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.
2017 US Darts Masters The 2017 US Darts Masters was the inaugural staging of the tournament by the Professional Darts Corporation, as a third entry in the 2017 World Series of Darts. The tournament featured eight North American players who faced eight PDC players, which was held at the Tropicana Las Vegas in Las Vegas, United States from 14–15 July.