The recommended starting point for each Training Level is as follows:  Level 1: 10-15 miles for half marathoners Calendar Mileage Range: 15-25 Level 2: 15-25 miles for half marathoners  Calendar Mileage Range: 19-31 Level 3: 25-35 miles for half marathoners Calendar Mileage Range: 23-38   Evaluate your starting point or your “current” level of fitness to start your mileage build-up during the training cycle. Three Training Levels are available to choose from based on the average weekly mileage you have run comfortably during the month before the start of the training program. There are 5 to 6 run days scheduled based on your chosen level.  Calendars outline the training at each level.