Fixed-odds betting – Wikipedia

It is customary with fixed-odds gambling to be aware of the odds at the time of their position of the bet (the“live cost“), but the category also includes wagers whose cost is determined only when the race or match starts (the“starting prices“). It is excellent for bookmakers to price/mark a book like the net outcome will be in their favor: the amount of the probabilities quoted for all results are going to be in excess of 100 percent. The surplus over 100 percent (or overround) represents profit to the bookmaker in the event of a balanced/even publication. In the case of an publication that is imbalanced, the bookmaker might have to pay out winnings than , what is staked or might bring in greater than mathematically. An imbalanced book may arise since there’s no way for a bookmaker to know the true probabilities for the outcome of contests left to individual effort or to forecast the bets which will be attracted from other people by fixed chances compiled predicated on personal view and comprehension.
Dutch novels against bookmakers and exchanges and the chance of fixed-odds arbitrage actions has enlarged significantly with the advent of Internet and bet exchange betting. Betting exchanges in particular behave like a stock market, allowing the odds to be put in the plan of trading between players that are individual, usually resulting in lent odds which are reasonably close to the“true chances.“

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