I can't speak for anyone else but for me this is the time of year I normally try to crank my mileage back up anyway so this challenge fit in perfectly with that. What I am doing now is certainly not what what I did from Oct - Nov but that was right after a marathon. I would be picking up the volume now regardless of the challenge. It's just that the challenge helps a little on the one or two mornings that I really don't feel like getting in run.