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Trail Running Calendar near Cumberland 2026-2027

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Explore the top trail runs near Cumberland for 2026-2027! We've gathered 50 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

March 2027
Trail races at Dash Point State Park combine sandy beaches and lush forest singletrack with 10K, half marathon and a kids race.
Loop-based backyard ultra in Vashon, WA offering 6 hour, 12 hour, 24 hour and relay options on a 4.167 mile forest loop.
A 12 hour lap-based endurance run at Green Lake Park in Seattle on a 3.2 mile loop, with a concurrent 5 hour option and listed entry details.
April 2027
Trail races on Squak Mountain near Issaquah offering 12K, half marathon and 50K courses with steep climbs, technical singletrack and mountain views.
May 2027
A multi-route trail event on Tiger Mountain with three summit loops, offering a 50k option plus The Ascent, Big Cat, and The Ambush over a May weekend in Issaquah.
Two trail races at Cougar Mountain Regional Wildland Park on May 8, 2027, featuring forest single track and series scoring across short and long divisions.
Trail races at Soaring Eagle Park in Sammamish on mostly flat, rooty forest trails with 5K, 10K, half marathon and kids races.
Trail runs of 4k, 8k, and 12k at Ravenna Park use a 4.1 km forest loop with moderate climbs; aid station, post-race food, and awards are provided.
Timed loop races at Magnuson Park on a 1.54 mile scenic loop with chip lap counting, aid station, awards, t shirt and a boxed vegetarian meal.
June 2027
A USATF sanctioned trail event on June 5, 2027 on Vashon Island WA offering 50K, 20 mile and 10 mile looped courses with aid stations and limited entries.
A 50 mile team relay from the foothills of Mount Rainier to Tacoma's Ruston Way waterfront, run by teams of 2, 3, 4, or 6 with a waterfront finish festival.
Green River Marathon on June 5, 2027 runs from South Kent to Alki with marathon, half, relay and 50K on a mostly flat course with waterfront views.
Triathlon, duathlon and running events at Lake Wilderness Park featuring lake swims, rolling bike routes and trails along the Cedar River.
Trail races at Cougar Mountain Regional Wildland Park near Seattle with 5 km, 8.2 miles, and 14.5 miles through forest, single-track, hills, and marsh.
Point to point USATF certified marathon and half on the Palouse to Cascades Trail with a sustained downhill profile, aid stations, shuttles, and live chip timing.
Forest trail races at Carkeek Park in Seattle with 5k and 10k routes, varied terrain, an aid station at the meadow, post race food, and awards.
Trail ultramarathon in Hyak WA on June 25 2027 offering 100 mile, 100K and 50 mile courses along the Palouse to Cascades Trail.
A 24-hour choose-your-own-adventure trail event at Camp Sheppard with six routes, optional side quests for bonus points, and live leaderboard for solo or three-person teams.
July 2027
Evening trail loop through Seward Park's old growth forest with 4.2 mile and 10k options, aid station, post-run food, awards, and on-course snacks.
Multiple trail races in Cougar Mountain Regional Wildland Park near Seattle, offering 5k, 10.8 mile and 19.5 mile courses as part of a series supporting King County Parks.
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