Category: Ultramarathon

Over one-third of non-finishers in ultramarathons cite gastrointestinal issues as the primary reason for dropping out. Proper nutrition in the days and hours leading up to a 100K race is not a minor detail but a critical component of a successful finish. The right fueling strategy can mean the difference between a triumphant finish and an early DNF.

Most ultra runners fail to meet carbohydrate requirements during competition, often falling short of optimal intake levels and risking fatigue and compromised performance. Learning how to fuel for a 100 mile run is a meticulously planned process that is fundamental for success, endurance, and preventing gastrointestinal issues.

According to ultrarunning coach Jason Koop, an ultramarathon can be thought of as an 'eating contest on the go'. So, do people eat during ultra marathons? Absolutely—and a strategic fueling plan is often the difference between finishing strong and a DNF (Did Not Finish).

Research indicates that elite and faster ultrarunners consistently consume higher hourly carbohydrate intakes during races compared to slower, amateur runners. This mastery of knowing how much carbs for ultra-endurance events is a critical component for sustained energy and optimal performance.