The Amateur Advanced SIX (6) Month HALF IRON Triathlon Training is designed for the Amateur Advanced Athlete who seeks to race the HALF IRON distance; can handle a heavier training load and has the ability to seek an age group win as well as finish within 10% of the overall winning time. Prerequisite training or base mileage is required. DO NOT ATTEMPT this 24-week training without having first developed your base Aerobic System as this Full IRON plan begins with a V02 Interval Training in ...