World Series of Poker
The World Series of Poker (WSOP) is a series of poker tournaments held annually in Las Vegas and, since 2005, sponsored by Caesars Entertainment Corporation (known as Harrah's Entertainment until 2010). It dates its origins to 1970, when Benny Binion invited seven of the best-known poker players to the Horseshoe Casino for a single tournament, with a set start and stop time, and a winner determined by a secret ballot of the seven players.
World Series of Poker Tournament of Champions
The World Series of Poker Tournament of Champions is an invitational freeroll poker event. Wins in this event do not count as official WSOP bracelets, but the winner receives a large trophy in the shape of the official World Series of Poker logo. In 2010, the WSOP Tournament of Champions returned with a new format more akin to a typical sports league All-Star Event format. 27 players vied for $1 million, with 20 of those players selected by the fans via online vote at the WSOP's website.