Mud Mountain Dam Marathon (Spring)
Race Day Weather
Cool conditions, cautious pace advised
Runners will face a starting temperature of 39°F, rising to a maximum of 53°F. With a light SW wind at 6 mph and gusts up to 22 mph, the humidity sits at 70%, suggesting a cool but potentially damp race. It's advisable to start conservatively and stay hydrated, especially if rain develops.
This course drops 1,204 ft from start to finish, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 41° and finish around 10:55 AM in 55°; typical start-line conditions say 49° then.
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Race Info
The Mud Mountain Dam Marathon (Spring) is a USATF-certified point-to-point marathon that starts at Mud Mountain Dam near Enumclaw, Washington and finishes at the historic McMillin Bridge, with a net elevation loss of about 1,200 feet. The paved course follows the Foothills Rail Trail and Carbon River through South Prairie and Buckley. It is organized by the Tacoma City Marathon Association and is a Boston Marathon qualifying race with no downhill time-adjustment penalty. A companion Fall edition of the Mud Mountain Dam Marathon runs the same course each September.
