Rory McIlroy was not the only winner at the British Open on Sunday.
The BBC said McIlroy's father, Gerry, and three of Gerry's friends placed a combined bet of 400 pounds (now $680) in 2004 on McIlroy winning the British Open before he turned 26.
McIlroy was 15 at the time of the wager and is now 25. (Rory McIlroy Wins British Open)
The odds were 500-1, so the syndicate looks to collect 200,000 pounds ($340,000) now that McIlroy has lifted the claret jug. He won by two strokes over Sergio Garcia and Ricky Fowler.