The output probability describes estimated probability of an exit of a sport vent from each individual bookmaker differently. For the computation of the output probability the ratios must be settled around the disbursement ratio of the bookmaker. For this the reciprocal value of a ratio is multiplied by the disbursement ratio. Exemplary computation with the play Hanover 96,1.7,3.5,4.8 1. FC Nuremberg and a disbursement ratio of 92,42%. Probability home victory Hanover 96 = 1.7 x disbursement ratio = 1/1.7 * 92.42% = 55,4%. Probability undecided = 1/3.5 * 92.42% = 26.40 %. Probability victorious away team 1. FC Nuremberg = 1/4.8 * 92.42% = 19,25%. The total probability is rounded naturally 100%. The accepted probabilities of the exits are not however only based from statistic factors, but consider further factors of influence such as form, loss to players etc. as well.