how do you input odds into the kelly criterion 
in order to enter odds into the kelly criterion one first needs to determine w the probability of a favorable return and r the size of the average win divided by the size of the average loss for investing purposes the easiest way to estimate these percentages is from the investor s recent investment returns these figures are then entered into the formulak w 1 w r where k represents the percentage of the investor s bankroll that they should invest 