Agile approaches to training prescription - using monitoring data to optimise load. The prescription of physical training is a challenging task because human performance is affected by a range of interrelated factors. Navigating this complex space is best achieved through an agile planning approach where training prescription is adjusted in response to adaptation and fatigue. This presentation discusses planning frameworks that allow for responsive training prescription. Topic to be covered include iterative planning cycles, autoregulation, non-linear periodisation, velocity based training and the use of GPS.