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Registration is open!

Due to insurance and permit restrictions, the race has a strict no transfer, no refund policy.

2020 Fee Schedule

Prices do not include processing fees. Online pre-registration closes March 4 at 8:00pm.

  • Open – October 31: $64
  • November 1-30: $69
  • December 1-31: $74
  • January 1-31: $79
  • February 1-March 4 @ 8pm: $84
  • at Packet Pickup or race day (if not sold out): $100

2020 Half Marathon Double Pack!

Get a 10% discount when you sign up for both the 2020 Lake Washington Half and the 2020 Lake Sammamish Half! Double Pack registration is open!


This race couldn’t happen without the support of many dedicated volunteers. If you would like to volunteer at the race, please Contact Us.

This race is sanctioned by USA Track & Field.

Personalized Race Bibs

Register by February 20 and select the name that appears on your race bib. Use a nickname, your child’s name, or your dog’s name!





The Lake Sammamish Half Marathon is now a USATF-certified course (WA19027RMB)!



Check out the course.


Aid Stations

  • Aid #1 (mile 2.1)
  • Aid #2 (mile 4.7
  • Aid #3 (mile 7.1)
  • Aid #4 (mile 9.1)
  • Aid #5 (mile 11.3)


Pacers will be available to help you reach your race goal. Just find the pacer with the sign that matches your target finishing time and stick with them. Many thanks to the Seattle Green Lake Running Group, who will provide pacers for the race.

Pace Groups – target finishing times

1:30 • 1:40 • 1:50 • 2:00 • 2:15 • 2:30


6:00a – Race day packet pickup begins
7:00a – Race day packet pickup closes
7:15a – Pre-race announcements
7:30a – Start
10:00a – (approximate) awards
11:30a – Course closes

Gear Check

We will have gear transfer available at the start. In an effort to reduce waste, we will not be providing drop bags, so PLEASE BRING YOUR OWN BAG. We will have identification tags for you to use. Drop bags will be available to pick up at the race finish at Lake Sammamish State Park.


There is plenty of parking at Redmond Town Center. Please arrive early enough to find a spot, pick up your race packet, and get ready to start.

Finish Line Parking

Your friends and family are welcome to park at Lake Sammamish State Park to watch you cross the finish line. However, because it’s a state park, every vehicle is required to display a Discover Pass (good at all state parks and other state lands). You can purchase a pass in advance online or at the park’s automated pay station. Both one-day and annual passes are available.

Pre-race Packet Pickup

We’ll have two pre-race packet pickup opportunities.

Thursday, March 5

2pm-7pm – Green Lake Road Runner Sports (7020 Woodlawn Ave NE, Seattle WA 98115)

Friday, March 6

12pm-7pm – Bellevue Road Runner Sports (12200 Northup Way, Bellevue WA 98005)

Parking at Road Runner Bellevue

Parking at Road Runner Bellevue is very limited. Please carpool or use public transportation if possible. There is also some additional parking just east of Road Runner (see map). Please do NOT park in any other lots.











Required Documents

You will need photo ID in order to pick up your packet (both at pre-race pickup and on race day).

You can have someone else pick up your packet for you if they have:

  • a copy of your photo id: either hard copy or on phone
  • written authorization from you


In an effort to help our local communities reduce waste, we’ve decided to forego plastic bags and instead provide “virtual” swag. You’ll still be getting great discounts on other local races, as well as discounts from our great sponsors. But instead of handing out printed flyers in plastic bags, we’ll be sending a special email to all registrants with links to discounts on race gear and race entries. The best part: no plastic bags to throw away!

Registration Confirmation

If you’d like to verify that you’re registered, please check the confirmation list.

Race Day Pickup

You may also pick up your packet on race day. If you choose this option, please allow plenty of time for transportation and parking. We strongly encourage you to pick up your packet ahead of time if you can.  back to top

Event Swag

All registered racers receive a long-sleeved half-zip shirt (2020 design shown). Sign up by February 19 to guarantee you get your size!







Note: the charts provided are only guidelines – every individual has different proportions and these standardized charts will not guarantee a perfect fit. If you are on the borderline between two sizes, base your selection on whether or not you prefer a looser fit (size up) or closer fit, and the product style.











Finisher medal

All finishers will receive a medal.

Overall awards

Overall race top finishers are recognized 3 deep in both female and male divisions.

Top Finisher Awards

Overall race top finishers are recognized 3 deep in both female and male divisions.

Age Group Awards

Age group awards will be given 3 deep (1st, 2nd, 3rd) in each age division. The age divisions are 0-19, 20-29, 30-39, 40-49, 50-59 and 60-69 and 70+ for each gender.  back to top