The World rankings really confuse me, Azarenka was number 1, won the Australian open, where correct me if I'm wrong Sarina lost in the 1/4's. Now a month later Sarina is now number 1 taking over from Azarenka, in a event Azarenka won???
in each tournament players are given rankings points based on their result and how big the tournament is, but those rankings points are deleted a year later and replaced by the points usually given at the same tournament the next year
so in 2012 vika had a great start, winning in sydney, the aus open and qatar, serena was in part time mode she didnt win anything in aus and i dont think she even partcipated in qatar but later serena took over winning 2 grand slams and the olympics
so fast forward to this year, vika could not make any rankings gains because the best she could do was to defend her points gained in aus and qatar while serena can collect points to add to her portfolio and improve her ranking
vika did pretty well but she pulled out of brisbane, while serena did make those gains winning brisbane and making this qatar final
when it comes around to wimbledon, the us open and the wta championships, serena is the one who has to defend her points and vika can improve