The real S̶l̶i̶m̶ ̶S̶h̶a̶d̶y̶ No. 1

9.01.

B. The South African Airways ATP Rankings (singles) and the ATP Doubles Rankings are the objective merit-based method used for determining qualification for entry and seeding in all tournaments for both singles and doubles, except as modified for the ATP World Tour Team Championship and Barclays ATP World Tour Finals (singles or doubles).

E. The South African Airways ATP Rankings (singles) or ATP Doubles Rankings period is the immediate past 52 weeks, except for:
* Barclays ATP World Tour Finals, singles and doubles, which is dropped on the Monday following the last ATP World Tour event of the following year.
* Futures Series tournaments that are only entered into the system on the second Monday following the tournament’s week.
Once entered, all tournaments, except for the Barclays ATP World Tour Finals, remain in the system for 52 consecutive weeks.

- The 2012 ATP Official Rulebook

XIV. A.

1. The worldwide computer ranking for women’s Professional Tennis (“WTA Rankings”) reflect a player’s performance in tournament play and determine player acceptances and seeding for all Tournaments.

4. a. The ranking system is a 52-week, cumulative system in which the number of Tournament results comprising a player’s WTA Ranking is capped at 16 Tournaments for singles and 11 Tournaments for doubles.
The results used to determine a player’s WTA Ranking shall be those yielding the highest ranking points during a rolling, 52-week period, and must include a player’s ranking points from the Grand Slams, Premier Mandatory Tournaments and the Premier WTAChampionships plus the best two (2) Premier 5 Tournament results for Top 10 Players.

- The 2012 WTA Official Rulebook

Just so we're all clear on this.