Stop running your easy days too hard and your hard days too easy. Stepping up to the 10K distance requires more than just adding extra miles; it requires specific muscular endurance and the ability to clear lactate efficiently. Designed specifically for beginners and those stepping up to 10K for the first time, this 16-week plan uses the proven 80/20 Endurance methodology to expand your aerobic engine safely. What It Delivers: Exact Zones: A baseline test on Day 1 establishes your precise ...