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Peter2003 Apr 1st, 2018 07:02 PM

my weekly rankings project
 

Intro:


the official rankings by the WTA for women's pro players were introduced in 1975.
All available statistics can only go back to that date.

The most important statistics are around the number one position, where Steffi Graf got impressive achievements.
But how good does she look in comparison to all the stars competing before 1975?

And further: how good does she look if we apply the same rules for all rankings?
An important question. Because the official system to rank the players saw some big changes and various smaller changes over the decades,
which made the ranking results not comparable one-to-one.

My ambitious aim is to create synchronized rankings for all pro years and then extend the timescale as far back as possible.



_____________________________________



direct links:


1945, 1946, 1947, 1948, 1949

1950, 1951, 1952, 1953, 1954, 1955, 1956,
1957, 1958, 1959,

1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969,

1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979,

1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989

1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999

2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009

2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019



prime statistics: overview №1s + top10s


_____________________________________



Rollo Apr 2nd, 2018 02:11 AM

Re: my weekly rankings project
 
I look forward to your rankings Peter!

While some years are "easy" (For example-Steffi Graf in 1988) others are tough.

Good luck with your project.

Peter2003 Apr 2nd, 2018 11:09 AM

Re: my weekly rankings project
 


principles:


Unlike to Rollo's "easy" years (surely only meaning who is №1), there are no easy years to work on.


With working on this project I realized that this project will never be finished.

Why?

1.
To finish it I would need the complete data of results of all tournaments ever played.
Almost every day are added new or corrected results in this forum, which will change the rankings more or less when I add them to my database.

2.
And also the data given for names is often incomplete or inconclusive.
Almost every week I recognize new coherencies (married names for example).
Results formerly seperated should be added together and some results should be seperated later, wich also changes the rankings more or less.

3.
There are also many standalone results I cannot associate with a specific person, because of no first name given or many persons exist with the same initials.
Can I associate them clearly one day in the future, this also changes the rankings more or less.
(examples: A. Rigby = Anthea or Agnes or Alison? / L. Raymond = Lorna or Lois? / G. Stirton = Gwen or Greta?)

I can not recalculate all years after making a change in the database and post the new lists here immediately.
So every list posted here is a snap-shot of the data I had at that day of calculating.


_____________________________________



This thread's goal is 75 years with almost 3900 weeks of rankings!


the project progress:

step1: 1968 to 1975 ..................... finished, ca. 2017-06
step2: 1964 to 1968 ..................... finished, ca. 2017-11
step3: 1976 to 1980 ..................... finished, ca. 2018-01
step4: 1959 to 1964 ..................... finished, ca. 2018-05
step5: 1965 to 1980 (updating) ..... finished, 2018-10
step6: 1981 to 1996 ..................... current work
(opening new thread?)
step7: 1920 to 1958
step8: 1959 to 1996 (updating)
step9: 1997 to 2018


It is impossible to post every weekly ranking here. So I will limit myself to excerpts of the most important seeming weeks, including the "Big Three".


_____________________________________


  • My coloured ranking-files show:
    green for bettered numbers | dark red for worsened numbers
    The displayed points sums in my ranking-files are rounded to full points, unless the difference between positions is less than 1 point,
    than tenths, hundredths or thousandth will be displayed automatically.
    The displayed points in the added/off columns are always rounded ("0," = value between 0.001 and 0.500).
  • My short personal comments about the rankings between the pictures are primarily focused on up-movements of young/new players or special achievements of established players.
    (yo = years old | # = number)

_____________________________________



Peter2003 Apr 2nd, 2018 01:48 PM

Re: my weekly rankings project
 
1 Attachment(s)


my rules:


Everyone has own ideas and suggestions about the best system - many discussions about that case inside Forums.

Mine is mostly based on the WTA rules of 2005 as you can see in my rulebook.
Surely I had some points of criticism about details and adjust it, but in general I always thought that was a good system to show the performance of the players.



