This revolutionary training method has been embraced by elite runners - with extraordinary results - and now you can do it too. Respected running and fitness expert Matt Fitzgerald explains how the 80/20 running program - in which you do 80 per cent of runs at a lower intensity and just 20 per cent at a higher intensity - is the best change runners of all abilities can make to improve their performance. With a thorough examination of the science and research behind this training method, 80/20 Running is a hands-on guide for runners of all levels with training programs for 5k, 10k, half-marathon and marathon distances. In 80/20 Running you`ll discover how to transform your workouts to avoid burnout. Runs will become more pleasant and less draining You`ll carry less fatigue from one run to the next Your performance will improve in the few high-intensity runs Your fitness levels will reach new heights