From: kasibhot@alnitak.usc.edu (Srinivasamurthy Kasibhotla)
Newsgroups: rec.sport.tennis
Subject: rankings information
Date: 25 Jan 1993 17:48:18 -0800
Organization: University of Southern California, Los Angeles, CA
Distribution: world
NNTP-Posting-Host: alnitak.usc.edu

Hi, I would like to thank the networkers for the info they keep posting on the AO regularly, particularly Mr. Chris Smith from GT. Also the recent discussion on how rankings are computed has been quite interesting. I have a few follow-up
questions.

First, thanks to Stefan Muench from Univ. of Karlsruhe for the info on
men's  rankings:

**************************************************************************

                  Total            Computer Points: Round of Loss
Category       Prize Money     W    F    S    Q    16   32   64   128
--------       -----------    ---  ---  ---  ---  ---- ---- ---- -----
Grand Slams     4,000,000     520  390  260  130   65   33   17    1
                3,500,000     500  375  250  125   63   32   16    1
                3,000,000     480  360  240  120   60   30   15    1
                2,500,000     460  345  230  115   58   29   15    1
                2,000,000     440  330  220  110   55   28   14    1

Championship    1,875,000     300  225  150   75   38   19   10    1
  Series        1,750,000     290  218  145   73   37   19   10    1
                1,625,000     280  210  140   70   35   18    9    1
                1,500,000     270  203  135   68   34   17    9    1
                1,375,000     260  195  130   65   33   17    1    1
                1,250,000     250  188  125   63   32   16    1
                1,125,000     240  180  120   60   30   15    1
                1,000,000     230  173  115   58   29   15    1
                  875,000     220  165  110   55   28   14    1
                  750,000     210  158  105   53   27   14    1
                  625,000     200  150  100   50   25   13    1

World             675,000     170  128   85   43   22   11    1
  Series          600,000     160  120   80   40   20   10    1
                  525,000     150  113   75   38   19   10    1
                  450,000     140  105   70   35   18    9    1
                  375,000     130   98   65   33   17    9    1
                  300,000     120   90   60   30   15    8    1
                  225,000     110   83   55   28   14    7    1
                  150,000     100   75   50   25   13    1

Challengers*      100,000+H    80   60   40   20   10    1
                  100,000      70   53   35   18    9    1
                   75,000      60   45   30   15    8    1
                   50,000      50   38   25   13    7    1
                   25,000      40   30   20   10    5    1

...Stuff deleted...
*********************************************************************
I am not sure I understand this entirely. Are you saying that under each 
category, points differ, depending on the amount of prize money? I thought all 
grand slam winners got equal number of points. But you have 5 rows(why 5?)
 under grand slams with difeerent points for each round. I guess I am just lost
here. Also can some one please give me example names of tournments under other categories?


Also thans to Ms. Natasha from U. of Illinois at Chicago for the following info

******************************************************************************

..stuff deleted...

points, based on the ranking of opponents beaten in the particular tournament
are added.  The total points awarded for each tournament played within a
52-week period are added & then divided by the number of tournaments played
in that same period.  Unlike the men's system, all tournaments count (except
exhibitions, Federation Cup, Olympics, etc).

              Points per round               Bonus points**
Grand Slams   winner     350                 loser's rank    #pts
              finalist   245                      1          58
              semifin.   158                      2          52
              quarterfin  88                     3-5         40
              4th round   50                     6-8         28
              3rd round   30                     9-11        21
              2nd round   18                    12-18        15
              1st round    1                    19-30         8
                                                31-50         5
regular       winner     200                    51-75         4
              finalist   140                    76-100        3
              semifin     90                   101-150        2
              quarterfin  50                   151-200        1
                                               201-300        0.5
                                               301-500        0.3
*******************************************************************************
	My question is are there only two tiers of tournments in women's tennis
	grand slams and regular (with no further subdivisions among "regular")?
	What about the Lipton's International at Key Biscayne for example, it
	is a 2 week event with 128 players. Does the winner at Lipton get the 
	same points as winner at Italian open as at Taipei Open, etc.


	finally Mr. Scott Patano from UT, Austin says	

>     As a final note, I would like to thank Mr. Vasu Kasubhota of the
>     University of S. California for the lively discussion on Seles/Graf.
>     I hope to be involved in more such commentary in the future.  I'll
>     catch you all after the A.O. quarters!

	Thanks Mr. Patano for the generous words, I fully reciprocate your 
	sentiments.

	before saying bye, here is a trivia question for those interested. What 	common distinction do Roger Taylor, Ismail El Shafei, Arthur Ashe and 	      John Mcenroe share (has to do with Wimbledon)?

	Vasu Kasibhotla
	Dept. of EE, USC, LA