You've probably read about the upcoming, made-for-TV Great White Shark vs. Michael Phelps battle. Well, bite down on this: we're putting Mikey in the game early! Against a dog, though. For reasons. So... will Jack London's fierce canine Buck or dolphin-turned-merman Michael Phelps be better at handing out medals to half-marathon finishers? Join Janelle and Tami in the only corner of the Internet where you could possibly hear this extremely specific argument.