I don't know if I'm a serious runner, but I definitely feel like I've gone back to the dark side! Marathoners run for much longer...and triathletes go out and run after doing other things! It's all good, though.

Another thing I told myself today as I was chugging up one of the hills: if I ever get to a point where I find myself saying I HAVE to go run so-and-so miles/hours/whatever, then it's time to reevaluate. I want to sustain this love affair with the trails!