|15/01/14||M Rybarikova & S Voegele||Australian Open||R1||Lost|
|02/04/12||G Voskoboeva||WTA Tour Family Circle Cup||R1||Lost|
|20/03/12||E Makarova||WTA Sony Ericsson Open||R1||Lost|
|08/03/12||G Dulko||WTA BNP Paribas Open||R1||Lost|
|01/03/12||O Rogowska||WTA BMW Malaysian Open||R2||Lost|
|27/02/12||K Mladenovic||WTA BMW Malaysian Open||R1||Won|
WATCH: Federer's 14 years at No 1
From fashion to technology and everything in between, a lot has changed since the first time Roger Federer claimed the No 1 ATP Ranking in 2004.
VOTE: Who is the G.O.A.T?
Roger Federer claimed a 20th Grand Slam title at the Australian Open and then became the oldest-ever world No 1 - but is he the greatest sportsperson of all time?
VOTE: Greatest tennis rivalry?
To mark Rivalry Weekend on Sky Sports here's a look at the greatest rivalries in tennis and there have been some classics.