The two largest and most well-known tournaments are the World Poker Tour championship event and the World Series of Poker, both held in Las Vegas, Nevada.
The 2005 World Series of Poker was the first held outside of Binion's Horseshoe Casino, though the final few days of the main event were held in the legendary Benny's Bullpen. Future tournaments have been held at one of the Harrah's Entertainment properties; since 2005, the Rio has served as the host venue.
Arguably the most publicized European tournament is the Poker Million, which began in 2000 on Sky Sports, following on from the success of the Late Night Poker television show.
In addition to these events, there are other major tournaments throughout the year. The World Poker Tour broadcasts a series of open tournaments throughout the U.S. and Caribbean with buy-ins from $5,000 to $25,000, as well as a European event.
The security features of casino chips are numerous. Artwork is of a very high resolution or of photographic quality. Custom color combinations on the chip edge (edge spots) are usually distinctive to a particular casino. UV markings can be made on the inlay. Certain chips incorporate RFID technology, such as those at the new Wynn Casino in Las Vegas. Maker's marks, such as Paulson's top hat and cane, are also difficult to reproduce.
Counterfeit chips are rare. High levels of surveillance, along with staff familiarity with chip design and coloring, make passing fake chips difficult. Casinos, though, are prepared for this situation. According to one report, a Canadian casino removed all chips from the gaming floor and replaced them with new sets with alternative markings, which resulted in the arrest of the attempted counterfeiters. All states require that casinos have a set of chips in reserve with alternate markings, though they may not be required to have exactly the same number of reserve chips as they do on the floor.
Casino chips used in tournaments are usually much cheaper and much simpler in design. Because the chips have no cash value, usually chips are designed with a single color (usually differing in shade or tone from the version on the casino floor), a smaller diameter, and a basic mark on the interior to distinguish denominations; however, at certain events (such as the World Series of Poker or other televised poker), chips approach quality levels of chips on the floor.