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Half Marathons Near Seattle
Showing the next 50 runs that match your filters
Featured
Lake Union 10K
Get $10 Off - Use Code RunGuides26
Date: Aug 9, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Seattle, Washington
Featured
The Cascade Express Marathon & Half Marathon
Get 10% Off - Use Code RG10
Date: Sep 12, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: North Bend, Washington
Race the Reserve
Date: Aug 8, 2026 - Saturday
Size: 100 - 500 participants
Location: Coupeville, Washington
Tunnel Vision Marathon and Half-Marathon
Date: Aug 9, 2026 - Sunday
Size: 500 - 1,000 participants
Location: North Bend, Washington
Twilight at the Bay
Get 10% Off - Use Code RG10
Date: Aug 15, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Steilacoom, Washington
Are you organizing a running event?
Run for PB&J 5K/10K/13.1 - Seattle
Date: Aug 15, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Kirk-Wood Half Marathon
Get 15% Off - Use Code RUNGUIDE15
Date: Aug 22, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Kirkland, Washington
Backcountry Rise
Date: Aug 29-Sep 7, 2026 - Saturday to Monday
Size: 100 - 500 participants
Location: Toutle, Washington
Tacoma Narrows Half Marathon & 5K
Get 10% Off - Use Code runguides
Date: Aug 29, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Tacoma, Washington
Sloth Run 5K/10K/13.1 - Seattle
Date: Aug 29, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Iron Horse Half
Date: Aug 30, 2026 - Sunday
Size: 500 - 1,000 participants
Location: North Bend, Washington
Redmond Harvest Half Marathon
Date: Sep 7, 2026 - Monday
Size: 500 - 1,000 participants
Location: Redmond, Washington
Beat The Blerch
Date: Sep 12, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Carnation, Washington
The Cascade Express Marathon & Half Marathon
Get 10% Off - Use Code RG10
Date: Sep 12, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: North Bend, Washington
National Chocolate Day Run for Chocolates 5K/10K/13.1 - Seattle
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Tunnel Light Marathon and Half-Marathon
Date: Sep 13, 2026 - Sunday
Size: 500 - 1,000 participants
Location: North Bend, Washington
Race For A Soldier
Date: Sep 13, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Gig Harbor, Washington
Skagit Flats Marathon, Half Marathon and 5K
Date: Sep 13, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Burlington, Washington
Seattle North Spartan Weekend
Date: Sep 19-20, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Snohomish, Washington
Orca Half
Date: Sep 19-20, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Seattle, Washington
Mud Mountain Dam Marathon - Fall
Get 10% Off - Use Code runguides
Date: Sep 19, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Enumclaw, Washington
Bellingham Bay Marathon
Date: Sep 20, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Bellingham, Washington
Oyster Races
Date: Sep 20, 2026 - Sunday
Size: 100 - 500 participants
Location: Quilcene, Washington
Fidalgo Trail Run
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Anacortes, Washington
Oktoberfest Run 5K/10K/13.1 - Seattle
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Run or Wine 5K Series - September
Date: Sep 27, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Woodinville, Washington
Run for the Gnomes
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Maple Valley, Washington
Poulsbo Half & 10K
Date: Oct 4, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Poulsbo, Washington
Middle Fork Trail Run
Date: Oct 10, 2026 - Saturday
Size: 100 - 500 participants
Location: North Bend, Washington
Bagel Run 5K/10K/13.1 - Seattle
Date: Oct 10, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Snohomish River Run Marathon
Date: Oct 11, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Snohomish, Washington
Dick's-A-Thon
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Lake Washington Half
Date: Oct 17, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Kirkland, Washington
Dick's-A-Thon
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Halloween Trick or Trot Run 5K/10K/13.1 - Seattle
Date: Oct 31, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Grand Ridge Trail Run
Date: Nov 7, 2026 - Saturday
Size: 100 - 500 participants
Location: King County, Washington
Run the Bay
Get 10% Off - Use Code RG10
Date: Nov 8, 2026 - Sunday
Size: 100 - 500 participants
Location: University Place, Washington
Run for Mental Health 5K/10K/13.1 - Seattle
Date: Nov 14, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Coffee Lovers Run 5K/10K/13.1 - Seattle
Date: Nov 28, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
UW Medicine Seattle Marathon
Date: Nov 29, 2026 - Sunday
Size: 5,000 - 10,000 participants
Location: Seattle, Washington
Redmond Reindeer Romp
Date: Dec 5, 2026 - Saturday
Size: 100 - 500 participants
Location: Redmond, Washington
Santa Runs Tacoma
Get 10% Off - Use Code runguides
Date: Dec 12, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Tacoma, Washington
Pigtails Run
Date: Dec 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Maple Valley, Washington
Run for Breast Cancer 5K/10K/13.1 - Seattle
Date: Dec 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
A Merry Christmas Run 5K/10K/13.1 - Seattle
Date: Dec 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Seattle, Washington
Last Chance Marathon and Half Marathon
Date: Dec 31, 2026 - Thursday
Size: 100 - 500 participants
Location: Bellingham, Washington
Frost Eagle Trail Run
Date: Jan 16, 2027 - Saturday
Size: 100 - 500 participants
Location: Sammamish, Washington
MLK Freedom Run 5K/10K/13.1 - Seattle
Date: Jan, 2027 (TBD)
Size: 100 - 500 participants
Location: Seattle, Washington
Lunar New Year Run 5K/10K/13.1 - Seattle
Date: Feb, 2027 (TBD)
Size: 100 - 500 participants
Location: Seattle, Washington
My Better Half Marathon
Date: Feb, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Seattle, Washington
Valentines Live, Love, Run 5K/10K/13.1 - Seattle
Date: Feb, 2027 (TBD)
Size: 100 - 500 participants
Location: Seattle, Washington
Woolley Trail Runs
Date: Feb, 2027 (TBD)
Size: 1 - 100 participants
Location: Sedro-Woolley, Washington
