Stop running your easy days too hard and your hard days too easy. Targeted at intermediate runners looking to improve their 10K time, this 16-week plan introduces a critical 5th day of running to build structural resilience and expand VO2 Max-specific pacing. It also transitions your weekend efforts into Endurance Fast Finishes (EFF) to teach your body to hold a strong pace under heavy aerobic fatigue, a key component for 10K mastery. What It Delivers: Exact Zones: A baseline test on Day 1 ...