Spirit of the Osage 50K / 20K Endurance Run

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This is a hilly loop course. The 50K has a first loop of 11.7 miles, then followed by two 9.7 mile loops. The 20K is one loop. Each race will have a short out and back. The 50K does the out and back only once. The course is an equal mix of paved and gravel roads. The roads will not be closed, but traffic is very light.

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