This Level 1 Maintenance plan will help athletes transition from one training plan to another and can serve as a pre-season base training plan. Featuring the proven 80/20 intensity balance described in Matt Fitzgerald's bestselling book 80/20 Running, this Run Maintenance training plan will provide you with the same workout structure used by the most successful runners in the world. TARGET ATHLETE This plan is intended for runners of all abilities, who can already comfortably run for 35 ...