Belfair

Trail Running Calendar near Belfair 2026-2027

Explore the top trail runs near Belfair for 2026-2027! We've gathered 30 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

June 2027

Vashon Island Ultramarathon & Trail Run

Vashon | 17 mi from Belfair

Trail Run 10 mi 20 mi 50 km

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 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.

Rainier to Ruston Relay

Tacoma | 22 mi from Belfair

Trail Run 50 mi

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.

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

Kent | 28 mi from Belfair

Trail Run 13 mi 26 mi 50 km

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.

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.

Carkeek Warmer Trail Run

Seattle | 25 mi from Belfair

Trail Run 5 km 10 km

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.

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.

July 2027

Seward Sizzler Trail Run

Seattle | 25 mi from Belfair

Trail Run 4 mi 10 km

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.

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.

Muddy Dash - Seattle

Obstacle Run 5 km

A muddy obstacle course at Motowest MX Motocross Track in Port Orchard on July 24, 2027 offering up to 3 miles of mud obstacles and two registration options.

A muddy obstacle course at Motowest MX Motocross Track in Port Orchard on July 24, 2027 offering up to 3 miles of mud obstacles and two registration options.

Beast Of Big Creek

Hoodsport | 15 mi from Belfair

Trail Run 10 km 24 km

Mountain skyrace and 10 km forest loop on Mount Ellinor with steep ascent, aid stations, prize money, and cupless aid for sustainability.

Mountain skyrace and 10 km forest loop on Mount Ellinor with steep ascent, aid stations, prize money, and cupless aid for sustainability.

August 2027

One Step Closer

Seattle | 25 mi from Belfair

Trail Run Backyard Ultra

Timed trail events on a scenic two mile loop in Lincoln Park with multiple timed options plus a 30 minute kids race and festival style aid stations.

Timed trail events on a scenic two mile loop in Lincoln Park with multiple timed options plus a 30 minute kids race and festival style aid stations.

September 2027

Summer Spirit Run

Seattle | 25 mi from Belfair

Road Race Obstacle Run 5 km 10 km 15 km

A late summer community running event at Magnuson Park in Seattle offering 5k, 10k, 15k, a Kids Dash and an Obstacle Dash.

A late summer community running event at Magnuson Park in Seattle offering 5k, 10k, 15k, a Kids Dash and an Obstacle Dash.

October 2027

Grit City Backyard Ultra

Tacoma | 22 mi from Belfair

Backyard Ultra 50 mi

A backyard ultra in downtown Tacoma with a 3.33-mile loop repeated every hour for up to 15 hours, passing the Bridge of Glass and the Tacoma Dome.

A backyard ultra in downtown Tacoma with a 3.33-mile loop repeated every hour for up to 15 hours, passing the Bridge of Glass and the Tacoma Dome.