Beat the Blerch

5K / 10K / Half / Full Marathon


2019 TBD

Mmm cake.

Run a flat, beautiful course through the woods.

Eat lots of cake.

Avoid a sasquatch.


What is this?

Beat The Blerch is a 5K, 10K, half, and full marathon created by The Oatmeal and inspired by this comic about running.

Our Carnation, Washington race will take place in a quaint little town located about 35 minutes outside of Seattle. Here’s a map.

It begins at King County’s Tolt MacDonald Park, and it’s a beautiful flat, out-and-back course that winds its way through evergreen, mossy forests along the Snoqualmie valley trail. Near the starting line of the race are strawberry farms and pumpkin patches, which offer guided tours in case you’re still up for a bit of walking after the race.

The Shirt

Race Highlights

  • Run a flat course in the woods
  • Cake at every aid station
  • All race photos are free
  • Couches along the course
    ( in case you need a nap )
  • Matthew Inman, aka The Oatmeal will be in attendance
    ( running, eating, and drawing pictures )
  • There will be blerches in fat-suits
    who will probably chase you
  • You get a goodie bag
    full of surprises
  • You get a super attractive, not-at-all-ugly running shirt!
    ( 5K runners do not receive a shirt )


2019 TBD


2019 TBD


Race Details

Beat the Blerch Seattle

2019 TBD

5K / 10K / Half / Full Marathon

Event Location and Date

King County’s Tolt MacDonald Park
31020 NE 40th Street
Carnation, WA

The race starts and finishes at Tolt McDonald Park, located at 31023 NE 40th St, Carnation WA 98014.  Please do not drive to the park, unless you purchased a parking pass.  More info on parking passes below.

The Course

It begins at King County’s Tolt MacDonald Park, and it’s a beautiful flat, out-and-back gravel trail that winds its way through evergreen, mossy forests along the Snoqualmie valley trail. Please note that for both the half marathon and the 10K, participants will start in waves of about 150 to 200 people, spaced approximately 2-3 minutes apart.


Half Marathon$80
Full Marathon (Saturday only)$110

Race Communication

Pre-race emails will be sent out to all participants twice.

Packet pick-up

Road Runner Sports
7020 Woodlawn Ave NE
Seattle, WA 98115


If you did not buy a parking pass, please use one of the many free parking options outside of Tolt-McDonald Park.  The closest and largest free parking location is the Carnation off-leash dog park.  Click here to view a map of available parking locations.  Please note that you cannot come into the park without a parking pass, even to drop off runners.

Parking Pass

If you bought a parking pass when you registered, you will receive it via email one week prior to the race. You will need to print it out and place it clearly on the day of the race.

Gear Check

There is a free gear check for all participants to use.  To use the gear check, you must provide your own bag.  Beat the Blerch is not responsible for any lost, missing or stolen items.

Aid Stations

They will be stocked with water, energy bars or gels, magical flavored beverage, Nutella sandwiches, and birthday cake.  10K runners will hit the aid station once at mile 3.  Half marathon runners will hit aid stations at mile 3, 6, 7.2, and 10.1.  Marathon participants will hit the aid stations at mile 1.5, 4.3, 7.5, 10.3, 12, 15, 18, 20 and 23.


Looking for a place to stay? Here is a list of accommodations in Carnation, close to the race. If you're looking to stay closer to Seattle, we recommend staying in Issaquah or Redmond.

Race Day Schedule

  • Packet Pickup: 7:30am to 8:50am
  • Marathon Start: 8:15am
  • Half Marathon Start: 9:30am
  • 10K Start: 10:00am
  • 5k Start: 10:15am
  • Race Course Closes: 3:15pm


We need your help!  Many people choose to volunteer one day and run on the other day of this fun-filled weekend.  Many volunteer positions are available, including:

  • Pre-Race Packet Pickup
  • Aid Stations
  • Parking
  • Race Day Packet Pickup
  • Course Monitor
  • Finish Line
  • Post Race Food
  • General All Around Awesome Volunteers!

Click here to register as a volunteer.

You’ll receive…a custom Beat The Blerch shirt, race day all the cake you can eat and numerous high-fives!