Stop running your easy days too hard and your hard days too easy. The 100-Mile distance requires a massive shift in training philosophy. Success is no longer determined strictly by your VO2 Max, but by your Physiological Durability and Gastrointestinal Trainability. Targeted at Master's athletes (40+) or runners who require more recovery time, this plan abandons the traditional 7-day calendar in favor of a highly effective 9-Day Rolling Microcycle. A standard 7-day week forces you to cram hard ...