Plusz még:

How it works?
A player's ranking is calculated using the best six singles results
plus one quarter (25%) of the best six doubles results. For example:

Player X:
Best 6 Singles results = 950
Best 6 Doubles results = 880
One quarter of 880 = 220
950 + 220 = 1170 = Combined Ranking points total

Points continue to be counted on a 52 week rollover system.