The 2013 tennis season has had a much different turnout than many people expected.
Many players have been challenging the Top 10 guys, and it seems that an exclusive ranking is no longer good enough to shake opponents off.
With a new wave of talent emerging all so suddenly, it is questionable whether those players will join in the dominance as well. But we should know in a year or so.
I have assigned grades for all of the top players based on their 2013 performances.
Some players are excused for an unexpected bad loss here or there, but other than that, my grading is strict and appropriate.