Trail RunningWashington
Trail Running in Washington
Browse upcoming amateur trail running events and compare dates, locations, and popularity. in Washington.
Upcoming dates Washington Community-rated events
Events listed
140
Sport
Trail Running
Area
Washington
Radius
350 km
This calendar in numbers
This calendar currently lists 140 upcoming events, from Aug 5, 2026 to Jun 19, 2027. September is the busiest month, with 42 events scheduled. Events are spread across 91 different locations; Seattle hosts the most (9). Course distances range from 5 km to 321.9 km.
Browse all 140 events by date
August 2026
- The Wonderland – 3 Day Supported Circumnavigation #2 Aug 5
- Fat Dog 120 Trail Race Aug 7
- Angry Owl Ultramarathons Aug 8
- Cougar Mountain Trail Race #4 Aug 8
- Elkhorn Relay Aug 8
- Larrabee Lakes Aug 8
- Larrabee Lakes Aug 8
- ZERO DARK ULTRA Aug 8
- Nanaimo Open Water Swim and Swimrun Challenge Aug 9
- The Wonderland – 3 Day Supported Circumnavigation #3 Aug 9
- Portland Trail Series Summer – #5 Aug 12
- The Wonderland – 3 Day Supported Circumnavigation #4 Aug 12
- Wonderland ALT Aug 12
- Bigfoot 20 Mile Aug 14
- Bigfoot 200 Mile Endurance Run Aug 14
- Ultra-Trail Whistler By UTMB 100K Aug 14
- 2026 Wyeast Trailfest Aug 15
- 5K FEST Aug 15
- Cobble Hill Aug 15
- Move More 5K Aug 15
- One Step Closer Aug 15
- One Step Closer Aug 15
- Squamish 50 Aug 15
- Tartarus Backyard Ultra Aug 15
- Ultra-Trail Whistler By UTMB 50K Aug 15
- Vancouver Island Trail Running Series - Cobble Hill 2026 Aug 15
- Wy’East 28K and 50K Trail Fest Aug 15
- Wy’east Trailfest Aug 15
- Wy’east Trailfest Aug 15
- Emerald City 5k Aug 16
- Olympic Mountains Trail Races Aug 16
- Ragnar Trail – Ranier Aug 21
- Gruesome Twosome 22K, 11K & 5K Aug 22
- Kachess Ridge 50 Aug 22
- Lake Padden Relay Aug 22
- Post Canyon Half Marathon Aug 22
- Ultra Trail Whistler by UTMB Aug 22
- Burnaby Lake Run Aug 23
- Cascade Crest 100m 2026 Aug 28
- Backcountry Rise Aug 29
- Iron Horse Half Aug 30
September 2026
- Portland Trail Series Fall – #1 Sep 2
- Dark Divide Trail Races Sep 4
- Freedom Ultra Festival Sep 4
- 2026 5 Peaks Trail Running Series: Whistler Blackcomb Sep 5
- 2026 Handloggers Half Marathon Sep 5
- 5 Peaks British Columbia Race 4 - Whistler Blackcomb Sep 5
- Handloggers Half Marathon Sep 5
- Jump off Joe Marathon, Halfer, 10k Sep 5
- Medal Madness 5K, 10K, 13.1M & 26.2M at Everett, WA (36) Sep 5
- Poco Trail Relay Sep 6
- Beat The Blerch Sep 12
- Dragonslayer Fantasy Dash & Strut - Portland, OR Sep 12
- Finlayson Arm Sep 12
- Fly Away 10K Run and 5K Run/Walk Sep 12
- Frosty Mountain Ultra race 2026 Sep 12
- Frosty Mountain Ultra Trail Race Sep 12
- McCormick 24 Sep 12
- Raw Oregon Honey 5K Sep 12
