Fall - Mud Mountain Dam Marathon & Half Marathon
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
September 19, 2026 – The Full Marathon Returns! We’re excited to announce that the Full Marathon is coming back in 2026, and will also be part of our. Start planning now for your next Boston Qualifier on this beautiful, fully paved downhill course, no tunnel, no dirt, no BQ time penalty! There’s no excuse not to do the dam thing! Marathon The marathon course begins at Mud Mountain Dam (elevation 1,400′). Runners will follow a fully paved route through picturesque farmlands and forested areas,...
Course Profile
Course profile data unavailable for this race.
Course features
Accessibility & inclusion
Vibe & community
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
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Common questions
How hard is the Fall - Mud Mountain Dam Marathon & Half Marathon Marathon?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
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- Same distance, statewide: All Marathon races in Washington
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