Giancarlo Stanton (Florida Marlins) - 462 feet
There probably isn’t a hitter with as much pure power in the game as Giancarlo “Don’t Call Me Mike” Stanton, the Marlins’ 22-year-old phenom outfielder. Stanton has increased his power totals in all three of his big league seasons; he heads into the break with 19, despite hitting just one homer in April. In this at-bat, Stanton works a full-count against MLB fossil Jamie Moyer, before absolutely crushing a 462-foot grand slam against the left field scoreboard, slightly breaking it in the process. Unfortunately, knee surgery will keep Stanton on the shelf for over a month, costing him his first Home Run Derby.