Featuring the proven 80/20 intensity balance described in Matt Fitzgerald's bestselling book 80/20 Running, this marathon Level 0 training plan will provide you with the same workout structure used by the most successful runners in the world. TARGET ATHLETE This level is intended for athletes without a running background attempting their first marathon event. You should be able to comfortably run for at least 30 minutes before you start the plan. STRENGTH TRAINING This plan is paired with an ...