This spreadsheet allows you to start betting on two opposing events such as tennis, basketball, volleyball or Over / Under, target / non target, etc. essentially a 1/2 bet.

The figures in red are the data that can be changed for the calculation. The first table shows us how to share the bet amounts in the two events to obtain the same benefit regardless of the outcome of the meeting. The second table allows instead of inserting the weights (sum values between 0 and 100) to differentiate the benefit. For example, by establishing the first test with a weight of 100, it will have the maximum profit obtainable in case the event to which we attribute the weight 100 is being won, on the contrary, we have a profit equal to 0 if the second selection is successful. . Intermediate values will lead to differentiated benefits and this will also test our skill predictions.