A middle aged former time trial cyclist shares his experience in the (sometimes miserable) world of running and the methodical system he used to conquer it. This book shows how he went from a 28 minute 5k to 15:01 and a 2:24 debut marathon. Ideal for time-crunched runners, this guide provides a sustainable pathway to make the most of your training. Includes sample weeks, load management and pacing guidance from the 5k to the marathon with an in-depth look at the theory behind the philosophy. Foreword provided by Marius Bakken, the first and foremost expert of what became known as the 'Norwegian Double Threshold" system, this book looks to how you can apply these principles to your own running, whilst taking your own busy life and schedule into consideration.