Welcome to your 80/20 polarised Half Iron Cozumel training plan We will use the very latest techniques of polarised training to get you to the finish line in great shape and enjoy your training journey there. This plan is 18 weeks with a general phase of 9 weeks, a specific phase of 7 weeks and a 2 week taper. Cozumel, Mexico features a Sea Swim, Flat Bike and Flat Run. This plan is designed for any triathlete - beginner or experienced who needs a low volume training plan for their half ...