Spring - Mud Mountain Dam Marathon & Half Marathon - Spring - Dam Marathon
Also in this race
These events were grouped as one card in discovery—pick another distance or date without going back.
External Event
Distance
26.2 mi
Pace
All paces
Terrain
Road
Difficulty
All Levels
About this run
Start Planning Now for Your Next Boston Qualifier! Get ready to do the dam thing! Take on a beautiful, fully paved downhill course with no tunnel, no dirt, and no BQ downhill penalty. Full Marathon The Marathon starts at Mud Mountain Dam, high above the Carbon River at an elevation of approximately 1,400 feet. From there, runners will follow a fully paved downhill route through picturesque farmland and forest, tracing the scenic Carbon River before finishing at the McMillin Farm Collective at approximately 200 feet. That's a net elevation loss of about 1,200 feet—a fast, scenic course built for a memorable Boston Qualifier! Half Marathon The Half Marathon starts in the scenic town of South Prairie at approximately 467 feet and follows a gradual downhill route along the paved Foothills Rail Trail. Runners will wind through farmland and forest alongside the Carbon River before finishing at the McMillin Farm Collective, at approximately 128 feet. The course features a net elevation loss of 339 feet. A Finish Line Worth Celebrating! We've got a brand-new finish line just down the road from the McMillin Bridge, and we're making it a destination! After crossing the finish line, stick around and celebrate with: Brewhouse Food trucks Hot & Cold plunge pools It's going to be a finish line to remember! Beautiful course. Fast downhill miles. Fully paved. No tunnel. No dirt. No BQ penalty. There’s no excuse not to do the dam thing!
Typical conditions
For events around May 2027 in Enumclaw, WA, United States: Typical spring conditions in this region — mornings can still be cool; confirm start-time guidance on the official page.
How to prepare
Marathon training typically spans 12–16 weeks with a progressive long run and recovery weeks. Do not invent a course strategy here — check the official site for start waves, cutoffs, and gear rules.
Best marathons to run in 2026Getting there
This event is listed in Enumclaw, WA, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Enumclaw
Also in this race
- May 29, 2027 · 12:00 PM (this one)
- May 29, 2027 · 1:15 PM





