Last year I made a trending graph showing the ratio of winner to unforced errors for the top players in a slam... tracking their progression and consistency/peaking. I thought I'd solicit some opinions based on comments made last year. This year I planned a slightly more detailed chart which has a couple of trends: - winners to unforced error ratio and - winners to unforced error ratio excluding aces (some said last year that this artificially adds to the ratio for some players) and - winners per game played ratio. Although it isn't overly indicative of anything yet, looking at the top four player's opening matches here are a few comparisons. Winners to unforced error ratio (excluding serves) Djokovic 2.7 : 1 Murray 2.3 : 1 Nadal 2.2 : 1 Federer 1.8 : 1 Winners per game (including aces) Federer 1.7 Murray 1.5 Nadal 1.3 Djokovic 1.0 Winners per game (excluding aces) Federer 1.3 Nadal 1.1 Murray 1.0 Djokovic 0.7 Extending this out over a number of matches will be more indicative of how people are winning than a pure win/ufe ratio. Djokovic as you can see had the biggest winners to unforced error ratio... but also the lowest amount of winners per game. This could mean a number of things: he is tanking more of his opponents service games when he gets a few points behind or that his opponent was making more errors than Federer's, Nadal's and Murray's. This is where the stats start getting interpreted with opinions. You can also see that Murray served generally well as his winners per game with and without serves changes the most out of the top four players. (Either that or his opponent was poor returner) Any suggestions on ratios which you think show improving form over the course of multiple matches? FYI, previous year's charts plotting the winners to unforced errors ratio after the first 4 rounds showed who would be the eventual finalists in 2 of 3 slams I tracked. That said, it's not exactly hard to guess at least a couple of the last 4 at a slam.