What is the ranking structure and formula in 2011?
A. In 2011, any player who finished in the 2010 year-end Top 30 will be required to compete in four Grand Slam tournaments and eight ATP World Tour Masters 1000 tournaments. In addition, the Best 4 ATP World Tour 500 and Best 2 other events (ATP World Tour 250 and Challengers) will be counted towards a player’s ranking. All direct acceptance players at the time of the entry deadline who do not play will receive a 0-pointer in their ranking. A player who is out of competition for 30 or more days, due to a verified injury, will not receive any penalties. For other players outside the Top 30, the ranking structure that applies, IF QUALIFIED, will be four Grand Slam tournaments and eight ATP World Tour Masters 1000 tournaments. The Best 6 with up to 4 ATP World Tour 500 results will also be counted towards the ranking. If a player is not a Direct Acceptance and did not play a Grand Slam or Masters 1000 tournament, he can substitute with ATP World Tour 250 and/or Challengers. The eight play
