Work out mma fight odds instantly with clear inputs, formula shown and shareable results.
Implied probability is one divided by the decimal odds; the two implied chances sum to more than 100%, and that excess is the bookmaker's overround. Removing the overround proportionally gives the market's true view, which is the benchmark any of your own estimates has to beat.
Implied probability
implied % = 1 / decimal odds x 100
Overround
overround = sum of implied probabilities - 1
implied % = 1 / decimal odds x 100. Implied probability is one divided by the decimal odds; the two implied chances sum to more than 100%, and that excess is the bookmaker's overround.
Removing the overround proportionally gives the market's true view, which is the benchmark any of your own estimates has to beat.
Enter fighter a decimal odds, fighter b decimal odds. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.