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  2. Mathematics of bookmaking - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_bookmaking

    In gambling parlance, making a book is the practice of laying bets on the various possible outcomes of a single event. The phrase originates from the practice of recording such wagers in a hard-bound ledger (the 'book') and gives the English language the term bookmaker for the person laying the bets and thus 'making the book'.

  3. Advantage gambling - Wikipedia

    en.wikipedia.org/wiki/Advantage_gambling

    Bookmaker B has the Jets as just a 2-point favorite. The advantage player may bet the Bills +4 with Book A and then the Jets -2 with Book B. If the Jets win by 3, the advantage player collects on both bets. If the Jets win by either 2 or 4, the advantage player collects on one winning bet and the other "push."

  4. Parlay - Wikipedia

    en.wikipedia.org/wiki/Parlay

    Parlay bets are paid out at odds higher than the typical single game bet, but still below the "true" odds. For instance, a common two-team NFL parlay based entirely on the spread generally has a payout of 2.64:1. In reality, however, if one assumes that each single game bet is 50/50, the true payout should instead be 3:1.

  5. Martingale (betting system) - Wikipedia

    en.wikipedia.org/wiki/Martingale_(betting_system)

    Increasing the size of wager for each round per the martingale system only serves to increase the average loss. Suppose a gambler has a 63-unit gambling bankroll. The gambler might bet 1 unit on the first spin. On each loss, the bet is doubled. Thus, taking k as the number of preceding consecutive losses, the player will always bet 2 k units.

  6. Financial betting - Wikipedia

    en.wikipedia.org/wiki/Financial_betting

    Maximum potential pay-off of the wager is known when the bet is taken and as a corollary risk is known beforehand by being limited to the initial stake. Financial betting instruments are a type of digital option. The outcome of the wager at settlement is binary, that is, either a win or a loss.

  7. Sports betting - Wikipedia

    en.wikipedia.org/wiki/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 bookmaker/sportsbook, or illegally through privately run enterprises referred to as "bookies". The term "book" is a reference to the books used by wage brokers to track wagers, payouts, and ...

  8. Glossary of bets offered by UK bookmakers - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_bets_offered...

    A combination tricast is a wager on three or more named selections in order to choose three selections to finish 1st, 2nd and 3rd in the correct order in a specified event. [1] Requires multiple unit stakes given by n(n − 1) (n − 2) where n is the number of selections. E.g. 3 selections, 6 bets; 4 selections, 24 bets; 5 selections, 60 bets ...

  9. Three Card Poker - Wikipedia

    en.wikipedia.org/wiki/Three_Card_Poker

    If the player hand loses, both the ante and play wagers are lost. If the player hand wins, both the ante and play wagers are paid 1 to 1. If the hands are tied, then there is no action on either wager. [6] Additional optional bets are offered. The Pair Plus wager is a bet that the player's hand will be a pair or better.