I'm sitting on my butt today doing a whole lot of nothing. That's what my coach wants me to do, and who am I to argue? This sit-on-my-butt rest day has been prescribed because I have a half Marathon race coming up on Saturday. I'm about 6 weeks out from my marathon, so I thought I'd try a half marathon to practice my pacing and simply to see where I'm at physically. After all, I haven't toed a