Mackenzie began running in jr. high, but focused on other activities, ranging from tae kwon do in high school to sailing in college. She returned back to running at the end of college, and hasn't stopped since. Her appreciation for running comes from the simple recognition of where your two feet can take you. Mackenzie focuses on training for both the physical and mental benefits. Thus far her two feet (and many pairs of running shoes) have taken her through Boston, around Paris, up to the top of Mt. Whitney, across many miles of Alpine trails, and all over Yosemite National Park.