The points offered at each level of tournament is structured in a way where there is overlap in points between each level of tournament. Therefore, the top finishers in one level will earn more points than the bottom finishers of the higher-level tournament. This overlap creates a system of mobility, which allows players to progress up through each level of tournament.
Therefore, players can progress into higher level tournaments by increasing their rankings. And players can improve their rankings by performing well at the level of tournament in which they can currently qualify into. It is the continued ranking improvement which will allow players to progress through the tournament levels to the higher points earning events.