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Trail Running Calendar near Seattle 2026-2027

Monthly updates for Seattle

Get new running races (and updates) in your inbox every month.

Explore the top trail runs near Seattle for 2026-2027! We've gathered 57 exciting races in the area. Check out our detailed list below to find your next local race.

September 2026
Sep
19
Sa

Dragonslayer Fantasy Dash and Strut - Seattle

Trail Run 5 km
October 2026
Oct
3-4
Sa - Su

North Bend Trail Fest

Trail Run 10 km 30 km 35 km
Oct
5
Mo

North Bend Skyline 30K

Trail Run
Oct
10
Sa

Middle Fork Trail Run

Trail Run 11 km Half Marathon 22 mi 50 km
Oct
28
We

Ten Trails Trot n' Treat Relay Scramble

Trail Run 11 km
Oct
31
Sa

Spooky 10K Trail Race

Trail Run 10 km
November 2026
Nov
7
Sa

Grand Ridge Trail Run

Trail Run 5 mi 13 mi Marathon 50 km
Nov
7
Sa

Carkeek Cooler Trail Run

Trail Run 5 km 10 km
Nov
21
Sa

Ravenna Refresher Trail Run

Trail Run 4 km 8 km 12 km
December 2026
Dec
5
Sa

Redmond Reindeer Romp

Trail Run 5 mi 13 mi
Dec
12
Sa

Pigtails Run

Trail Run 13 mi 26 mi 50 km
Dec
19
Sa

Seward Solstice Run

Trail Run 4 mi 10 km
January 2027
Jan
2
Sa

Absolution Run

Trail Run 4 mi 8 mi
Jan
16
Sa

Frost Eagle Trail Run

Trail Run 5 mi Half Marathon
Jan
30
Sa

Interlaken Icicle Dash

Trail Run 5 km 10 km
February 2027
Feb
13
Sa

Ten Trails Active Club Heartfelt Hustle

Trail Run 5 km
March 2027
Mar
27
Sa

A2PT 5k MS Fundraiser

Trail Run 5 km
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