Half Marathons in Washington

Browse all 132 upcoming Half Marathons in Washington and compare all the nerdy details to find the best race for you.

Nerdy Details

Half Marathons in Washington: By The Numbers

For the runners who check their splits more than their email, here are the nerdy details about all Half Marathons in Washington in the USA including peak month, race distance popularity, number of races with open registration, and even price range and average entry free across Half Marathons in Washington.

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Races with registration open
September
Peak month by race count
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Most popular state for Half Marathons

Nerdrunner race data is updated daily. Prices may include sampled data for popular race categories. Popularity rank determined by race count.

Find Your Next Race

Browse All Upcoming Half Marathons in Washington

Browse all upcoming Half Marathons in Washington below. By default, races are sorted by soonest date. Feel free to narrow your search using race filters or searching by race name.

1 - 24 of 135 races found

Runner FAQs

Frequently Asked Questions About Half Marathons in Washington

How many Half Marathons in Washington are there?
There are currently 132 upcoming Half Marathons in Washington in our database. Race dates are scheduled from August through August 2027. Race data is updated daily.
When is the best time of year for running Half Marathons in Washington?
There is no bad month for a race, but September is the peak month for Half Marathons in Washington with 29 races on the calendar that month.
How many Half Marathons in Washington currently have open registration?
123 of the 132 upcoming Half Marathons in Washington in our database currently have open registration. Registration windows vary — some races open entries more than a year in advance, while others don’t open until a few weeks before race day.
How much do Half Marathons in Washington typically cost?
Entry fees for Half Marathons in Washington vary widely. The average entry fee is $60, though prices range from as low as $10 to as much as $183 depending on the race, location, swag, and when you register. Signing up early almost always gets you the best price. Note that our price estimates may include sampled data, especially for large datasets.

Most Popular Cities For Half Marathons Race Locations In Washington

Check out some of these other popular Half Marathons race locations that might be of interest to you:

Half Marathons in Washington

Half Marathons in Washington: By The Numbers

Browse All Upcoming Half Marathons in Washington

Run the Peninsula Series- Virtual Series – 5 Races

Race Through Washington 1M, 5K, 10K, 13.1, 26.2 – Now

Run Like a Viking Virtual Challenge 5K/10K/Half Marathon

Run for PB& J 5K/10K/13.1 SEATTLE

Bagel Run 5K/10K/13.1 SEATTLE

Ninja 5K, 10K & 13.1M at Everett, WA (33)

Twilight at the Bay

Ninja 5K, 10K, 13.1M at Pasco, WA (33)

Ninja 5K, 10K, 13.1M at Vancouver, WA (33)

Popsicle 5K/10K/Half – Portland (Washougal)

Ninja 5K, 10K, & 13.1M at Spokane, WA (34)

Ninja 5K, 10K, & 13.1M at Olympia, WA (34)

Ninja 5K, 10K, & 13.1M at Camas, WA (34)

2026 Kirk-Wood Half Marathon

Children of the Sun Half Marathon

Popsicle 5K/10K/Half – Richland

Tacoma Narrows Half Marathon / 10K / 5K

Sloth Run 5K/10K/13.1 SEATTLE

Run for Breast Cancer 5K/10K/13.1 SEATTLE

PeaceHealth Appletree Marathon

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (35)

2026 Backcountry Rise

Iron Horse Half Marathon

Medal Madness 5K, 10K, 13.1M & 26.2M at Everett, WA

Frequently Asked Questions About Half Marathons in Washington

How many Half Marathons in Washington are there?

When is the best time of year for running Half Marathons in Washington?

How many Half Marathons in Washington currently have open registration?

How much do Half Marathons in Washington typically cost?

Most Popular Cities For Half Marathons Race Locations In Washington

Everett

Olympia

Seattle