Brooks Lake Sammamish Half Marathon presented by REI
- Date
- March 6–7, 2027
- Distance
- Saturday Half Marathon · Virtual Half Marathon · Sunday Half Marathon
From the Organizer
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 every few miles (see course map).
The Lake Sammamish Half is cupless, so you either need to bring a handheld bottle, wear a hydration pack, or we can provide you with a re-useable cup at the start line.
VIRTUAL RACE INFO - We have 30 spots for virtual runners. Once they sell out there are no more available. You can run the distance all at once or break it up into chunks and run it on the date of your choosing. You will receive a shirt and medal that will be mailed after the in person race.
Check out all the details on our website.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
52°
Typical Low
38°
Chance of Rain
57%
Based on US Climate Normals data from Seattle Sand Pt Wsfo, 8 mi from the venue.
Host City
About Redmond, WA
Population
75,721
as of 2023
Elevation
145 ft
Nearest Airport
SEA
Seattle–Tacoma International Airport · 18 mi
Time Zone
Pacific Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Brooks Lake Sammamish Half Marathon presented by REI, put it on the calendar, and turn “someday” into a start date.
271
Days to train
- Race
- Brooks Lake Sammamish Half Marathon presented by REI
- Date
- March 6–7, 2027
Coming Up
More Running races near Redmond, WA
OUTLAST SEATTLE
5 miles away
Craft Classic Seattle
Less than a mile away
Kirk-Wood Half Marathon
Half Marathon
5 miles away
Seattle Torch Relay
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Brooks Lake Sammamish Half Marathon presented by REI?
- Brooks Lake Sammamish Half Marathon presented by REI is a running race held in Redmond, Washington on March 6, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Brooks Lake Sammamish Half Marathon presented by REI?
- Saturday, March 6, 2027 in Redmond, Washington at 15670 NE 85th St, Redmond, WA 98052, Redmond, WA. Check the event page for exact start times and wave schedules.
- How do I register for the Brooks Lake Sammamish Half Marathon presented by REI?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Brooks Lake Sammamish Half Marathon presented by REI
Mar 6, 2027