Half Marathons in Seattle, Washington

There are 34 half marathons in Seattle, Washington in 2026. The next is the Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE on October 31.

Running Scared 5K/13K - Seattle

Sun, Oct 18 · Seattle, WA Seattle

Virtual Scaredy Cat 5K-No SwagScaredy Cat 5KVirtual Scaredy Cat 5K +5

From $30 Open Closing Soon

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Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE

Sat, Oct 31 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open Closing Soon

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

Sat, Oct 31 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open Closing Soon

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Run for Mental Health 5K/10K/13.1 SEATTLE

Sat, Nov 14 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Veterans Day Freedom Run 5K/10K/13.1 SEATTLE

Sat, Nov 14 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Thanksgiving Gobble Trot Run 5K/10K/13.1 SEATTLE

Sat, Nov 28 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Coffee Lovers Run 5K/10K/13.1 SEATTLE

Sat, Nov 28 · Seattle, WA Seattle

Virtual Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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Sunrise Marathon 5K/10K/13.1 SEATTLE

Sat, Dec 12 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1) +3

From $30 Open

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

Sat, Dec 12 · Seattle, WA Seattle

Virtual Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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2026 Jingle Bell Run - Seattle, WA

Sun, Dec 13 · Seattle, WA Seattle

Virtual 1 Mile with Packet Shipping1 Mile5K Timed with Packet Shipping +11

From $25 Open Closing Soon

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Holiday fun Run

Sat, Dec 19 · Seattle, WA Seattle

Road 5k10k15k +1

From $6 Open

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New Year's Run 5K/10K/13.1 SEATTLE

Sat, Dec 26 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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A Merry Christmas Run 5K/10K/13.1 SEATTLE

Sat, Dec 26 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration +3

From $30 Open

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Sunrise Marathon 5K/10K/13.1 SEATTLE

Sat, Jan 16 · Seattle, WA Seattle

Virtual Family 1 Mile Fun RunVirtual Run Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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MLK Jr. Freedom Run 5K/10K/13.1 SEATTLE

Sat, Jan 16 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Run for Donut SEATTLE

Sat, Jan 30 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Coffee Lover Run SEATTLE

Sat, Jan 30 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Run for Chocolate 5K/10K/13.1 SEATTLE

Sat, Feb 13 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Valentine's Day Run 5K/10K/13.1 SEATTLE

Sat, Feb 13 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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My Better Half Marathon

Sun, Feb 14 · Seattle, WA Seattle

Road My Better Half 5KMy Better Half 10KMy Better Half Marathon Relay (2 people must register together) +1

From $45 Open Closing Soon

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Run Together Against Breast Cancer SEATTLE

Sat, Feb 27 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Run For Mental Health SEATTLE

Sat, Feb 27 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Winter Fun Run

Sat, Feb 27 · Seattle, WA Seattle

Road 5k10k15k +1

From $6 Open

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St. Paddy's Day Lucky Run 5K/10K/13.1 SEATTLE

Sat, Mar 20 · Seattle, WA Seattle

Virtual Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Sunrise Marathon 5K/10K/13.1 SEATTLE

Sat, Mar 20 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Always Hope Easter Run SEATTLE

Sat, Mar 27 · Seattle, WA Seattle

Virtual Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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SuperHeroes Run SEATTLE

Sat, Mar 27 · Seattle, WA Seattle

Virtual Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Sloth Run 5K/10K/13.1 SEATTLE

Sat, Apr 10 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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

Sat, Apr 10 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Run for Donut SEATTLE

Sat, Apr 24 · Seattle, WA Seattle

Virtual Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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Coffee Lover Run SEATTLE

Sat, Apr 24 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Run for Chocolate 5k/10k/13.1 SEATTLE

Sat, May 8 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration +3

From $30 Open

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SuperHeroes Run SEATTLE

Sat, May 29 · Seattle, WA Seattle

Virtual Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Run Juneteenth Day 5K/10K/13.1 SEATTLE

Sat, Jun 19 · Seattle, WA Seattle

Virtual Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K Registration +3

From $30 Open

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The Brooks Orca Half Marathon presented by REI

Sat, Sep 18 · Seattle, WA Seattle

Virtual Orca 8-Miler (Sunday)Orca 8-Miler (Sunday)Orca Half Marathon Saturday +7

From $60 Open Closing Soon 50 spots left

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