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Trail Running Calendar near South Lake Union 2025-2026

Explore the top trail runs near South Lake Union for 2025-2026! We've gathered 29 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
6
Sa

Redmond Reindeer Romp
Trail Run 5 mi 13 mi
Dec
13
Sa

Pigtails Run
Trail Run Half Marathon Marathon 50 km
Dec
20
Sa

Seward Solstice Run
Trail Run 4 mi 10 km
January 2026
Jan
3
Sa

Absolution Run
Trail Run 4 mi 8 mi
Jan
3
Sa

Race to the Top of Mount Si
Trail Run 4 mi
Jan
10
Sa

Bridle Trails Winter Running Festival
Trail Run 5 mi 10 mi 15 mi 50 km
Jan
17
Sa

Frost Eagle Trail Run
Trail Run 5 mi 13 mi
Jan
18
Su

Coffee Lovers and Chocolate Lovers 10K
Trail Run 5 km 10 km
Jan
31
Sa

Interlaken Icicle Dash
Trail Run 5 km 10 km
February 2026
Feb
8
Su

West Seattle Beach Run - Fat Ass
Trail Run Half Marathon Marathon 50 km
Feb
21
Sa

Lord Hill Trail Run
Trail Run 5 km 10 mi 20 mi 50 km
March 2026
Mar
14
Sa

Pie High Trail Run
Trail Run 5 km 10 km Half Marathon
Mar
21
Sa

Dash Point Trail Run
Trail Run 10 km 13 mi
Mar
28
Sa

A2PT 5k MS Fundraiser
Trail Run 5 km
Mar
28
Sa

Spring Run for Fun @ Bridle Trails
Trail Run 5 km 10 km Half Marathon Marathon
Mar
29
Su

Redmond Marathon
Trail Run 26 mi
April 2026
Apr
18
Sa

Squak Mountain Trail Run
Trail Run 12 km Half Marathon 50 km
May 2026
May
8-9
Fr - Sa

Tiger Claw
Trail Run 3 mi 50 km
May
9
Sa

Trillium Trail Run
Trail Run 5 km 10 km
May
16
Sa

Soaring Eagle Trail Run
Trail Run 5 km 10 km Half Marathon