This 20-week marathon intermediate training plan prepares for a marathon peak performance with 4 running days/week. Training starts at 31 miles/week and peaks at 45 miles/week. For each run, I provide the exact pace range. Simply set up your individual paces based on your current fitness level with a click of a mouse button. Finally, you can conveniently upload the runs to your Garmin watch. This plan includes free email coach support.