The Kentucky Derby is coming up in early May, and it's time to get excited. On this week's Odd Lots podcast, we talk to Bloomberg editor David Papadopoulos, who in addition to his day job has been betting on horses for a long time. In our discussion, he talked about great gambling scores, where brilliant bettors and cheaters took down gigantic purses by finding ways to beat the odds. He also gave us his take on the challenges of betting on the Derby and other races.