226. Joshua Harris
$3.3 billion * self-made score: source: Private equity age: 52 residence: new york city m.b.a., harvard ’90 a former collegiate wrestler, Harris credits the sport with his success in finance. the Maryland native, who got bs and cs as a high school freshman, earned a spot at the university of Pennsylvania after applying the tenacity he learned on the wrestling mat to the classroom. He cofounded apollo, now the world’s second-largest private equity shop, with leon black and Marc rowan in 1990, then took it public in 2011. He’s used his dividends to buy stakes in the nba’s Philadelphia 76ers and the nhl’s new Jersey devils. He now funds after-school sports programs that combine athletics with tutoring and mentorship for low-income kids. “life is a team sport,” says Harris.