Under-25 aces

Anthony Kim, 23

He dominated as a junior and in college, created buzz when he finished second at the 2006 Valero Texas Open in his first Tour start, then made it through all three stages of Q school that December. After admittedly slacking off in his rookie year in 2007, Kim broke out with a five-stroke victory at the Wachovia Championship in May. Mark O'Meara, Kim's teammate at the Merrill Lynch Shootout last December, said: "I told him, 'I'm not an expert, but I've watched a lot and I've seen a lot, and you have as much talent or more talent than any other player I've seen besides Tiger, and I believe that.'"