Seattle Ghost Marathon
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Event details
The 2025 Seattle Ghost Marathon, Half Marathon, and 50K take place on November 29, 2025, in Seattle, WA (zip 98118). Entry fees listed for each event are $150. Registration closes November 28, 2025. The event field is limited to 450 total participants across all races.
- 2025 Seattle Ghost Marathon - two 13.1-mile loops
- 2025 Seattle Ghost Half Marathon
- 2025 Seattle Ghost 50K
Course and logistics
The start and finish are at the Ferdinand St Boat Launch, 5018 Lake Washington Blvd. S (47.557338, -122.262188). The marathon course uses two 13.1-mile loops on streets and sidewalks along Lake Washington. The route runs south with a clockwise loop of Seward Park, returns to the start area, continues north through Leschi, and has a north turnaround just past the Madrona Drive intersection (47.613496, -122.281265). Aid stations are located approximately every 3.1 miles on each loop. The course is certified and is a Boston Marathon qualifier. The event is managed by NW Ultras (since 2004) with support from Green Lake Crew (since 2013). Packet pickup is on race day. Dogs and strollers are not permitted on the course. Visit the organization's website for the most recent information.