- RBC Granfondo Whistler Sep 12
- Sole Survivor Backyard Ultra Sep 12
- The Cascade Express Marathon & Half Marathon Sep 12
- Three Corner Rock PCT Trail Races Sep 12
- Boring Marathon Sep 13
- Forever Young 8K Sep 13
- Mt. Spokane Trail Run Sep 13
- Rave Green Run Sep 13
- Tall Tree 10K Sep 13
- Portland Trail Series Fall – #2 Sep 16
- Be Fearless Trail Marathon, Half & 11K Sep 19
- Cirque Series – Crystal Mountain Sep 19
- Dragonslayer Fantasy Dash & Strut - Seattle Sep 19
- Fall - Mud Mountain Dam Marathon & Half Marathon Sep 19
- Mountain Lakes 100 Sep 19
- Plain Endurance Runs Sep 19
- St. Jude Walk/Run - Seattle Sep 19
- Dirty Feet Trestle Run Sep 20
- Oyster Races Sep 20
- 2026 5 Peaks Trail Running Series: Mount Seymour Sep 26
- 5 Peaks British Columbia Race 5 - Mount Seymour Sep 26
- Fidalgo Sep 26
- Fidalgo Trail Run Sep 26
- Portland Trail Series Fall – #3 Sep 30
October 2026
- Baker Lake 50k Oct 3
- Hyak Passage Oct 3
- Lastest Not Fastest Oct 3
- Live Love Run 5K/ 10K/ 21K Oct 3
- North Bend Trail Fest Oct 3
- 2026 Sekani (ish) Trail Run Oct 4
- Baker Lake Classic 25k Oct 4
- Condor 25K Trail Run Oct 4
- Hit The Barlow Trail Oct 4
- North Bend Trail Fest Oct 4
- Season's End Trail Run/Ride Oct 4
- Mad Meadows 50 Oct 10
- ROGUE RIVER Oct 10
- The Golden 6 Hour Oct 10
- Valley Vertikiller Oct 10
- VALLEY VERTIKILLER TRAIL RACE 2026 Oct 10
- Whistler Turkey Trot Oct 11
- Elk-King's Trail Races Oct 12
- Portland Trail Series Fall – #4 Oct 14
- Blanchard Beast Trail Race Oct 17
- Elk-Kings Trail Races Oct 17
- Dirty Feet Trail Run - Predator Ridge Oct 18
- Dirty Feet Trail Run #5 Oct 18
- Dirty Feet Trail Run #5 Oct 18
- Dirty Feet Trail Run #5 - Predator Ridge Oct 18
- Hallow's Eve Trail Race Oct 24
- Happy Girls Run Half Marathon - Sisters Oct 24
- Qualicum Bay Oct 24
- B'Town Fall Fest - PupKin 5K Fun Run Oct 25
- Portland Trail Series Fall – #5 Oct 28
- Monster Dash 5K - Burnaby Halloween Festival Oct 31
- Spooky 10K Trail Race Oct 31
- Thunder River Oct 31
November 2026
- Vancouver First Responders Half Marathon Trail Run Nov 1
- Carkeek Cooler Trail Run Nov 7
- Grand Ridge Nov 7
- Klickitat Trail Run Nov 7
- The Crunchwrap Crawl, 50K's of regret! Nov 7
- Willapa Trail Festival Nov 7
- The Phantom Run Nov 14
- Ravenna Refresher Trail Run Nov 21
- The Ruff Nov 22
- The Ruff Nov 22
- 2026 Seattle Ghost Marathon, Half & 50K Nov 28
December 2026
- Climb 89 Dec 4
- Redmond Reindeer Romp Dec 5
- PIGTAILS RUN Dec 12
- Seward Solstice Run Dec 19
- Last Chance Marathon and Half Marathon Dec 31
- Vancouver Trail Run Dec 31
- Vancouver Trail Run Dec 31
January 2027
- Absolution Run Jan 3
- Frost Eagle Trail Run Jan 16
- Interlaken Icicle Dash Jan 30
February 2027
- Hagg Lake Mud Runs Feb 13