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Seattle Ghost Marathon, Half & 50K
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Seattle Ghost Marathon, Half & 50K

Seattle, Washington, United States View on map
Nov 28, 2026 (America/Los_Angeles local time)
Running

About this race

November 28, 2026, will be the 41st 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 the non-profit NW Ultras which has been the driving force behind the event since 2004.  Green Lake Crew has supported the event since 2013.  The race 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

Pick your distance

Running

2026 Seattle Ghost Marathon

Boston Marathon qualifier based on run time and gender. If you will take longer than 6 hours please start early. We have a 6am early start and you can start earlier if needed.

Nov 28, 2026 Marathon 7:00 AM
$165.00
Open

2026 Seattle Ghost Half Marathon

If you will take longer than 5 hours please start early. We have a 6am early start and you can start earlier if needed.

Nov 28, 2026 Half-Marathon 8:00 AM
$165.00
Open

Trail running

2026 Seattle Ghost 50K

If you will take longer than 7 hours please start early. We have a 5am early start if needed.

Nov 28, 2026 Ultra 6:00 AM
$165.00
Open

Typical race-day weather

Based on 9 years of Open-Meteo archive data for this event's race dates in Seattle, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 4.0° / Maximum temperature (race-week average) 8.4°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 0.6° / Maximum feels like — heat index / wind chill (race-week average) 6.3°
Peak wind (km/h)
Strongest wind of the day (race-week average)
18.1
Precip (mm)
Precipitation over the day (race-week average)
4.4mm
Humidity
Mean relative humidity (race-week average)
83.8%
Sunrise
Sunrise at the start line on November 28, 2026 (PST)
Sunset
Sunset at the start line on November 28, 2026 (PST)
Daylight
Hours between sunrise and sunset on race day
8h 48m

The sun rises at 7:33 AM and sets at 4:21 PM local time (PST) in Seattle on November 28, 2026 — 8h 48m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 131 Seattle events

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