Washington · Marathon · Half · 5K
Seattle Marathon
Seattle Marathon is a marathon, half marathon and 5K event held in Seattle, Washington. Its next confirmed date is Sunday, November 29, 2026. About 15,000 runners take part across all distances.
- Race day
- November 29, 2026
- Location
- Seattle, WA
- Field size
- ~15,000 runners
Race details
- Date
- Sunday, November 29, 2026
- Location
- Seattle, Washington
- Distances
- Marathon, Half, 5K
- Field size
- About 15,000 runners
- Course
- Rolling hills
- Registration
- raceroster.com
- Official website
- seattlemarathon.org
Registration, course & weather
- Registration status
- Open
- Entry fee
- Listed fee for the longest distance, $187.49 (from raceroster.com, checked October 2, 2026)
- Start time
- 7:00 AM PST
- Course profile
- Loop course; Road surface; 818 ft gain, 908 ft loss (estimated from third-party elevation data)
About the Seattle Marathon
Washington's flagship Thanksgiving-weekend marathon and half marathon, featuring a scenic course around Lake Washington and the city waterfront with views of the Cascades and Olympics.
Rankings and notes
- Rankings and awards
- USATF-certified; Boston Marathon qualifier; Washington's premier marathon, held Thanksgiving weekend since 1970
- Notes
- Largest marathon in Washington
More marathons in Washington
Coming up next, by confirmed date.
-
UW Medicine Seattle Marathon and Half MarathonSeattle, WAFull MarathonHalf Marathon (RunWalkVirtual +1 more
More races in Seattle
More upcoming races in Washington
Keep exploring
- All races in Washington
- 5Ks in Washington 155 upcoming races
- 10Ks in Washington 97 upcoming races
- Half Marathons in Washington 49 upcoming races
- Marathons in Washington 24 upcoming races
- Running in Seattle 51 upcoming races
- 5Ks in the United States 6,000 upcoming races
- Half Marathons in the United States 1,668 upcoming races
- Marathons in the United States 594 upcoming races
- Fall Marathons
- November Marathons
- November races in Washington
- Marathons in Idaho 13 upcoming races
- Marathons in Oregon 8 upcoming races
- Marathons in California 39 upcoming races
- Marathons in Utah 19 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Seattle Marathon: common questions
- When is the Seattle Marathon?
- The next confirmed date is Sunday, November 29, 2026.
- Where is the Seattle Marathon held?
- In Seattle, Washington.
- What distances does the Seattle Marathon offer?
- Marathon, Half and 5K.
- How many people run the Seattle Marathon?
- About 15,000 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Seattle Marathon?
- Registration is handled by the organiser at raceroster.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Seattle Marathon?
- Yes — registration is open. Listed fee for the longest distance, $187.49 (from raceroster.com, checked October 2, 2026).
- What time does the Seattle Marathon start?
- 7:00 AM PST.
- What is the course like at the Seattle Marathon?
- Loop course; Road surface; 818 ft gain, 908 ft loss (estimated from third-party elevation data).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.