This 20-week marathon 3.3 advanced training plan prepares for a marathon in under 2:40 hours with 7 running days/week. Training starts at 88 km/week and peaks at 125 km/week. For each run, I provide the exact pace range. Simply set up your training zones based on your fitness level with a click of a mouse button. • Upload all workouts to your running watch • Switch plan level, free within 14 days • Free email coach support