2011 ATP tournaments distribution map (in each country) :
  10 or more
  5 or more
  4
  3
  2
  1
Data : Grand Slams, Masters 1000, ATP World Tour Finals, ATP 500 Series, ATP 250 Series.
This file was derived from: BlankMap-World6.svg
BlankMap-World6.svg: Canuckguy (talk) and many others (see File history)
Derivative work: Fred053