Matt Kemp spreads out his home runs across the outfield. He hit 74 dingers since the start of the 2008 season (including the post season), 28 pulled, 24 to center and 22 to the opposite field. The reason for so many home runs not pulled is that Matt likes the ball away for home runs:
On top of that, he also likes to hit pitches that stay up in the strike zone and tail away from him.
That nice bright red cluster represent pitches Matt could tomahawk the other way.
Interestingly, one might think Matt Kemp would do well against Matt Cain. Matt the pitcher works Matt the hitter away, with pitches that stay up and move away. During the three years in question, however, Kemp failed to hit a home run against Cain, going 8 for 29 with two doubles and a triple.