 Major League Baseball is changing the home run derby format. This year's derby limits the number of pitches each hitter can face in each round, and it won't be head-to-head anymore. There goes another one. Now all eight players will compete against each other. They'll get three minutes or 40 pitches, whichever comes first. And ties will be broken based on distance. The top four advance to the semifinals. Only two make it to the championship round.