Grand Ridge Trail Run

Event details

Grand Ridge Trail Run takes place at Grand Ridge Regional Park in Issaquah, Washington, on November 8, 2025. The event is the final race of the Evergreen Trail Runs season and includes multiple distance options:

• 5 Mile
• Half Marathon (approximately 14 miles)
• Full Marathon
• 50K

The race uses the Highpoint Way Trailhead as the start and follows the Issaquah-Preston Trail for 0.5 miles before beginning the climb. The half-marathon loop serves as the main long-distance loop; marathon runners complete two half-marathon loops, and 50K runners complete two half-marathon loops plus the 5-mile loop. A kid’s race on a crushed gravel trail is offered; its course is 1.1 miles with little elevation gain.

Course and logistics

Trails are mixed-use and remain open to other users, including pedestrians and cyclists. The route includes rocky, technical switchbacks, a detour on the Flowing Fir Trail, and aid stations positioned at approximate mile markers. Elevation gain by distance is listed as:

• 5 Mile: 1,200 ft
• Half: 2,400 ft
• Full: 4,800 ft
• 50K: 6,000 ft

Aid stations are stocked with water, Tailwind, GU/Clif products, PBJ sandwiches, fruit, cookies, crackers, and pretzels. The race is cupless; runners should carry a refillable container. Every finisher receives a piece of handmade finisher swag produced using solar power in Anacortes, Washington. The organizer supports environmental stewardship and partners with groups such as the Washington Trails Association. Visit the organization's website for the most recent information.