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GameSetAndMath said:El Dude said:DarthFed said:Roger's lack of longevity is the problem. He was a late bloomer winning his first slam just before age 22 and then by age 28 he was a complete shell of himself and has only won 2 slams since. Nadal won his first slam at age 19 and has just won one at age 28.
This is a bit hyperbolic, Darth. He wasn't a "complete shell of himself" at age 28, he simply was no longer in his absolute peak - like most players aren't at that age. Roger's age-related decline doesn't point to a problem of longevity; if anything, he's been able to maintain a strong plateau longer than most players.
I created the table in the earlier post to show that this not a hyperbole. Roger's bell
curve tapers off fast at either end where as Rafa's bell curve tapers much less drastically
in the front end (and will do so probably at back end as well). But, the peak of Roger's
Bell curve is considerably higher than the peak of Rafa's Bell curve (and lasted longer
as well).
Approximately speaking, Fed has so far played 60 slams and won 17. His distribution is
as follows:
First 20 ----------------- 2
Second 20 ------------ 13
Next 20 ---------------- 2
Continuing along this line of thinking, Rafa has so far played approximately 40 slams
and won 14 of them. His distribution is as follows
First 20 ----------------- 6
Second 20 -------------- 8
Next 20 ----------------- ?
I guess it is reasonable to assume that he will be able to participate in
20 more slams. If his back end is going to be as good as his front end, one
could project 6 more slams for him, making his total to be 20. What a
scary thought?
On the other hand, if he deteriorates as fast as Fed (and more in line
with the rest of the GS champions) then he would win just a couple in the
next 20, making his total to be 16.
So, there is something for everybody. That is the beauty of statistics.
You can come up with seemingly good argument to support any conclusion.
Actually, there is an annual award in statistics for not abusing data. I will let
you all figure out which argument is spurious.