awards
- PR-friendly course
- Notes
- Large Seattle-area half marathon.
More half marathons in Washington
Coming up next, by confirmed date.
More races in Redmond
More upcoming races in Washington
Keep exploring
- All races in Washington
- 5Ks in Washington 155 upcoming races
- 10Ks in Washington 97 upcoming races
- Half Marathons in Washington 49 upcoming races
- Marathons in Washington 24 upcoming races
- Half Marathons in the United States 1,668 upcoming races
- Spring Half Marathons
- March Half Marathons
- March races in Washington
- Half Marathons in Oregon 26 upcoming races
- Half Marathons in Idaho 25 upcoming races
- Half Marathons in California 190 upcoming races
- Half Marathons in Colorado 51 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Lake Sammamish Half Marathon: common questions
- When is the Lake Sammamish Half Marathon?
- The next confirmed date is Saturday, March 6, 2027.
- Where is the Lake Sammamish Half Marathon held?
- In Redmond, Washington.
- What distances does the Lake Sammamish Half Marathon offer?
- Half Marathon.
- How many people run the Lake Sammamish Half Marathon?
- About 2,500 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Lake Sammamish Half Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Lake Sammamish Half Marathon?
- Yes — registration is open. $91 (from orcarunning.com, checked October 7, 2026).
- What time does the Lake Sammamish Half Marathon start?
- 7:30 AM PST.
- What is the course like at the Lake Sammamish Half Marathon?
- Point-to-point course; Road surface; 70 ft gain (official course data); USATF certified.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.