Our previous post analysing the results to 13 July 2015 looked at how the Top10 fared when they played against each other. This showed Novak Djokovic dominating, with respectable showings from Wawrinka, Federer and Murray in that order.
So why is Wawrinka world #4, not world #2?
Why is Wawrinka not one of the “Big Four”?
This diagram show why.
The inner ring of the diagram shows the players outside of the Top 10 who have beaten Top 10 opponents and the associated matches. The players are marked with black text and the matches with blue. The players are shown clockwise starting with world ranked no.11 Giles Simon in the position at 5 past 12. Matches are shown after the player. So Giles Simon is followed by 3 blue text matches with win lines radiating to Murray, Berdych and Raonic in the outer ring. He is the top performer with 3 wins against Top10. You will notice a number of others who have achieved 2 wins. The number of lines attached to a given Top 10 player in the outer circle indicates the number of losses.
Our other Top 4 players are very strong against players outside the Top 10. Djokovic has suffered only one defeat, Murray and Federer have suffered three. Wawrinka in contrast has suffered no less than 8 defeats to opponents outside the Top10 – the most of any Top10 player.