November 29, 2025, will be the 40th running of the Seattle Ghost Marathon. &nbsp;It started in 1985 when the Seattle Marathon changed courses and moved from Saturday to Sunday of Thanksgiving weekend.
The course is a very flat and fast certified Boston Marathon qualifier. &nbsp;The marathon is comprised of two 13.1-mile loops run on streets and sidewalks along scenic Lake Washington in Seattle, WA.
The race start/finish is at the Ferdinand St Boat Launch (47.557338, -122.262188) 5018 Lake Washington Blvd. S, Seattle, WA 98118. &nbsp;It runs south with a clockwise loop of scenic Seward Park and back north to the start/finish area. &nbsp;It continues north along Lake Washington through Leschi. &nbsp;The north turnaround is just past the Madrona Drive intersection (47.613496, -122.281265) then you run south back to the start/finish. &nbsp;There are aid stations every 3.1 miles on each loop.
The race is managed and supported by two non-profit groups. &nbsp;NW Ultras has been the driving force behind the event since 2004 and Green Lake Crew has supported the event since 2013. &nbsp;It is limited to 450 total participants regardless of which event they run. &nbsp;
Packet pickup is on race day.
No dogs are strollers are permitted on the course due to the sidewalk sections.

Marathon Summary

Marathon Results