My Hero of 2010: World Richest #8 Eike Batista

8) Eike Batista

Net Worth: $27 billion

Source: Mining, oil

Residence: Brazil

• Vowing to become world's richest man--and he may be on his way. This year's biggest gainer added $19.5 billion to his personal balance sheet.

• Son of Brazil's revered former mining minister who presided over mining giant Companhia Vale do Rio Doce got his start in gold trading and mining. Insists Dad didn't help: "All my businesses started from zero. My father was a problem for me because he never let me near Vale."

• Made a pile in resources and other services, but two-thirds of his fortune comes from relatively new source, OGX Petróleo e Gas Participações, the oil-and-gas exploration company he founded in 2007 and took public a year later.

• Police raided his home in 2008, alleging Batista smuggled gold and unfairly influenced the acquisition of a railroad. He denied all wrongdoing, emerged unscathed.

• Onetime champion offshore powerboat racer.

• Formerly married to Playboy cover girl.

• Provided financing to Rio de Janeiro's Olympic committee, helping the city win its bid for 2016 Olympic Games.