Some serve and return stats of the grass tournaments (1991-2007) [Archive] - MensTennisForums.com

Some serve and return stats of the grass tournaments (1991-2007)

Neely
06-14-2008, 12:07 AM
I was looking for a way to check the popular and ongoing assumption that grass was slowed down. Since we have hardly (or no at all) statistics about the speed of the ball before and after the bounce of 199x and 200x, I was looking for some possible indicators from the match stats which are available on atptennis.com for most main tour matches since 1991.

I ended up with 5 measueres:
aces per 10 points
% of 1st serve points won
break points per game
breaks per game
% of saved break points



The first picture shows these five above-mentioned measures for the tournaments (rows) over the years (columns), calculated on the basis of all matches in the course of the tournament.

http://img2.menstennisforums.com/727/Grass_Stats1.jpg

Neely
06-14-2008, 12:39 AM
The second picture shows the five measures for the tournaments (rows) over the years (columns), but this time calculated on the basis of all first round matches (Queen's 2nd round, due to the byes in the first round).

I did this to possibly eliminate too skewed numbers if one or more big servers who have incredible serving stats make it deep into the tournament. So with selecting one round only, each player only enters the used set of data once.

http://img2.menstennisforums.com/727/Grass_Stats2.jpg

Yves.
06-14-2008, 10:18 PM
Now you're busy, in Pick-A-Winner, is there ever been anybody with a perfect tournament?
Like: Member X wins Casablanca Picks right: 13-0 wrong.

Neely
06-15-2008, 09:38 AM
Now you're busy, in Pick-A-Winner, is there ever been anybody with a perfect tournament?
Like: Member X wins Casablanca Picks right: 13-0 wrong.
No idea, maybe you ask the people who manage this game for the answer ;)

qczi
06-15-2008, 11:12 AM
Now you're busy, in Pick-A-Winner, is there ever been anybody with a perfect tournament?
Like: Member X wins Casablanca Picks right: 13-0 wrong.

off-topic:
doha 2007 (http://www.menstennisforums.com/showthread.php?t=92154) but im sure robus did it once also

on-topic:
its really interesting, great job neely :yeah:

TankingTheSet
06-15-2008, 12:42 PM
Interesting, judging from your stats there's not much evidence from the points stats that grass has slowed down, in fact one of the few clear trends seems to be more aces served at Wimbledon in recent years.

Still I think it's difficult to draw conclusions because there are many factors influencing the stats, it's possible that slower courts are not reflected in the stats too much because of various factors. One possible reason is playing strategy (serve volley vs baseline for example) has changed with the players and that might have the effect of surpressing changes in the points stats because the numbers tend to converge to some kind of natural equilibrium that hasn't changed much.

Yves.
06-15-2008, 02:56 PM
You're the Johan Cruijf of tennis!