I'm currently in the middle of wk7 and due to do r3 tomorrow. Now that the evenings are starting to draw in, I've had to make the decision to do some of my runs on the treadmill at the gym. I would not feel safe running in the dark even with a head torch. I'll be running at least one run a week outside at the weekend when I can get out in the day.
What is the opinion on treadmill running? Easier, more difficult or the same?