Kammala jumla mai zuwa: James Corwin Mackey (an haife shi a ranar 25 ga Fabrairu, 1986) dan wasan karta ne na Amurka. Ya halarci Jami'ar Missouri kafin ya fita daga shirin pre-med don neman aiki a cikin wasan karta. A shekara ta 2007, yana da shekaru 21 da watanni 4, Mackey ya zama na uku mafi ƙarancin ɗan wasan karta a lokacin da ya taɓa cin nasarar munduwa ta World Series of Poker, lokacin da ya lashe taron, bayan Steve Billirakis (ya sami munduwa a farkon taron gasar ta 2007) da Jeff Madsen (ya sami munduwa a gasar ta 2007).
Gasar 2006).