Upcoming Half Marathon Races In Washington, US

Name: Spring - Mud Mountain Dam Marathon & Half Marathon
Start: 2026-05-30
End: 2026-05-30
Location: Enumclaw

Viking 5K, 10K, & Half Marathon at Heritage Par...

Olympia, WA

Saturday, February 28th, 2026

Featured

10K

Half

View details for race Viking 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (09) 80

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Rock Solid Marathon, Half Marathon

Coupeville, WA

Saturday, February 28th, 2026

Marathon

Half

View details for race Rock Solid Marathon, Half Marathon

Medal Madness 5K, 10K, 13.1M, & 26.2M at Everet...

Everett, WA

Saturday, March 7th, 2026

10K

Half

View details for race Medal Madness 5K, 10K, 13.1M, & 26.2M at Everett, WA (10)

Lake Sammamish Half Marathon

Redmond, WA

Saturday, March 7th, 2026

Half

Trail

View details for race Lake Sammamish Half Marathon

Medal Madness 5K, 10K, & Half Marathon at Herit...

Olympia, WA

Saturday, March 14th, 2026

10K

Half

View details for race Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (11) 80

Run The Green

Kent, WA

Saturday, March 14th, 2026

Half

10K

Trail

Fast

View details for race Run The Green

St. Paddy's Day Run Tacoma

Tacoma, WA

Saturday, March 14th, 2026

Half

10K

View details for race St. Paddy's Day Run Tacoma

Medal Madness 5K, 10K, & 13.1M at Everett, WA (11)

Everett, WA

Saturday, March 14th, 2026

10K

Half

View details for race Medal Madness 5K, 10K, & 13.1M at Everett, WA (11)

Shamrock Shuffle

Spokane, WA

Sunday, March 15th, 2026

Half

10K

View details for race Shamrock Shuffle

Medal Madness 5K, 10K, 13.1, & 26.2 at Pasco, W...

Pasco, WA

Saturday, March 21st, 2026

10K

Half

View details for race Medal Madness 5K, 10K, 13.1, & 26.2 at Pasco, WA (12)

Medal Madness 5K, 10K, 13.1 & 26.2 at Lowell R...

Everett, WA

Saturday, March 21st, 2026

10K

Half

View details for race Medal Madness 5K, 10K, 13.1 & 26.2 at Lowell Riverfront Park, Everett, WA (12) 80

Dash Point Trail Run

Federal Way, WA

Saturday, March 21st, 2026

10K

Half

Trail

View details for race Dash Point Trail Run

Medal Madness 5K, 10K, & Half Marathon at Liber...

Spokane, WA

Saturday, March 28th, 2026

10K

Half

Trail

View details for race Medal Madness 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (13) 40

Medal Madness 5K, 10K, & 13.1M at Camas, WA (13)

Camas, WA

Saturday, March 28th, 2026

10K

Half

View details for race Medal Madness 5K, 10K, & 13.1M at Camas, WA (13)

Medal Madness 5K, 10K, & 13.1M at Olympia, WA (13)

Olympia, WA

Saturday, March 28th, 2026

10K

Half

View details for race Medal Madness 5K, 10K, & 13.1M at Olympia, WA (13)

Whitehorse Half Marathon

Arlington, WA

Saturday, March 28th, 2026

Half

View details for race Whitehorse Half Marathon

Yakima River Canyon Marathon and Half-Marathon

Yakima, WA

Saturday, March 28th, 2026

Half

Marathon

View details for race Yakima River Canyon Marathon and Half-Marathon

Pirate 1M, 5K, 10K, 15K, & Half Marathon at Her...

Olympia, WA

Saturday, April 11th, 2026

1 Mile

10K

View details for race Pirate 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (15) 150

The Split

Spokane, WA

Sunday, April 12th, 2026

Half

10K

View details for race The Split

Run the River

Kennewick, WA

Friday, April 17th, 2026

Marathon

Half

Fast

View details for race Run the River

Seattle Cherry Blossom Run

Seattle, WA

Saturday, April 18th, 2026

10K

Half

View details for race Seattle Cherry Blossom Run

Earth Day Run

Seattle, WA

Saturday, April 18th, 2026

10K

15K

View details for race Earth Day Run

Squak Mountain Trail Run

Issaquah, WA

Saturday, April 18th, 2026

12K

Half

Ultra

Trail

View details for race Squak Mountain Trail Run

Whidbey Island Marathon

Oak Harbor, WA

Sunday, April 26th, 2026

Marathon

Half

10K

View details for race Whidbey Island Marathon

Spring Classic Duathlon, Half, 10k & 5k

Vancouver, WA

Sunday, April 26th, 2026

Half

Fast

View details for race Spring Classic Duathlon, Half, 10k & 5k

Tacoma City Marathon / Half / Ghost / 5K / 10K

Tacoma, WA

Saturday, May 2nd, 2026

Marathon

Half

10K

Fast

View details for race Tacoma City Marathon / Half / Ghost / 5K / 10K

Never Say Never Half Marathon & 10K

Tieton, WA

Saturday, May 2nd, 2026

Half

10K

View details for race Never Say Never Half Marathon & 10K

Luau 5K, 10K, & Half Marathon at Langus Riverfr...

Everett, WA

Saturday, May 2nd, 2026

10K

Half

View details for race Luau 5K, 10K, & Half Marathon at Langus Riverfront Park, Everett, WA (18) 80

Kirkland Half Marathon & 5K

Kirkland, WA

Sunday, May 3rd, 2026

Half

View details for race Kirkland Half Marathon & 5K

San Juan Island Half

Friday Harbor, WA

Saturday, May 9th, 2026

Half

View details for race San Juan Island Half

Snohomish Women's Run

Everett, WA

Saturday, May 9th, 2026

Half

10K

Fast

View details for race Snohomish Women's Run

Capital City Marathon

Olympia, WA

Saturday, May 16th, 2026

Marathon

Half

1 Mile

View details for race Capital City Marathon

Soaring Eagle Trail Run

Sammamish, WA

Saturday, May 16th, 2026

Half

10K

View details for race Soaring Eagle Trail Run

Reflection Run

Washougal, WA

Sunday, May 17th, 2026

Half

10K

Trail

View details for race Reflection Run

Windermere Marathon

Spokane, WA

Sunday, May 17th, 2026

Marathon

Half

10K

Trail

View details for race Windermere Marathon

Spring - Mud Mountain Dam Marathon & Half Marathon

Enumclaw, WA

Saturday, May 30th, 2026

Marathon

Half

View details for race Spring - Mud Mountain Dam Marathon & Half Marathon

Explore more in Washington, US

Distances:

5K 10K Half Marathon Marathon

Months:

February March April

Tags:

Trail Boston Qualifiers Fast Courses

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