Marathons near Seattle (2026-27)
8 upcoming marathons near Seattle in the next 12 months. The next is Seattle Ghost Marathon, Half & 50K on Saturday November 28 in Seattle, from $150.
All SeattleSeattle (city) (2)Eastside & South King (4)Snohomish County (1)Tacoma & South Sound (1)
By date
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Seattle Ghost Marathon, Half & 50K
Sat Nov 28 · 7:00 AM · Seattle · Seattle (city)
Half marathonMarathon
from $150 -
UW Medicine Seattle Marathon & Half Marathon
Sun Nov 29 · 7:00 AM · Seattle · Seattle (city)
Half marathonMarathon
see site -
from $150Goes up Nov 1
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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 -
Spring - Mud Mountain Dam Marathon & Half Marathon
Sat May 29 · 7:00 AM · Enumclaw · Eastside & South King
Half marathonMarathon
from $105Goes up Jan 1 -
Super Hyak Marathon and Half
Sat Jun 19 · 7:00 AM · North Bend · Eastside & South King
Half marathonMarathon
Reg. closed -
Fall - Mud Mountain Dam Marathon & Half Marathon
Sat Sep 4 · 7:00 AM · Enumclaw · Eastside & South King
Half marathonMarathon
from $105Goes up Jan 1 -
The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Sun Oct 17 · 7:30 AM · Snohomish · Snohomish County
5K10KHalf marathonMarathon
from $45Goes up Sep 7