26. UPDATED: ATP Clay Court Rankings

I created ATP clay court rankings based on ATP points earned solely on a clay court. Similar to ATP rankings, the rankings are based on a player’s performance on the surface over the previous 52 weeks, and thus are updated weekly. Players are ranked not by the total number of ATP points they have obtained…

25. ATP Clay Court Rankings 2013-14

ATP rankings are based on results on all court surfaces. However, with a higher than normal level of anticipation for the European clay court season now upon us, what we need are rankings specific to clay courts. This post provides those rankings. Introduction Clay is back. On no other surface does men’s tennis get as…

24. Anti-doping: ITF vs USADA

The administration of anti-doping tests in most sports is shared between the international federation and a player or athlete’s national anti-doping authority. Professional tennis is no different: for US tennis players, anti-doping tests are conducted by both the ITF and USADA (the US Anti-Doping Agency). Accordingly, following the publication this week by the ITF of anti-doping…

23. Making sense of ITF anti-doping data

Professional tennis’s anti-doping programme took a significant step forward in 2013 by conducting more out-of-competition tests as part of its introduction of biological passports. However, inconsistencies and omissions remain in the programme – how was Del Potro not tested out-of-competition? And for comparison, the number of tests per player significantly lags that of professional road cycling. Report…