What tournament is annually held in Las Vegas since the 1970s?
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.
1974 Virginia Slims Championships The 1974 Virginia Slims Championships were the third season-ending WTA Tour Championships, the annual tennis tournament for the best female tennis players in singles on the 1974 Virginia Slims circuit. It was held from October 14–19, in Los Angeles, United States. The 16 best performers of the circuit qualified for the championship as well as the four best doubles teams. Third-seeded Evonne Goolagong won the singles title and the accompanying $32,000 first prize.