The concept is easy to imagine, but what would it look like as a function?

A sample size would need to be determined, then a step run over that sample would give a table of N vertical sums... but how many? One per ball of the game? A fixed number from 3 to 10?

You would need, for example, 5 number sums in a table, but also the sum of the last 4 games... in the framework, that sum would be placed on a stats card on the screen after the table, along with average sums for the sample. The thought process being average sum of each 5 in the sample minus the last 4 is your pick.

Time will be needed to get an idea of the sum size and sample size. But that is the basic premise for a start.