10. Robert Kraft: $6.6 billion (New England Patriots, New England Revolution)
Robert Kraft is the owner of the New England Patriots and the New England Revolution, both of which play their games in Gillette Stadium in Foxborough, Massachusetts. Kraft is a lifelong Patriots fan that did everything he could to purchase the team. Since taking over the franchise, the Patriots have been one of the most successful teams in professional sports winning five Super Bowls.