Sportsbook at Wynn Las Vegas, during Super Bowl XLII, February 2008
A sportsbook (sometimes abbreviated as book) or a race and sports book is a place where a gambler can wager on various sports competitions, including football, basketball, baseball, hockey, soccer, horse racing and boxing. The method of betting varies with the [...]

Sports betting systems refers to a set of events that when combined for a particular game for a particular sport represents a profitable betting scenario. Since sports betting involves humans, there is no deterministic edge to the house or the gambler. Systems allow the gambler to have an edge.
Sportsbooks use systems [...]

Soft lines is a betting terminology representing betting odds that have been poorly researched by sportsbooks.
Handicappers commonly use this term to emphasize the value of their play. Since handicappers can focus on a smaller subset of all the possible games, they have the chance to identify soft lines. Soft lines usually [...]

In gambling, a proposition bet (also called a prop bet) is any bet made for a sum of money that involves a proposition. An example is the professional poker player, Howard “The Professor” Lederer, a vegetarian who wagered $10,000 with a fellow gambler that he could eat a cheeseburger. He did it [...]

A pick 6 is a type of wager offered by horse racing tracks. It requires bettors to select the winners of six consecutive races. Because of the great difficulty in picking six straight winners, plus the number of betting interests involved, payoffs for successful wagers are quite high, sometimes in the [...]

A parlay is a single bet that links together two or more individual wagers and is dependent on all of those wagers winning together. The benefit of the parlay is that there are much higher payoffs than placing each individual bet separately since the difficulty of hitting it is much higher. If [...]

An over-under or over/under bet is a wager in which a sportsbook will predict a number for a statistic in a given game (usually the combined score of the two teams), and bettors wager that the actual number in the game will be either higher or lower than that number. For example, [...]

In probability theory and statistics the odds in favor of an event or a proposition are the quantity p / (1 − p), where p is the probability of the event or proposition. The logarithm of the odds is the logit of the probability.Odds have long been the standard way of representing [...]

The Nassau bet is a type of bet in golf that is essentially three separate bets. Money is wagered on the best score in the front 9, back 9, and total 18 holes. The Nassau is one of golf’s most classic and most popular wagers.The amount of the bet is established — [...]

Kelly gambling is an application of information theory to gambling and (with some ethical and legal reservations) investing. An important but simple relation exists between the amount of side information a gambler obtains and the expected exponential growth of his capital (Kelly). The so-called equation of ill-gotten gains can be expressed [...]

Fixed Odds Betting Terminals (FOBTs) are computerised machines normally found in betting shops which allow players to bet on the outcome of various games and events with Fixed Odds. They were introduced to UK shops in 2002, shortly after the abolition of the Betting Tax in October 2001.The most commonly played [...]

An Exacta is a type of bet placed in horse racing which requires the bettor to select the 1st and 2nd place finishers of the race in the correct order.This is more difficult than selecting only the winner of the race, and the resulting payouts for correctly placing an exacta bet are [...]

In gambling a Dutch book or lock is a set of odds and bets which guarantees a profit, no matter what the outcome of the gamble. It is associated with probabilities implied by the odds not being coherent.In economics a Dutch book usually refers to a sequence of trades that would leave [...]

A daily double is a type of wager offered by horse and dog racing tracks. It requires bettors to select the winners of two consecutive races. Because of the increased difficulty of picking two straight winners, wining daily double bets often pay off at relatively high odds.The daily double was the first [...]

A Calcutta Auction is an open auction held in conjunction with a golf tournament, horse race, or similar contest with multiple entrants. It is popular in Backgammon and is currently enjoying rising popularity for NCAA Basketball pools during March Madness.Bidding for each contestant begins in random order, with only one contestant [...]

Point shaving, in organized sports, is a type of match fixing where the perpetrators try to prevent a team from covering a published point spread. Unlike other forms of match fixing, sports betting invariably motivates point shaving. A point shaving scheme generally involves a sports gambler and one or more players [...]

An Asian Handicap is a sports betting term used to describe spread betting in football (soccer). Described as Asian because of its Eastern origins, the phrase has little else to do with the region. This form of soccer betting has gained increased popularity over the last few years and is now offered [...]

Betting strategies or betting systems are approaches to gambling intended to increase the odds of winning.
Independent Events
The following betting strategies have been recorded as being applied to games which operate on independent events. For such games, the odds of a particular outcome are identical for every bet played. No such strategy can [...]

A bar bet is a bet made between two patrons at a bar. Bar bets can range from wagers about little-known trivia, such as obscure historical facts, to feats of skill and strength. Some bar bets are intended to trick the other party into losing.
Famous bar bets

The annual Midnight Sun baseball game [...]

In gambling, a Bank Job is a term for putting all of your money on a particular betting option, for instance “Yankees to beat the Kansas City Royals is a Bank Job”
It is often mocked by statements claiming people have “Multiple Banks” on a particular bet, for instance “I have 4 Banks [...]