It appears as though there will consistently be over 6,000 entrants in the annual
WSOP main event. These are players who have qualified through a number of other events as well as some of the very best players in the world. For some, the fact that the first WSOP started with just six people may be a bit surprising.
It all started with Benny Binion, the owner of the Horseshoe Casino, inviting six of the world's very best players to play together back in 1970. At that time, the events being held included every possible type of poker, including razz, seven-card, low-ball, and hold 'em. As the WSOP evolved, the main event began revolving more and more around the most popular form of poker, Texas Hold 'Em.
Entries into the WSOP continued to trickle in, and in the early 1980s, you saw several dozen players. However, it was the introduction of satellite tournaments, which allowed players to win their way into events that really opened the floodgates. By the late 1980s, there were more than 2,000 entrants.
Satellite tournaments continued to contribute to the WSOP player pool, but in a far more significant way as online poker was introduced. Online poker satellites into the WSOP events led to thousands of players consistently registering, with the record of 8,773 players being set in 2006. After this peak, additional rules were added to satellites for online poker, reducing the number of players.
From that point forward, the WSOP has seen the number of registrants hover around 6,500 from year to year. You've seen everything from professional poker players who know the tournament backward and forward to newer players like Joe Cada, who walked away as the 2009 Main Event champion. The WSOP consistently draws the best and brightest and is the most popular televised poker event.