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Tolt Pipeline Fat-Ass 50K

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No official race (that we know of) runs on the Tolt Pipeline trail. Instead, we are organizing the Annual unofficial "Fat-Ass" style 50K, Marathon & Half-Marathon and 1.5 mile challenge on the east section of the Tolt Pipeline Trail. Enjoy all the beauty the Sammamish River valley has to offer. The course is a half-marathon distance. Do it twice for a marathon OR two times plus an out and back on the Sammamish River Trail for the 50K. Both the 50K and Marathon will have 2,600 feet of gain and you get to run up Heart Attack Hill twice! For those of you looking for something short and quick, run the 1.5 mile Heart Attack Hill Challenge. Let see who can get up that hill the fastest! Set an FKT for these courses or win your Strava segment, if you are into that kinda thing. Or just come out for the fun of it all!

How to enter the Tolt Pipeline Fat-Ass 50K

  1. Marathon

    Run 26.2mi
    Event passed
  2. Half Marathon

    Run 13.1mi
    Event passed
  3. 50K

    Run 50km
    Event passed
  4. 1.5 Miler

    Run 1.5mi
    Event passed

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Tolt Pipeline Fat-Ass 50K weather forecast

Partly cloudy throughout the day.

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