The rankings are calculated each week based on finishing positions in individual tournaments (i.e. not pairs or team events) over a "rolling" two-year period with a maximum of 52 tournaments and a minimum divisor of 40 events.
The rankings are computed each week based on finishing positions in individual competitions (i.e. not doubles or group events) over a "rolling" two-year span with a maximum of 52 tournaments and a minimum divisor of 40 events.