Half Marathon Calendar USA
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A club catering to the half marathon community with multiple challenges for members to choose from, including the 50 States Half Marathon Challenge, 50 States Endurance Challenge, 100 Half Marathons Challenge, 500 Endurance, 7 Continents, etc. Fabulous Award Choices, Annual Awards Meet Up (in a new state each year), dinner meet ups,  and lots of Discounts.