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Trail Running Calendar near Sumner 2025-2026

Monthly updates for Sumner

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

Explore the top trail runs near Sumner for 2025-2026! We've gathered 30 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
3
Sa

Race to the Top of Mount Si

Trail Run 4 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
8
Su

Trio Trail Run

Trail Run 3 km 5 km
March 2026
Mar
8
Su

Trio Trail Run

Trail Run 3 km 5 km
Mar
21
Sa

Dash Point Trail Run

Trail Run 10 km 13 mi
Mar
28
Sa

A2PT 5k MS Fundraiser

Trail Run 5 km
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

Cougar Mountain Trail Run Series

Trail Run 5 mi 11 mi
May
23
Sa

The Freedom 50

Trail Run 31 mi 50 mi
June 2026
Jun
6
Sa

Vashon Island Ultramarathon & Trail Run

Trail Run 10 mi 20 mi 50 km
Jun
6
Sa

Rainier to Ruston Relay

Trail Run 50 mi
Jun
6
Sa

Tiger Mountain Trail Run

Trail Run 5 km 13 km 14 mi
Jun
7
Su

Light at the End of the Tunnel Marathon

Trail Run Half Marathon Marathon
Jun
13
Sa

Cougar Mountain Trail Run Series

Trail Run 5 km 8 mi 15 mi
Jun
20
Sa

Tiger Peak Challenge

Trail Run 5 mi Half Marathon 50 km
Jun
20
Sa

Hotfoot Trail Run

Trail Run 5 km
July 2026
Jul
11
Sa

Cougar Mountain Trail Run Series

Trail Run 3 mi 11 mi 20 mi