A sportsbook is a venue where a
gambler can wager on various
sports
Sport is a physical activity or game, often competitive and organized, that maintains or improves physical ability and skills. Sport may provide enjoyment to participants and entertainment to spectators. The number of participants in ...
competitions, such as
golf
Golf is a club-and-ball sport in which players use various Golf club, clubs to hit a Golf ball, ball into a series of holes on a golf course, course in as few strokes as possible.
Golf, unlike most ball games, cannot and does not use a standa ...
,
football
Football is a family of team sports that involve, to varying degrees, kick (football), kicking a football (ball), ball to score a goal (sports), goal. Unqualified, football (word), the word ''football'' generally means the form of football t ...
,
basketball
Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular Basketball court, court, compete with the primary objective of #Shooting, shooting a basketball (ball), basketball (appro ...
,
baseball
Baseball is a bat-and-ball games, bat-and-ball sport played between two team sport, teams of nine players each, taking turns batting (baseball), batting and Fielding (baseball), fielding. The game occurs over the course of several Pitch ...
,
ice hockey
Ice hockey (or simply hockey in North America) is a team sport played on ice skates, usually on an Ice rink, ice skating rink with Ice hockey rink, lines and markings specific to the sport. It belongs to a family of sports called hockey. Tw ...
,
soccer
Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 Football player, players who almost exclusively use their feet to propel a Ball (association football), ball around a rectangular f ...
,
horse racing
Horse racing is an equestrian performance activity, typically involving two or more horses ridden by jockeys (or sometimes driven without riders) over a set distance for competition. It is one of the most ancient of all sports, as its bas ...
,
greyhound racing
Greyhound racing is an organized, competitive sport in which greyhounds are raced around an oval track. The sport originates from Hare coursing, coursing. Track racing uses an artificial lure (usually a form of windsock) that travels ahead of th ...
,
boxing
Boxing is a combat sport and martial art. Taking place in a boxing ring, it involves two people – usually wearing protective equipment, such as boxing glove, protective gloves, hand wraps, and mouthguards – throwing Punch (combat), punch ...
, and
mixed martial arts
Mixed martial arts (MMA) is a full-contact fighting combat sport, sport based on strike (attack), striking and grappling; incorporating techniques from various combat sports from around the world.
In the early 20th century, various inter-s ...
. The method of betting varies with the sport and the type of game. In the US, the
Professional and Amateur Sports Protection Act of 1992 allowed only Nevada, Oregon, Montana, and Delaware to legally wager on sports other than horse racing, greyhound racing, and
jai alai; the law was
ruled unconstitutional on May 14, 2018, freeing states to legalize sports betting at their discretion.
Winning bets are paid when the event finishes, or if not finished, when played long enough to become official; otherwise, all bets are returned. This policy can cause some confusion since there can be a difference between what the sportsbook considers official and what the sports league consider official. Customers should carefully read the sportsbook rules before placing their bets.
The betting volume at sportsbooks varies throughout the year. Bettors have more interest in certain types of sports and increase the money wagered when those sports are in season. Major sporting events that do not follow a specific schedule, like boxing, can create peaks of activity for the sportsbooks.
Nevada

Most of the United States sportsbooks are located in Nevada. In 1949, Nevada allowed bookmakers to accept bets on
horse racing
Horse racing is an equestrian performance activity, typically involving two or more horses ridden by jockeys (or sometimes driven without riders) over a set distance for competition. It is one of the most ancient of all sports, as its bas ...
and
professional sports
In professional sports, as opposed to amateur sports, participants receive payment for their performance. Professionalism in sport has come to the fore through a combination of developments. Mass media and increased leisure have brought larger a ...
.
The first Nevada sportsbooks were called Turf Clubs. They were independent from the casinos and had an informal agreement with the hotels that they would stay out of the casino business as long as the hotels stayed out of the sportsbook business. The sportsbooks had to pay a 10 percent tax so they charged a high
vigorish to gamblers, but they still brought enough business to make a profit.