  • ranking of round points and quality points combined (similar to WTA from mid-'80s till 2005)
  • match ranking instead of round-reach ranking (= no points for byes or walkovers)
  • all results from a 52-week-period are converted into points and simply added together
  • I'm firmly convinced that further rules (best 16 results , average per tournament) will cause inappropriate disadvantage/privilege of certain circumstances



https://img.picload.org/image/dciwri...ts_table_t.png

The current used tournament categories and points allocations are not fixed forever, they are still in the refining process. *




https://img.picload.org/image/dciwri...ts_table_r.png



______________




about the additional rankings beside my main rankings:
  • all these use the existing round points values from my main rankings, but not those quality values --> because the ranking positions often differ, the quality points cannot be the same (too complicated for now)
  • "Diminishing": results of the latest 3 month count 100%, than declining percentages down to 50% for the oldest month
  • average-per-tourn't: adapts the minimum divisor of 12 tournaments
  • the 5-lists-mix: only the positions of the other lists converted, not the points (value 1.00 means №1 everywhere)


______________



* the future:

I already know that I have to make some changes:
(because of the growing differencies in ITF categories in the 1990s - which also is more appropriate for hundreds of smaller pre-Open-Era tournaments)
In that alteration process I will also (try to) allocate fix categories for all years before the 1980s as measured by my newest insights.
- that means for many tournaments of the amateur era I will have a more different rankings impact than now
- on the other hand: some/many of the early Virginia Slims tournaments, all seeming "Tier I", will be downgraded painfully

planned as well:
  • will raise the normal amount of quality points (targeting an average 40%-ratio for the top100, up from < 30%-ratio at now)
  • thinking about to implement bonus points for defeating much-higher-ranked players
  • will modify my tournament-Grade-assign program
  • will count the Challenge Round as a normal final match, corresponding only 280 basic points to the winner

______________



Peter2003 Apr 2nd, 2018 04:02 PM

Re: my weekly rankings project
 


an example for special interest




best career ranking stats - latest outcome:

system ........ high .... first wk ..... last wk ..... weeks ... series ... returns ... smallest gap to №1

main ........... №2 .... 1973-10-15 ... 1978-11-13 .... 70 ....... 47 ....... 7 ......... 8 % (1976-10-18)

Best 16 ........ №2 .... 1975-02-24 ... 1978-11-13 .... 78 ....... 46 ....... 6 ........ 14 % (1976-10-18)

Average ........ №2 .... 1976-03-22 ... 1977-03-21 .... 53 ....... 53 ....... 0 ........ 12 % (1977-01-10)

Diminishing .... №2 .... 1972-09-11 ... 1978-09-25 .... 88 ....... 47 ....... 6 ........ 14 % (1976-06-07)




pictures of the weeks in which Goolagong had the smallest gap to the number one:


main:

https://img.picload.org/image/dclcga...10-18_main.png



Best 16:

https://img.picload.org/image/dclcga...-18_best16.png



average per tournament:

https://img.picload.org/image/dclcga...10_average.png



diminishing:

https://img.picload.org/image/dclcga...7_diminish.png



_______________



Mark43 Apr 2nd, 2018 07:27 PM

Re: my weekly rankings project
 
Wow, this sounds amazing. Thank you!
So Goolagong never attained the number one ranking in your stats? Not in 1971 or Ď76?

Peter2003 Apr 2nd, 2018 09:37 PM

Re: my weekly rankings project
 
Quote:

Originally Posted by Mark43 (Post 80182164)
Wow, this sounds amazing. Thank you!
So Goolagong never attained the number one ranking in your stats? Not in 1971 or ‘76?

That's right.
After her Wimbledon victory in 1971 she had by far the biggest single points result on her count until the next Wimbledon, but other tournaments were not strong enough to get ahead of others (the grade of each tournament is deciding).

---------------------------------------------------

Excerpts of the weeks where Goolagong officially recognized as being no1. (renewed because the old picture disappeared)
Here she earns the second-highest single result of all players but the distance to Evert stays too big.

https://img.picload.org/image/dclcgr..._goolagong.png

Peter2003 Apr 3rd, 2018 06:35 AM

Re: my weekly rankings project
 


outcome overview



the number ones
(main rankings)

Navratilova leads all for most weeks - not imaginable anyone can surpass her.
Margaret Smith Court is 2nd with 398 weeks (but 2 x hiatus included!)

