The term was created after Chris Moneymaker, a 27-year-old accountant and amateur poker player from Tennessee, United States, outlasted 838 other players to win the 2003 World Series of Poker (WSOP) Main Event, thereby winning the US$2.5 million prize and the title of World Champion. Moneymaker became the new poster boy for poker, inspiring potential players to believe that "staying at home in front of a computer screen could be more profitable than going to work." His improbable win also started a new era in poker in which "a nobody could topple the feared pros."
According to an article in the Las Vegas Sun, Moneymaker's victory has been credited with launching the "poker craze", along with assistance from televised tournaments with hole-card cameras and the increased popularity of online poker.
Moneymaker gained entrance to the 2003 World Series of Poker by winning a $39 poker satellite tournament at the online poker card room PokerStars. This win gave him a seat at a table in a larger satellite tournament whose grand prize was a seat at the World Series of Poker in Las Vegas, Nevada, which costs $10,000. Moneymaker won that tournament and went on to compete in the 2003 WSOP event.
Now a member of Team PokerStars, Moneymaker's biography on the PokerStars website reads: "His story sparked a tidal wave of interest in poker, a phenomenon that’s been nicknamed the 'Moneymaker Effect' [...] he’ll always be remembered for that epic victory in 2003. It’s a legacy he is clearly proud of and one that’s given him the kind of life all poker players dream of." Moneymaker's story of how an amateur beat some of the best poker players in the world and win a multi-million dollar cash prize is believed to have inspired millions of people to begin playing poker, both online and in card rooms around the world.
At the 2004 World Series of Poker the following year, a semi-professional player, Greg Raymer, also qualified online and went on to win that year's Main Event, along with its $5 million grand prize, against a much larger field of 2,576 players.
- Swains, Howard (2006-03-18). "Moneymaker method can show the way to a fortune—Poker". The Times.
- Poker News, The Moneymaker Effect: Five Years Later, May 23 2008, 
- Goldman, Adam (2004-05-31). "Internet Levels Playing Field for Poker Glory". South Florida Sun-Sentinel.
- Las Vegas Sun, The Biggest Stories in the World Series of Poker. December, 18 2009 .
- "Chris Moneymaker". PokerStars. Retrieved 2009-07-01.