Boulderthon 10K
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Race Info
The Boulderthon 10K is a 6.2 mile road race through downtown Boulder and the flat east side of town. It starts at 19th and Pearl Street, follows Pearl Street and Pearl Parkway east toward Cottonwood Lake and returns the same way. The finish is on the Pearl Street Mall. The course is paved and mostly flat to gently rolling, at roughly 5,300 feet of elevation.
