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Spring half marathons near Seattle (2027)
19 half marathons on the calendar from March to May, starting with Brooks Lake Sammamish Half Marathon presented by REI on Saturday March 6. 8 of them publish an upcoming price increase, so signing up early saves money.
All spring races5K races (28)10K races (20)Half marathons (19)Marathons (3)Trail races (6)
By date
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Brooks Lake Sammamish Half Marathon presented by REI
Sat Mar 6 · 7:30 AM · Redmond · Eastside & South King
Half marathonTrail
from $91Goes up Nov 1 -
from $40Goes up Oct 18
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from $51Goes up Nov 1
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St. Paddy's Day Lucky Run 5K/10K/13.1 Seattle
Sat Mar 20 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
Sunrise Marathon 5K/10K/13.1 Seattle
Sat Mar 20 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
Always Hope Easter Run Seattle
Sat Mar 27 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
from $30
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Mill Town Half Marathon, 10K and 5K
Sat Mar 27 · 7:50 AM · Everett · Snohomish County
5K10KHalf marathon
from $45Goes up Jan 14 -
Run for PB&J 5k/10k/13.1 Seattle
Sat Apr 10 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
Sloth Run 5K/10K/13.1 Seattle
Sat Apr 10 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
from $30
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from $30
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Tacoma City Marathon / Half / Ghost / 10K / 5K / 1K
Sat May 1 · 8:00 AM · Tacoma · Tacoma & South Sound
0.62 miles5K10KHalf marathonMarathon
from $10Goes up Jan 1 -
Kirkland Half Marathon & 5K
Sun May 2 · 7:30 AM · Kirkland · Eastside & South King
1K5KHalf marathon
from $15Goes up Nov 1 -
from $57Goes up Dec 1
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Run for Chocolate 5k/10k/13.1 Seattle
Sat May 8 · 7:30 AM · Seattle · Seattle (city)
1 mile5K10KHalf marathon
from $30 -
Evergreen Half and 5 Mile
Sun May 23 · 8:00 AM · Snohomish · Snohomish County
5 milesHalf marathonTrail
from $55 -
Spring - Mud Mountain Dam Marathon & Half Marathon
Sat May 29 · 7:00 AM · Enumclaw · Eastside & South King
Half marathonMarathon
from $105Goes up Jan 1 -
from $30