This Kilometer Building Training Plan is designed to help build you from 28.8 Kilometers to 48 Kilometers over a course of 12 weeks. You will slowly build your mileage with the proven 3 weeks “build”/1 week “step back” concept. Including a stepback week in mileage is key to staying injury free as you build your volume across the plan. Use this plan to build your base and get ready for your next race-specific plan. Before starting, you should be able to run 6.4 Kilometers on your regular runs ...