Sportsbook Margin Calculator

Hi everyone,

I’d like to share my first public app which can be useful for sport bettors. It calculates the theoretical margin (%) of a given sportsbook market, based on the bookmaker’s odds (manual odds input needed):

You might wonder why was it needed, since there are quite many margin calculators available (a random example below, from the first page of google search results: Well, there are 2 general issues with basic margin calculators:

  1. They are focusing only on standard market types (e.g. 1X2, Match Winner). My app can be used to define the margin of special market types, like Double Chance.


  1. They usually calculate the overround, instead of the margin. Overround and margin are usually very similar numbers, but they are not the same, as margin = overround / (1 + overround) .

Hope you’ll find it useful. :slightly_smiling_face:


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Hey @mir

Thanks for sharing your app!

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