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Gambling is the wagering of something of value on a random event with the intent of winning something else of value, where instances of strategy are discounted. Gambling thus requires three elements to be present: consideration, risk (chance), and a prize. The outcome of the wager is often immediate, such as a single roll of dice, a spin of a roulette wheel, or a horse crossing the finish line, but longer time frames are also common, allowing wagers on the outcome of a future sports contest or even an entire sports season.
Parimutuel betting or pool betting is a betting system in which all bets of a particular type are placed together in a pool; taxes and the "house-take" or "vigorish" are deducted, and payoff odds are calculated by sharing the pool among all winning bets. In some countries it is known as the tote after the totalisator, which calculates and displays bets already made.
Spread betting is any of various types of wagering on the outcome of an event where the pay-off is based on the accuracy of the wager, rather than a simple "win or lose" outcome, such as fixed-odds betting or parimutuel betting.
Fixed-odds betting is a form of gambling where individuals place bets on the outcome of an event, such as sports matches or horse races, at predetermined odds. In fixed-odds betting, the odds are fixed and determined at the time of placing the bet. These odds reflect the likelihood of a particular outcome occurring. If the bettor's prediction is correct, they receive a payout based on the fixed odds. This means that the potential winnings are known at the time of placing the bet, regardless of any changes in the odds leading up to the event.
In probability theory, odds provide a measure of the likelihood of a particular outcome. When specific events are equally likely, odds are calculated as the ratio of the number of events that produce that outcome to the number that do not. Odds are commonly used in gambling and statistics.
In organized sports, point shaving is a type of match fixing where the perpetrators try to change the final score of a game without changing who wins. This is typically done by players colluding with gamblers to prevent a team from covering a published point spread, where gamblers bet on the margin of victory. The practice of shaving points is illegal in some countries, and stiff penalties are imposed for those caught and convicted, including jail time.
Vigorish is the fee charged by a bookmaker for accepting a gambler's wager. In American English, it can also refer to the interest owed a loanshark in consideration for credit. The term came to English usage via Yiddish slang which was itself a loanword from Russian.
Sport Select is a group of sports betting games offered by Canada's lottery corporations. In Quebec, the program is known as Pari sportif; in Ontario and Atlantic Canada, it is known as Pro-Line while in British Columbia, it is known as Sports Action. However, the rules for the games are similar in all provinces. Initially created to offer betting primarily on the North American major professional sports leagues, Sport Select has expanded to offer betting on competitions such as the English Premier League and college sports.
Sports betting is the activity of predicting sports results and placing a wager on the outcome.
Handicapping, in sport and games, is the practice of assigning advantage through scoring compensation or other advantage given to different contestants to equalize the chances of winning. The word also applies to the various methods by which the advantage is calculated. In principle, a more experienced participant is disadvantaged, or a less experienced or capable participant is advantaged, in order to make it possible for the less experienced participant to win whilst maintaining fairness. Handicapping is used in scoring many games and competitive sports, including go, shogi, chess, croquet, golf, bowling, polo, basketball, and track and field events. Handicap races are common in clubs which encourage all levels of participants, such as swimming or in cycling clubs and sailing clubs, or which allow participants with a variety of standards of equipment. Often races, contests or tournaments where this practice is competitively employed are known as Handicaps.
In the United States, a sportsbook or a race and sports book is a place where a gambler can wager on various sports competitions, including golf, football, basketball, baseball, ice hockey, soccer, horse racing, greyhound racing, boxing, and mixed martial arts. 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.
A sucker bet is a gambling wager in which the expected return does not reflect the odds of winning, and is significantly lower. For example, the chances of correctly guessing the order of the final three cards in a game of Faro is usually 1 in 6, yet the bet only pays 4:1 or 5:1. The complexity of the game can disguise the nature of the odds, so that the player does not realise that they are taking a sucker bet.
Asian handicap betting is a form of betting on football in which teams are handicapped according to their form so that a stronger team must win by more goals for a bet on them to win. The system originated in Indonesia and gained popularity in the early 21st century. It is a form of spread betting. Handicaps typically range from one-quarter goal to several goals, in increments of half- or even quarter-goals.
A parlay, accumulator, combo bet, or multi is a single bet that links together two or more individual wagers, usually seen in sports betting. Winning the parlay is dependent on all of those wagers winning together. If any of the bets in the parlay lose, the entire parlay loses. If any of the plays in the parlay ties, or "pushes", the parlay reverts to a lower number of wagers with the payout odds reducing accordingly. Parlay bets are high-risk, high-reward; linking the possibilities drastically reduces the chance of the bet paying off overall. The benefit of the parlay is that there are much higher pay-offs, although as usual, casinos and bookkeepers offering parlays often exploit the poor calculation of gamblers by not increasing the pay-out as much as the odds truly demand, with the effect of the house edge increasing in parlays.
Sports betting systems are sets of events that when combined for a particular game for a particular sport represent a profitable betting scenario. Since sports betting involves humans, there is no deterministic edge to the house or the gambler. Systems supposedly allow the gambler to have an edge or an advantage.
The Delaware Lottery is run by the government of Delaware. Its creation was authorized by the state legislature on May 31, 1974. Its "traditional" games include Play 3, Play 4, Multi-Win Lotto, Lucky For Life, Lotto America, Mega Millions, and Powerball. Delaware also offers Keno, sports betting, and video lottery.
The 1978–79 Boston College basketball point-shaving scandal involved a scheme in which members of the American Mafia recruited and bribed several Boston College Eagles men's basketball players to ensure the team would not win by the required margin or win by the required margin, allowing gamblers in the know to place wagers against that team and win.
Advantage gambling, or advantage play, refers to legal methods used to gain an advantage while gambling, in contrast to cheating. The term usually refers to house-banked casino games, but can also refer to games played against other players, such as poker. Someone who practices advantage gambling is often referred to as an advantage player, or AP. Unlike cheating, which is by definition illegal, advantage play exploits innate characteristics of a particular game to give the player an advantage relative to the house or other players. While not illegal, advantage play is often discouraged and some advantage players may be banned by certain casinos.
A progressive parlay is a joint wager on multiple events, for example team sports or horse races. Generally a progressive parlay involves a joint wager on four to twelve separate events. Should all the selected bets win, the bettor receives a relatively large payout, because of the sizable odds against this happening. However, unlike a regular parlay, if some of the individual bets lose, but most win, the bettor still wins, although with a much smaller payout. Several sites use a schedule where the bettor can lose one bet on a 4-6 event progressive parlay, can lose up to two bets on a 7-9 event progressive parlay, and up to three bets on a 10-12 event progressive parlay.
Betting on horse racing or horse betting commonly occurs at many horse races. Modern horse betting started in Great Britain in the early 1600s during the reign of King James I. Gamblers can stake money on the final placement of the horses taking part in a race. Gambling on horses is, however, prohibited at some racetracks. For example, because of a law passed in 1951, betting is illegal in Springdale Race Course, home of the nationally renowned Toronto-Dominion Bank Carolina Cup and Colonial Cup Steeplechase in Camden, South Carolina.