Once a match is finished, you can enter the result of the game through the booking grid. In the result section, you can enter the points of that match.
To change the quantity of points a player/team win or loose after a match, go to the menu System -> Additionals -> Sports.
There you can select the sport you want to configure, just click on the edit button
Then, in the section 'Matches parameters', you can define those fixed scores for the matches, that will automatically modify the ranking of your center.
To check the current ranking go to Planning-> Ranking -> Ranking
If you have a ranking already in a different platform or document, you can also import the entries to the matchpoint ranking using an excel file.