🇺🇸Seattle, USA
Seattle Marathon
Nov 29, 2026
Distance
42.2 km
Elevation gain
215 m
Terrain
Road
Entry type
Open entry
PB potential
Good conditions for a solid performance
Beginner friendly
Great for newcomers — manageable course, strong support
About this race
The Seattle Marathon is staged on the Sunday after Thanksgiving, with the city's Douglas firs and maples still clinging to autumn colour through the Washington Park Arboretum. The course's defining moment is crossing the I-90 floating bridge over Lake Washington — one of the most remarkable structures to run across in American marathoning. The 215m of elevation reflects Seattle's genuinely rolling topography. November conditions are classic Pacific Northwest: 5–12°C, frequently overcast, occasionally wet — proper autumn marathon racing. Organisation is mature, crowd support through the University District is warm, and the finish at Seattle Center beneath the Space Needle is unmistakable.
Typical race-day weather
Temperature
5–12°C
Humidity
72–85%
Conditions
Pacific Northwest autumn — cool, overcast, possible drizzle
Wind
10–20 km/h westerly
Qualifies for
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