Grand Ridge Trail Run

Issaquah, United States • 8 Nov 2025

Event overview

The Grand Ridge Trail Run takes place on November 8, 2025, at Grand Ridge Regional Park in Issaquah, WA. The event is presented by Arc’teryx Seattle and serves as the Evergreen series awards finale. Distance options offered are:

  • 5 Mile
  • Half Marathon
  • Full Marathon
  • 50K

The course uses two distinct loops. All distances start at the Highpoint Way Trailhead and follow the Issaquah-Preston Trail for 0.5 miles before beginning the climb. Rocky, technical switchbacks lead to the 5-mile junction; the 5-mile follows a lollipop loop, while the half, full and 50K continue along Grand Ridge with a detour on the Flowing Fir Trail and passage to the Duthie aid station. The half loop is described as closer to 14 miles than 13 miles. The trails remain open to other users during the event, including pedestrians and cyclists.

Course details and services

Approximate elevation gain is listed as: 5 Mile 1200 ft, Half 2400 ft, Full 4800 ft, 50K 6000 ft. Aid stations are located at approximate mile markers and are stocked with water, Tailwind, GU/Clif products, PBJ sandwiches, fruit, cookies, crackers and pretzels. The race is cupless; participants are expected to carry a refillable container. Every finisher receives a piece of handmade finisher swag produced with solar power in Anacortes. A free Kid’s Race uses a crushed gravel 1.1-mile course with little elevation gain. Parking is available at the trailhead lot, along SE 79th St, and at the I-90 Church parking lot. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Marathon
13 mi
Half Marathon
5 mi
5 Mile
5 mi
5m Brunch Run
Kid's Race
Visit the organization's website for the most recent information.
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