In 1974 the tax was lowered to 2 percent,
[ in 1983 to 0.25 percent, and in 1975 Frank Rosenthal, who ran the Stardust Casino, convinced legislators to allow sportsbooks in the casinos, and soon nearly all of the casinos added them. The turf clubs were no longer able to compete and eventually all closed.
Nevada casino sportsbooks generally feature betting windows, big screen televisions, interactive betting stations, odds boards (usually computerized), papers with different odds for the day, and places to sit and watch games and races.
Some casinos use third-party operators for their sportsbooks, such as Cantor Gaming, Leroy's, Lucky's, and Club Cal Neva. In 2011, British bookmaker William Hill agreed to buy the Leroy's, the Lucky's, and the Cal Neva chains, which would give it control of 115 of the state's 183 books.
The ]Super Bowl
The Super Bowl is the annual History of the NFL championship, league championship game of the National Football League (NFL) of the United States. It has served as the final game of every NFL season since 1966 NFL season, 1966 (with the excep ...
is the most popular event for the Nevada sportsbooks. They earned $7.2 million on the $99 million wagered on it in 2013
2013 was the first year since 1987 to contain four unique digits (a span of 26 years).
2013 was designated as:
*International Year of Water Cooperation
*International Year of Quinoa
Events
January
* January 5 – 2013 Craig, Alask ...
. Because it attracts many unsophisticated bettors, , the books had made money on 21 of the previous 23 Super Bowls, with an average win of $5.5 million over the previous ten years. The most profitable Super Bowl was in 2005
2005 was designated as the International Year for Sport and Physical Education and the International Year of Microcredit. The beginning of 2005 also marked the end of the International Decade of the World's Indigenous Peoples, Internationa ...
, when the Philadelphia Eagles
The Philadelphia Eagles are a professional American football team based in Philadelphia. The Eagles compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC East, East division. The team plays its ...
covered the spread against the favored New England Patriots, earning the books $15.4 million. The two losses were in 1995—when the San Francisco 49ers
The San Francisco 49ers (also written as the San Francisco Forty-Niners and nicknamed the Niners) are a professional American football team based in the San Francisco Bay Area. The 49ers compete in the National Football League (NFL) as a member ...
defeated the San Diego Chargers
The San Diego Chargers were a professional American football team in the National Football League (NFL). The Chargers played in San Diego, California from 1961 until 2016, before relocating back to the Greater Los Angeles area, where the franch ...
—and 2008—when the favored Patriots lost to the New York Giants, costing the books $2.5 million.
Delaware
In 2009, a bill passed to allow betting on almost every sport. That year, the NFL, MLB, NHL, NBA, and NCAA filed a lawsuit against the state of Delaware
Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
, claiming their sports books were violating federal law. The US Supreme Court
The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all Federal tribunals in the United States, U.S. federal court cases, and over Stat ...
ruled that the law partially violated the federal law, and Delaware was only allowed to offer parlays on NFL games. Delaware's three racetrack casinos— Bally's Dover, Harrington Raceway & Casino, and Delaware Park Racetrack—have sports books. Each sportsbook has multiple televisions, large tote boards and stations for people to wager. During the 2011 NFL season, the three sports books generated $4.4 million in revenue for the state. On June 5, 2018, the casino sportsbooks in Delaware expanded sports betting to single-game and championship wagers on professional and college sports (excluding Delaware college teams) including football, baseball, basketball, hockey, soccer, boxing/MMA, golf, and auto racing.
See also
* Betting exchanges
* Bookmaker
* Point shaving
* Point spread
*Sports betting
Sports betting is the activity of predicting sports results and placing a wager on the outcome.
Sports bettors place their wagers either legally, through a sportsbook or bookmaker (colloquially known as "bookies"), or illegally through priva ...
References
{{Reflist
Sports betting