This 20-week half-marathon 3.1 advanced training plan prepares for a HM in under 1:25 hours with 6 running days/week. Training starts at 34 miles/week and peaks at 50 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.