The Competitive Masters 40+ - 36 - Week Half IRON Triathlon Training is designed for the Competitive Masters 40+ Athlete who has progressed from the Sprint distance to the Olympic triathlon distance and now desires to race the Half IRON distance, can handle a heavier training load, and has the desire to seek a podium position. To begin this training, you need to be able to complete an Olympic distance triathlon. This is a structured training plan based on % of heart rate & Power, a Garmin ...