Code:

numbers till 1993 December
^ = WTA-only (numbers from Wikipedia) | į = combined mine and WTA | Plum-colour = provisional


listed by weeks:
                                                        weeks         (best
                                                        in total        series)


1                Martina Navratilova        [TCH]                455        (307)
2                Margaret Smith                AU                398        (143)
3                Steffi Graf                FRG                389į         (139)
4                Serena Williams        US                319^        (186^)
5                Chris Evert                US                233        (199)
6                Martina Hingis                SUI                209^        (80^)
7                Monika Seles                YU                149į        (82)
8                Billie-Jean King        US                134        (88)
9                Justine Henin-Hardenne        BEL                117^        (61^)
10                Lindsay Davenport        US                98^        (44^)

11                Althea Gibson                US                80+
12                Ann Haydon                GB                83        (22)
13                Caroline Wozniacki        DK                71^        (49^)
14                Maria Bueno                BRA                69        (19)
15                Simona Halep                ROM                64^        (48^)
16                Victoria Azarenka        BLR                51^        (32^)
17                Lesley Turner                AU                41        (35)
18                Amelie Mauresmo        FR                39^        (34^)
19                Anjelique Kerber        GER                34^        (20^)
20                Francoise Durr                FR                27        (9)

21                Dinara Safina                RU                26^        (25^)
22                Hana Mandlikova        TCH                24        (17)
23                Sandra Reynolds        RSA                22
24                Maria Sharapova        RU                21^        (7^)
25                Naomi Osaka                JP                21^               
26                Kim Clijsters                BEL                20^        (10^)
27                Jelena Jankovic        SRB                18^        (17^)
28                Jennifer Capriati        US                17^        (6^)
29                Angela Mortimer        GB                12
30                Arantxa Sanchez Vicario        ESP                12^        (6^)

31                Ana Ivanovic                SRB                12^        (9^)
32                Venus Williams                US                11^        (4^)
33                Gabriela Sabatini        ARG                8        (4)
34                Karolina Pliskova        CZE                8^
35                Yola Ramirez                MEX                6
36                Shirley Bloomer        GB                5
37                Christine Truman        GB                5
38                Garbine Muguruza        ESP                4^
39                Ashleigh Barty                AU                ..



listed by date:

date of reach                                                weeks         (best
                                                        in total        series)


195x                Althea Gibson                US                80+

1958 Jan 27        Shirley Bloomer        GB                5
1958 Sep 29        Maria Bueno                BRA                69        (19)

1959 Apr 6        Angela Mortimer        GB                12
1959 Jun 29        Christine Truman        GB                5
1959 Aug 3        Sandra Reynolds        RSA                22

1960 May 16        Ann Haydon                GB                83        (22)

1961 Nov 6        Yola Ramirez                MEX                6
1961 Dec 18        Margaret Smith                AU                398        (143)

1963 Mar 25        Lesley Turner                AU                41        (35)

1967 Feb 27        Francoise Durr                FR                27        (9)

1968 Jan 8        Billie-Jean King        US                134        (88)

1974 Feb 11        Chris Evert                US                233        (199)

1978 Feb 06        Martina Navratilova        [TCH]                455        (307)

1981 Mar 2        Hana Mandlikova        TCH                24        (17)

1987 Aug 17        Steffi Graf                FRG                389į         (139)

1991 Feb 4        Monika Seles                YU                149į        (82)
1991 Jun 10        Gabriela Sabatini        ARG                8        (4)

1994 Oct 03        Arantxa Sanchez Vicario        ESP                12^        (6^)


1997 Mar 31^        Martina Hingis                SUI                209^        (80^)

1998 Oct 12^        Lindsay Davenport        US                98^        (44^)

2001 Oct 15^        Jennifer Capriati        US                17^        (6^)
2002 Feb 25^        Venus Williams                US                11^        (4^)
2002 July 8^        Serena Williams        US                319^        (186^)

2003 Aug 11^        Kim Clijsters                BEL                20^        (10^)
2003 Okt 20^        Justine Henin-Hardenne        BEL                117^        (61^)

2004 Sep 13^        Amelie Mauresmo        FR                39^        (34^)

2005 Aug 22^        Maria Sharapova        RU                21^        (7^)

2008 Jun 9^        Ana Ivanovic                SRB                12^        (9^)
2008 Aug 11^        Jelena Jankovic        SRB                18^        (17^)
2009 Apr 20^        Dinara Safina                RU                26^        (25^)

2010 Oct 11^        Caroline Wozniacki        DK                71^        (49^)

2012 Jan 30^        Victoria Azarenka        BLR                51^        (32^)

2016 Sep 12^        Anjelique Kerber        GER                34^        (20^)
2017 July 17^        Karolina Pliskova        CZE                8^
2017 Sep 11^        Garbine Muguruza        ESP                4^
2017 Oct 9^        Simona Halep                ROM                64^        (48^)

2019 Jan 28^        Naomi Osaka                JP                21^        (=)
2019 Jun 24^        Ashleigh Barty                AU                ..



