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2025 Seattle Ghost Marathon, Half & 50K

Name: 2025 Seattle Ghost Marathon, Half & 50K
Start: 2025-11-29
End: 2025-11-29
Location: Seattle, Washington

location_city Seattle

location_on Washington

flag United States

calendar_today 29 Nov, 2025

directions_run Running

language Official Website

About the Event

November 29, 2025, will be the 40th running of the Seattle Ghost Marathon. 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. 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. It runs south with a clockwise loop of scenic Seward Park and back north to the start/finish area. It continues north along Lake Washington through Leschi. The north turnaround is just past the Madrona Drive intersection (47.613496, -122.281265) then you run south back to the start/finish. There are aid stations every 3.1 miles on each loop.

The race is managed and supported by two non-profit groups. NW Ultras has been the driving force behind the event since 2004 and Green Lake Crew has supported the event since 2013. It is limited to 450 total participants regardless of which event they run.

Packet pickup is on race day.

No dogs are strollers are permitted on the course due to the sidewalk sections.

See more details on www.nwultras.com

Races Offered

Other

Nov 29, 2025

straighten

Distance — Other

terrain

Type — Road running

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Event has passed

Half-Marathon

Nov 29, 2025

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Distance — Half-Marathon

terrain

Type — Road running

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Marathon

Nov 29, 2025

straighten

Distance — Marathon

terrain

Type — Road running

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Event has passed

Weather Overview

These values represent the 3-year monthly averages for November in Seattle.

Temp (°C)

Feels Like (°C)

thermostat 4.4° / 9.6°

wb_sunny 0.5° / 6.6°

Wind (km/h)

Humidity (%)

air 11.4 /

water_drop 82.8%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 4.4° / 9.6°

wb_sunny 0.5° / 6.6°

air 11.4 km/h

water_drop 82.8%

About Seattle

Seattle, Washington sits at one of the most beautiful spots in the United States. Occupying a narrow isthmus between the Puget Sound and Lake Washington, it is the biggest city in the Pacific Northwest, with 780,000 people in Seattle and over four million people in the metro area. Seen from above, carpets of evergreen trees, pristine blue waters, and snowy white mountains surround the downtown's metallic skyscrapers, earning the city its nickname The Emerald City.