This 8-week base/maintenance plan is perfect for when you are in between training plans or returning to training after a short lay off. Use it to build your base and get ready for your next race-specific plan. This Plan is designed for runners that are focused on racing the Half Marathon-Ultra Distance. This plan is perfect for transitioning into after a base plan. Before starting, you should be able to run 45-60 minutes on your regular runs and at least 90 minutes on your long runs. The ...