I am sorry if this information is given somewhere else, but I do not remember it from the documentation I read at the beginning of the training plan.
I am 2 weeks out from my marathon and have been using Level 1 (Power) to train. This plan only gives 1 week for the taper.
My legs have been feeling very fatigued for the last week and a half of running, and I wonder if I can replace one of my “Foundation Runs” during this week (2nd to last week) and one of my “Foundation Runs” next week (last week/race week) with some biking or swimming. I ask this because my legs feel tired, and I don’t know if a 1-week taper might be enough for them to feel fresh on race day. This change would obviously provide a reduced training load and maybe help me recover? This is my first marathon, so I know very little, but this is what some people recommended to me.
The foundation runs in the plan do contain periodic reminders that athletes should feel free to replace any Foundation Run with a nonimpact cardio cross-training alternative. So, go ahead and do that. I hope it does the trick!