I started off this programme running on a grassy riverbank and I just couldn't do it. It was painful to run because of all the dips. I started to make use of my gym membership by doing the runs on a treadmill. I can't get over how much easier it is.
I then went to repeat week 3 on concrete and I couldn't do it again. I just can't do it outside.
Why can I do it indoors on a treadmill but not outside? I feel like I am cheating!