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Half Marathons Found In Seattle, Washington

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Half Marathons in & near Seattle, Washington 2025 - 2026

The most comprehensive list of Half Marathons in and near Seattle, Washington in 2025 - 2026. Find your perfect race!

Race Calendar: Half Marathons Found In Seattle, Washington

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Run for Donuts 5K/10K/13.1 SEATTLE

Seattle, Washington
14 Jun 25
$32.80 - $52.94
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July 4th Freedom Run 5K/10K/13.1 SEATTLE

Seattle, Washington
05 Jul 25
$32.80 - $52.94
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Olympia Lakefair Races - Half Marathon, 8K & 3K

Olympia, Washington
19 Jul 25
$49.50 - $88.00
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Lake Washington Half Marathon

Kirkland, Washington
18 Oct 25 - 21 Oct 25
$56.73 - $91.29

International Sloth Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington
18 Oct 25
$32.80 - $48.70

Haunted 1M, 5K, 10K, 15K, & Half Marathon at Chiawana Park, Pasco, WA (42) 80

Pasco, Washington
18 Oct 25
$27.75 - $70.15

Haunted 5K, 10K, 13.1 & 26.2 at Lowell Riverfront Park, Everett, WA (42) 80

Everett, Washington
18 Oct 25
$33.05 - $96.65

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

Seattle, Washington
18 Oct 25
$32.80 - $48.70

Haunted 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (43) 80

Spokane, Washington
25 Oct 25
$33.05 - $70.15

Haunted 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (43) 80

Olympia, Washington
25 Oct 25
$33.05 - $70.15

Tri-Cities Marathon

Richland, Washington
26 Oct 25
$75.00 - $180.00

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

Seattle, Washington
01 Nov 25
$32.80 - $48.70

Run SEATTLE "Emerald City" 5K/10K/13.1 FALL

Seattle, Washington
01 Nov 25
$32.80 - $48.70

Pie Gobbler 5K, 10K, 13.1 & 26.2 at Heritage Park, Olympia, WA (44) 150

Olympia, Washington
01 Nov 25
$33.05 - $96.65

Pie Gobbler 1M, 5K, 10K, 15K, & Half Marathon at Langus Riverfront Park, Everett, WA (44) 80

Everett, Washington
01 Nov 25
$27.75 - $70.15

Pie Gobbler 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (45)

Olympia, Washington
08 Nov 25
$33.05 - $70.15

Run the Bay

University Place, Washington
09 Nov 25
$65.66 - $108.06

Pie Gobbler 1M, 5K, 10K, 15K, & Half Marathon at Chiawana Park, Pasco, WA (46) 80

Pasco, Washington
15 Nov 25
$27.75 - $70.15

Pie Gobbler 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (46) 80

Everett, Washington
15 Nov 25
$27.75 - $70.15

Bed to 5K/10K/13.1 Snoozers Run SEATTLE

Seattle, Washington
15 Nov 25
$32.80 - $48.70

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

Seattle, Washington
15 Nov 25
$32.80 - $48.70

Pie Gobbler 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (47) 80

Spokane, Washington
22 Nov 25
$33.05 - $70.15

Pie Gobbler 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (47)

Olympia, Washington
22 Nov 25
$33.05 - $70.15

2025 Seattle Ghost Marathon, Half & 50K

Seattle, Washington
29 Nov 25
$133.50

Run for Coffee Lovers 5K/10K/13.1 SEATTLE

Seattle, Washington
29 Nov 25
$32.80 - $48.70

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

Seattle, Washington
29 Nov 25
$32.80 - $48.70

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Langus Riverfront Park, Everett, WA (49) 80

Everett, Washington
06 Dec 25
$27.75 - $70.15

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (50) 100

Olympia, Washington
13 Dec 25
$33.05 - $70.15

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

Seattle, Washington
13 Dec 25
$32.80 - $48.70

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

Seattle, Washington
13 Dec 25
$32.80 - $48.70

Holiday 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (51) 70

Everett, Washington
20 Dec 25
$27.75 - $70.15

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

Seattle, Washington
27 Dec 25
$32.80 - $48.70

Holiday 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (52) 40

Spokane, Washington
27 Dec 25
$33.05 - $70.15

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

Seattle, Washington
27 Dec 25
$32.80 - $48.70

Holiday 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (52) 100

Olympia, Washington
27 Dec 25
$33.05 - $70.15

New Year 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (02) 60

Olympia, Washington
10 Jan 26
$33.05 - $70.15

Viking 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (06) 80

Olympia, Washington
14 Feb 26
$33.05 - $70.15

Lake Sammamish Half Marathon

Redmond, Washington
07 Mar 26
$56.73

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (10) 80

Olympia, Washington
14 Mar 26
$27.75 - $70.15

Pirate 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (15) 150

Olympia, Washington
11 Apr 26
$33.05 - $70.15

Spring Classic Duathlon, Half, 10k & 5k

Vancouver, Washington
26 Apr 26
$46.28 - $172.64

Never Say Never Half Marathon & 10K

Tieton, Washington
02 May 26
$96.40 - $122.90

Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80

Olympia, Washington
09 May 26
$33.05 - $70.15
Showing 81-120 of 124 results