Stop running your easy days too hard and your hard days too easy. The 100K 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 intermediate runners looking to improve their 100K time, this 26-week plan introduces a critical 5th day of running to build structural resilience and refine specific pacing, while using highly structured active flushes to ...