Mud Mountain Dam Marathon
Mud Mountain Dam Marathon gives Washington runners a late-May point-to-point route from Buckley toward Orting, with Tacoma-area event production.
Quick facts
- Spring Dam Marathon starts at 7:00 a.m. on May 30.
- Race uses separate start and finish locations in the Enumclaw and Orting area.
- TCMA event page is the official race information destination.
Is registration open for the 2027 Mud Mountain Dam Marathon?
Registration for the 2027 Mud Mountain Dam Marathon has not opened yet.
About the Mud Mountain Dam Marathon
Mud Mountain Dam Marathon is part of the TCMA event family, adding a late-spring marathon and half marathon to the South Puget Sound calendar.
Course
The marathon starts near Mud Mountain Dam and drops toward the McMillin Foothills Bridge on a paved point-to-point route.
Race-day weather
Late May in the South Puget Sound can be cool and damp or surprisingly warm. Wind and rain can shape pacing more than hills.
Past Mud Mountain Dam Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Saturday, May 29, 2027 | Upcoming | — |
| 2026 | Saturday, May 30, 2026 | Completed | Open results |
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Mud Mountain Dam Marathon FAQ
When is the Mud Mountain Dam Marathon?
The 2027 Mud Mountain Dam Marathon is on Saturday, May 29, 2027.
Is registration open for the 2027 Mud Mountain Dam Marathon?
Registration for the 2027 Mud Mountain Dam Marathon has not opened yet. View the official registration details at tcmaevents.com.
Is Mud Mountain Dam Marathon a Boston qualifier?
Yes. Mud Mountain Dam Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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