Amby Burfoot’s KISS (Keep It Simple & Smart) Running Plans are designed primarily for Beginning and Intermediate runners, as well as Comeback runners. They are constructed to help you gain the fitness you need without overtraining or getting injured. They do this through a unique “EnduroPeaking system,” explained below. The name of each plan fully describes the plan’s outline, from beginning to end. For example, Half Marathon 12-4-3 (13-24) "translates" to a “12-week program with 4 runs a ...