This week, we talked about runners Keith Gill and Mariko Yugeta, and we discussed some recent research on the relative benefits of moderate endurance exercise versus high-intensity training. As we often do, we also circled back to several topics such as the new carbon-plated shoes from The North Face, George's ever-changing race schedule, power and running, our book of the quarter, and the common mistake that many endurance athletes make when left to their own devices.