Seattle Marathon
Road Running covering 21.1 km to 42.2 km in Seattle (Washington, United States)
Seattle Marathon is an endurance sporting event in Seattle, Washington, US focused on Road Running. It is part of World Marathon Majors Qualifier, Boston Marathon Qualifier. Key features include City Run, Seaside & Coast, Culture & History, Kids & Youth Races.
The race program comprises 2 competitions, including Marathon (42.2 km, +190 m D+), and Half Marathon (21.1 km, +95 m D+). The next edition is officially confirmed for November 29, 2026. Official race regulations, course details, and registration information are provided on the organizer's website (seattlemarathon.org).

Event characteristics
Races & distances (2)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Marathon | Road Running | 42.2 km | +190 m | 8 m - 88 m | Loop course | Route & profile |
| Half Marathon | Road Running | 21.1 km | +95 m | 11 m - 51 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 8 m to 88 m above sea level (+190 m D+, -190 m D-)
Elevation profile & course telemetry
Altitude from 11 m to 51 m above sea level (+95 m D+, -95 m D-)
Frequently asked questions (FAQ)
When and where does Seattle Marathon take place?
Seattle Marathon takes place in Seattle, Washington, US (start area at coordinates 47.6062° N, 122.3321° W). The next edition is officially confirmed for November 29, 2026.
What races and distances are offered at Seattle Marathon?
The race program comprises 2 competitions, including Marathon (42.2 km, +190 m D+), and Half Marathon (21.1 km, +95 m D+). The competitions belong to Road Running.
What is the course layout and elevation profile for Seattle Marathon?
The main competition (Marathon over 42.2 km) is designed as a loop course featuring +190 m of elevation gain and -190 m of elevation loss, ranging between 8 m and 88 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for Seattle Marathon?
Official race regulations, course details, and registration information are provided on the organizer's website (seattlemarathon.org).