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Kristin Armstrong
Kristin Armstrong is a contributing editor for Runner's World magazine. She is an accomplished runner and has completed several marathons, including the Boston Marathon. She is the...view moreKristin Armstrong is a contributing editor for Runner's World magazine. She is an accomplished runner and has completed several marathons, including the Boston Marathon. She is the author of Happily Ever After: Walking with Peace and Courage through a Year of Divorce.view less