No-vig calculator
Remove the bookmaker margin from 1X2 prices.Change any price and the results update.
Inputs are kept in the URL so you can share the result.
How it works
Each price has an implied probability: 1 divided by the price. For the three results of a match these add up to more than 100%, and the part above 100% is the bookmaker margin.
Worked example. Home 2.30, draw 3.50 and away 3.00 imply 43.5%, 28.6% and 33.3%: 105.4% in all, a margin of 5.4%. Divided by 105.4% they give the fair probabilities 41.3%, 27.1% and 31.6%, and 1 divided by each gives the fair prices 2.42, 3.69 and 3.16.
The margin is shared out in proportion to each price. A bookmaker does not always share it that way, so the fair prices are an estimate.
FAQ
What is the bookmaker margin?
It is the bookmaker's built-in edge: the prices pay out less than the true chances would. The lower the margin, the better the prices are for you.
Can the margin be below zero?
Yes, when the three prices together pay out more than they take in, for example the best price of each result taken from different places. The calculator then shows a margin below zero.