Half Marathons in Washington — 2026

There are 99 half marathons in Washington scheduled for 2026. The next is the Medal Madness 5K, 10K, 13.1M & 26.2M at Everett, WA (36) in Everett on September 5. Washington half marathons run primarily September through August.

Medal Madness 5K, 10K, 13.1M & 26.2M at Everett, WA (36)

Sat, Sep 5 · Everett, WA Everett

5K10KHalf Marathon +1

From $30 Open Closing Soon

Register →

BRRC Cross Country Series

Sun, Sep 6 · Spokane, WA Spokane

BRRC 7-Mile Airstrip 5K Cross CountryBRRC Audubon 5K Cross CountryBRRC Mead 5K Cross Country +1

From $20 Open Closing Soon

Register →

Redmond Harvest Half Marathon

Mon, Sep 7 · Redmond, WA Redmond

Half Marathon

From $59 Open Closing Soon

Register →

Medal Madness 5K, 10K & 13.1M at Camas, WA (37)

Sat, Sep 12 · Camas, WA Camas

5K10K13.1M

From $30 Open Closing Soon

Register →

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SEATTLE

Sat, Sep 12 · Seattle, WA Seattle

Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open Closing Soon

Register →

OVERCOMER 5K & 13.1 Mile Half Marathon

Sat, Sep 12 · Pasco, WA Pasco

OVERCOMER 5KOVERCOMER 13.1 Mile Half Marathon

From $35 Open Closing Soon

Register →

March for the Fallen 2026

Sat, Sep 12 · Nine Mile Falls, WA Nine Mile Falls

5k Ruck (35lb pack minimum weight for competitive ruck)5k Run or Walk10k Ruck (35lb pack minimum weight for competitive ruck) +4

From $30 Open Closing Soon

Register →

Medal Madness 5K, 10K, & 13.1M at Everett, WA (37)

Sat, Sep 12 · Everett, WA Everett

5K10KHalf Marathon

From $30 Open Closing Soon

Register →

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

Sat, Sep 12 · Seattle, WA Seattle

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

From $30 Open Closing Soon

Register →

Medal Madness 5K, 10K, & 13.1M at Olympia, WA (37)

Sat, Sep 12 · Olympia, WA Olympia

5K10KHalf Marathon

From $30 Open Closing Soon

Register →

RUN THE DAM 2026

Sat, Sep 19 · Grand Coulee, WA Grand Coulee

5K10K1/2 MARATHON

From $25 Open

Register →

Anacortes Half Marathon & 5k

Sat, Sep 19 · Anacortes, WA Anacortes

The Anacortes 5kThe Anacortes Half Marathon

From $32 Open Closing Soon

Register →

Medal Madness 5K, 10K, 13.1M at Pasco, WA (38)

Sat, Sep 19 · Pasco, WA Pasco

5K10KHalf Marathon

From $30 Open

Register →

The Brooks Orca Half Marathon presented by REI

Sat, Sep 19 · Seattle, WA Seattle

Orca 8-Miler (Sunday)Blowhole ChallengeOrca Half Marathon Saturday +2

From $60 Open 50 spots left

Register →

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (38)

Sat, Sep 19 · Vancouver, WA Vancouver

5K10K13.1M

From $30 Open

Register →

Medal Madness 5K, 10K & 13.1M at Everett, WA (38)

Sat, Sep 19 · Everett, WA Everett

5K10KHalf Marathon

From $30 Open

Register →

Quilcene Oyster Races

Sun, Sep 20 · Quilcene, WA Quilcene

Duo 5K Run/Walk5K Run/WalkDuo 10K Run/Walk +3

From $25 Open

Register →

Oktoberfest Run 5K/10K/13.1 SEATTLE

Sat, Sep 26 · Seattle, WA Seattle

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

From $30 Open

Register →

Medal Madness 5K, 10K & 13.1M at Camas, WA (39)

Sat, Sep 26 · Camas, WA Camas

5K10K13.1M

From $30 Open

Register →

Colbert Autumn Classic Half Marathon & 4-Mile Loop

Sat, Sep 26 · Colbert, WA Colbert

Colbert 4-Mile LoopBRRC 49th Colbert Autumn Classic Half Marathon EARLY STARTBRRC 49th Colbert Autumn Classic Half Marathon

From $25 Open Closing Soon

Register →

Run for Donuts 5K/10K/13.1 SEATTLE

Sat, Sep 26 · Seattle, WA Seattle

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

From $30 Open

Register →

Medal Madness 5K, 10K, & 13.1M at Spokane, WA (39)

