Football markets, from the price outwards
Football is where most British sportsbook turnover sits, and where the search term that brought you here almost certainly points. Rather than ranking anybody, this page explains what a football price is made of. A three-way match market quotes home, draw and away; convert all three to probabilities and the total comes to more than one hundred per cent, and the excess is the book's margin. Every other football market you will meet — handicaps, totals, scorers, builders — is a variation on that same construction, with the margin placed somewhere slightly different.
Where the margin hides in each market type
Margin is not distributed evenly. In a three-way match market it is usually loaded onto the draw and the outsider, because that is where liability is easiest to manage and where casual money is thinnest. On handicaps and totals it sits in the price on both sides of a line that has been chosen to split opinion. In bet builders it is compounded by correlation between legs. Knowing which of those you are looking at tells you roughly how much friction you are paying before anything kicks off, and it is the only part of the transaction you can read in advance.
The three-way market
Convert each of the three prices into an implied probability and add them up. The amount by which the sum exceeds one hundred per cent is the overround. It is the reason a market that looks like a fair reflection of a match is not one, and comparing that figure between markets is more informative than comparing individual prices.
Handicap lines
A handicap adjusts the score before the market is read. Whole-number lines can end exactly level and refund stakes; quarter lines split a stake between two adjacent lines so half can win while half is returned. The line itself is chosen to split money, not to predict the match.
Totals
A totals market ignores the winner and counts events instead. The counting definition is the part worth reading: whose data feed decides what a corner or a shot on target is, and at what point in the match counting stops. Two apparently identical markets can settle differently on the same fixture for that reason alone.
Same-match builders
Legs from one fixture are not independent — a team that wins comfortably is more likely to have kept a clean sheet and to have had its striker score. Prices for a builder are computed with that dependence included, which is why multiplying the individual legs together gives a number the builder will not offer.
In-play football
Live markets suspend on goals, penalties and red cards, then reopen repriced around the new state. The gap between tapping and acceptance exists because the server has to check the market is still open, and that gap is a feature of every live sportsbook rather than a quirk of one.
Questions readers send us
What is the overround on a football match?
It is the amount by which the implied probabilities of all outcomes exceed one hundred per cent. Add one divided by each decimal price and subtract one from the total. We do not publish a figure for any specific operator because it changes market by market and minute by minute, and a number we quoted today would be misleading by the weekend.
Does a shorter price mean a more likely result?
It means the market is pricing that outcome as more likely, including the margin. Prices are a summary of where money has gone and what the traders think, not a measurement of reality, and they are frequently wrong in both directions. Nothing about a short price makes an outcome safe.
Which football markets settle on ninety minutes only?
Most standard match markets settle on normal time including stoppage time, and exclude extra time and penalties. This catches people out in cup competitions every season. The rule that applies is the operator's own settlement rulebook for that market, which is worth reading once rather than assuming.
Why did my in-play bet get rejected?
Usually because the market suspended between your tap and the server receiving it, or because the price moved and your slip was set to reject changes. Both are ordinary behaviour in live markets. It is not evidence of anything targeted at you, and it happens to everybody betting live on every book.
