What does YPI mean?
YPI stands for Yearly Planning Instrument. It was originally a large sheet of paper, like a spread sheet, with 52 columns, one for each week of the year, on which a coach could sketch out a periodized training plan. YPI is a software wizard that guides you through the same planning process. It does all the calculations while you focus on the training content. At the end of the YPI planning process, you have a precise training plan in a flexible database, rather than a vague sketch on a piece of paper that is too big to fit comfortably in your binder.