Sat, Sep 26 · Spokane, WA Spokane

5K10KHalf Marathon

From $30 Open

Register →

Puyallup Valley Half Marathon and 10K

Sun, Sep 27 · Puyallup, WA Puyallup

10KHalf Marathon

From $40 Open

Register →

Falla Walla Half Marathon, 10K & Heroes 5K Run

Sat, Oct 3 · Walla Walla, WA Walla Walla

Heroes 5k Run10KHalf Marathon

From $40 Open Closing Soon

Register →

Haunted 5K, 10K, 13.1M & 26.2M at Everett, WA (40)

Sat, Oct 3 · Everett, WA Everett

5K10KHalf Marathon +1

From $30 Closed

Register →

Run for the Gnomes Half Marathon & 5K

Sat, Oct 3 · Maple Valley, WA Maple Valley

Run for the Gnomes 5KRun for the Gnomes Half Marathon

From $32 Open

Register →

Poulsbo Half Marathon & 10k

Sun, Oct 4 · Poulsbo, WA Poulsbo

10kHalf Marathon

From $38 Open

Register →

Haunted 5K, 10K, & 13.1M at Everett WA (41)

Sat, Oct 10 · Everett, WA Everett

5K10KHalf Marathon

From $30 Open

Register →

Running Scared 5K/13K - Portland (Washougal)

Sat, Oct 10 · Washougal, WA Washougal

Virtual Scaredy Cat 5KScaredy Cat 5KVirtual Heart Pounding 13K +3

From $25 Open

Register →

Bagel Run 5K/10K/13.1 SEATTLE

Sat, Oct 10 · Seattle, WA Seattle

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

From $30 Open

Register →

Coffee Lovers Run 5K/10K/13.1 SEATTLE

Sat, Oct 10 · Seattle, WA Seattle

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

From $30 Open

Register →

Haunted 5K, 10K & 13.1M at Camas, WA (41)

Sat, Oct 10 · Camas, WA Camas

5K10K13.1M

From $30 Open

Register →

Haunted 5K, 10K & 13.1M at Olympia, WA (41)

Sat, Oct 10 · Olympia, WA Olympia

5K10KHalf Marathon

From $30 Open

Register →

Sun City Barry James Memorial 5K and Half Marathon

Sun, Oct 11 · Yakima, WA Yakima

Sun City Barry James Memorial 5K Non HCR MemberSun City Barry James Memorial 5K HCR MemberSun City Barry James Memorial Half Marathon Walk HCR Member +3

From $15 Open

Register →

Lake Washington Half Marathon

Sat, Oct 17 · Kirkland, WA Kirkland

Half MarathonVirtual Half Marathon

From $52 Open

Register →

Haunted 5K, 10K, & 13.1M at Pasco, WA (42)

Sat, Oct 17 · Pasco, WA Pasco

5K10KHalf Marathon

From $30 Open

Register →

The Salty Half and 10K too!

Sat, Oct 17 · Seattle, WA Seattle

10KHalf Marathon

From $39 Open

Register →

Haunted 5K, 10K & 13.1M at Everett, WA (42)

Sat, Oct 17 · Everett, WA Everett

5K10KHalf Marathon

From $30 Open

Register →

Haunted 5K, 10K, 13.1M at Vancouver, WA (42)

Sat, Oct 17 · Vancouver, WA Vancouver

5K10K13.1M

From $30 Open

Register →

Running Scared 5K/13K - Seattle

Sun, Oct 18 · Seattle, WA Seattle

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

From $30 Open

Register →

Girlfriends Run

Sun, Oct 18 · Vancouver, WA Vancouver

6K Glam Gal6K Pink Brigade Guy6K Walk +10

From $0 Open

Register →

Haunted 5K, 10K, & 13.1M at Olympia, WA (43)

Sat, Oct 24 · Olympia, WA Olympia

5K10KHalf Marathon

From $30 Open

Register →

Haunted 5K, 10K & 13.1M at Camas, WA (43)

Sat, Oct 24 · Camas, WA Camas

5K10K13.1M

From $30 Open

Register →

Haunted 5K, 10K, & 13.1M at Spokane, WA (43)

Sat, Oct 24 · Spokane, WA Spokane

5K10KHalf Marathon

From $30 Open

Register →

Captain Jack's Treasure Run

Sun, Oct 25 · Redmond, WA Redmond

5K8K12K +1

From $10 Open 68 spots left

Register →

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (44)

Sat, Oct 31 · Vancouver, WA Vancouver

5K10K13.1M

From $30 Open

Register →

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

Sat, Oct 31 · Seattle, WA Seattle

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

From $30 Open

Register →

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

Sat, Oct 31 · Seattle, WA Seattle

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

From $30 Open

Register →

Gobbler 5K, 10K, & 13.1M at Everett, WA (45)

Sat, Nov 7 · Everett, WA Everett

5K10KHalf Marathon

From $30 Open

Register →

Run the Bay

Sun, Nov 8 · University Place, WA University Place

Run the Bay 5kRun the Bay 10kRun The Bay Half Marathon

From $33 Open

Register →