Rebecca: Well… me? (laughs) I'd like to, anyway. Actually, it works perfectly. Marathon training should be enough to finish a 50K race—three weeks after a marathon, another five miles isn't that much more, if you go a little slower. Three weeks is a perfect amount of time to recover. And again, this isn't technically a race. If people want to do half of the run, or just a certain part of it, that's fine. Those who want to gut it out and finish the whole course—great. This race is all about what you want to make it. For me, I definitely plan to run in gray sweats and Chuck Taylors!