2025 Seattle Ghost Marathon, Half & 50K

🏃‍♂️ Race Overview

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.

📏 Course Information

• Certification: The course is a very flat and fast certified Boston Marathon qualifier.
• Loop Distance: The marathon is comprised of two 13.1-mile loops run on streets and sidewalks along scenic Lake Washington in Seattle, WA.
• Route Description: 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.
• Turnaround Point: 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.

👥 Event Management

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

🎟️ Race Day Information

• Packet Pickup: Packet pickup is on race day.
• Restrictions: No dogs or strollers are permitted on the course due to the sidewalk sections.
• More Details: See more details on www.nwultras.com.
• Registration: For registration and more information, visit here.