WATCH: Zach Bitter Talks Training, Nutrition and Motivation

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Zach Bitter was not a standout athlete in college. But after graduation he found his way to ultra running, and quickly rose to the top of the field.

In 2015, he ran the 100-mile event at the Desert Solstice Track Invitational. His finishing time of 11:40:55 broke the standing American 100-mile record.

This video explores his path from the track to the trails, and how he stays fueled and focused.

Want to Know What It Takes to Finish at Western States? Just Ask Hellah Sidibe.

Find out what happened when this six-year run streaker and HOKA Global Athlete Ambassador took on an iconic ultramarathon in California's Sierra Nevada