Trail Runs in Washington — 2026

There are 16 trail runs in Washington scheduled for 2026. The next is the Cougar Mountain Trail Run Series (May) in Bellevue on May 9. Washington trail runs run primarily May through November.

Running Up For Air-Chuckanut Chinscraper

Sat, May 9 · Bellingham, WA Bellingham

3 Hour Vert Challenge12 Hour Vert Challenge-4 person relay6 Hour Vert Challenge +2

From $100 Closed

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Cougar Mountain Trail Run Series (May)

Sat, May 9 · Bellevue, WA Bellevue

5.1 Miles10.8 MilesLong Series (May 10.8, June 14.5, July 19.5, August 26.2) +1

From $50 Open

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Cougar Mountain Trail Run Series (June)

Sat, Jun 13 · Bellevue, WA Bellevue

5K8.2 Miles14.5 Miles +2

From $40 Open

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Jasper Mountain Trail Fest 2026

Sat, Jun 20 · Dayton, WA Dayton

Jasper Mountain Trails, 4.4 Miles Family RunJasper Mountain Trails, Half MarathonJasper Mountain Trails, 4-Person Relay (52.4 miles) +1

From $20 Open

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OUTLAST SPOKANE

Sat, Jul 11 · Mead, WA Mead

6 Hour Challenge

From $90 Open

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Cougar Mountain Trail Run Series (July)

Sat, Jul 11 · Bellevue, WA Bellevue

5K10.8 Miles19.5 Miles

From $40 Open

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OUTLAST SEATTLE

Sat, Jul 18 · Sammamish, WA Sammamish

6 Hour Challenge

From $90 Open

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Rams Twilight Trail Run

Wed, Jul 29 · Chattaroy, WA Chattaroy

5th Annual Rams Twilight Trail Run

From $15 Closed

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Cougar Mountain Trail Run Series (August)

Sat, Aug 8 · Bellevue, WA Bellevue

5K14.5 Miles26.2 Miles

From $40 Open

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One Step Closer

Sat, Aug 15 · Seattle, WA Seattle

6 Hour18 Hour3 Hour +3

From $20 Open

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GOAT Run

Sat, Sep 12 · Port Angeles, WA Port Angeles

Half Marathon WAVE 2Half Marathon WAVE 1Marathon +1

From $65 Open 35 spots left

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Mt. Spokane Trail Run

Sun, Sep 13 · Mead, WA Mead

Kids Fun Run5K10K +2

From $0 Open

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Cirque Series - Crystal Mountain, WA

Sat, Sep 19 · Crystal Mountain, WA Crystal Mountain

Expert DivisionPro DivisionSport Division (beginner / intermediate)

From $99 Open

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Swing the Gates 5k and 10k

Sat, Oct 31 · Oak Harbor, WA Oak Harbor

5K Run10K Scavenger Hunt (cost per team)

From $30 Open

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Wild Moose Chase

Sun, Nov 8 · Nine Mile Falls, WA Nine Mile Falls

Kids Fun Run5K10K +2

From $25 Open

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Candy Land Run

Sat, Nov 28 · Richland, WA Richland

Gumdrop Loop - 1.25 mileChocolate Route - 3.5 mileLicorice Trail 10k - RUCK Challenge +2

From $20 Closed 25 spots left

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