all changes at the top of my main rankings:

Code:

...                Althea Gibson
1958 Jan 27        Shirley Bloomer
1958 Mar 3        Althea Gibson
1958 Sep 29        Maria Bueno

1959 Feb 2        Althea Gibson
1959 Mar 16        Maria Bueno
1959 Apr 6        Angela Mortimer
1959 Jun 29        Christine Truman
1959 Aug 3        Sandra Reynolds

1960 Jan 4        Maria Bueno
1960 May 16        Ann Haydon
1960 May 23        Maria Bueno
1960 Jun 13        Ann Haydon
1960 Jul 18        Maria Bueno
1960 Sep 26        Ann Haydon
1960 Oct 10        Maria Bueno
1960 Oct 24        Ann Haydon

1961 Mar 20        Maria Bueno
1961 Mar 27        Ann Haydon
1961 May 1        Maria Bueno
1961 Jun 5        Ann Haydon
1961 Nov 6        Yola Ramirez
1961 Dec 18        Margaret Smith

1962 May 7        Ann Haydon
1962 May 14        Margaret Smith

1963 Mar 25        Lesley Turner
1963 Nov 25        Margaret Smith
1963 Dec 2        Lesley Turner
1963 Dec 9        Margaret Smith
1963 Dec 16        Lesley Turner
1964 Jan 6        Margaret Smith
1964 Jan 27        Lesley Turner
1964 Feb 10        Margaret Smith

1966 Nov 7        Ann Haydon Jones
1967 Jan 2        Maria Bueno
1967 Feb 27        Francoise Durr
1967 Apr 10        Ann Haydon Jones
1967 May 29        Francoise Durr
1967 Jul 3        Ann Haydon Jones
1967 Aug 7        Francoise Durr
1967 Sep 25        Ann Haydon Jones
1967 Oct 2        Francoise Durr
1967 Dec 4        Ann Haydon Jones
1968 Jan 8        Billie-Jean King

1968 Nov 4        Margaret Smith Court

1971 Jun 28        Billie-Jean King
1971 Jul 12        Margaret Smith Court
1971 Jul 19        Billie-Jean King

1973 Mar 26        Margaret Smith Court

1974 Feb 11        Chris Evert
1974 Apr 8        Billie-Jean King
1974 Apr 15        Chris Evert

1978 Feb 6        Martina Navratilova

1979 Mar 12        Chris Evert
1979 Mar 26        Martina Navratilova
1979 Jun 4        Chris Evert
1979 Oct 1        Martina Navratilova
1979 Oct 8        Chris Evert
1979 Oct 15        Martina Navratilova

1980 Feb 4        Chris Evert
1980 Feb 11        Martina Navratilova

1981 Mar 2        Hana Mandlikova
1981 Mar 16        Martina Navratilova
1981 Mar 23        Hana Mandlikova
1981 Apr 27        Chris Evert
1981 Jun 1        Hana Mandlikova
1981 Sep 28        Martina Navratilova

1987 Aug 17        Steffi Graf
1987 Sep 14        Martina Navratilova
1987 Sep 28        Steffi Graf
1987 Oct 26        Martina Navratilova
1987 Nov 2        Steffi Graf

1988 Apr 18        Martina Navratilova
1988 Apr 25        Steffi Graf
1988 May 9        Martina Navratilova
1988 Jun 6        Steffi Graf

1991 Feb 4        Monika Seles
1991 Mar 25        Steffi Graf
1991 Jun 10        Gabriela Sabatini
1991 July 8        Steffi Graf
1991 Aug 12        Gabriela Sabatini
1991 Sep 9        Monika Seles

1993 Apr 5        Steffi Graf
1993 Apr 12        Monika Seles
1993 Apr 19        Steffi Graf
1994 Oct 3        Arantxa Sanchez Vicario


_______________



number ones on other systems


Code:




Best 16 results


* mine and WTA combined (mine untill 1991-12)


date of reach                                        total        (series)

1959-12-28        Maria Bueno                BRA         102+        (80+)

1961-07-10        Angela Mortimer        GB        3
1961-07-31        Ann Haydon                GB        54        (28)
1961-11-27        Margaret Smith                AU        431        (260)

1968-01-08        Billie-Jean King        US        153        (94)

1974-03-11        Chris Evert                US        236        (199)

1978-02-06        Martina Navratilova        (TCH)        456        (309)

1981-01-05        Tracy Austin                US        6        (4)
1981-08-10        Hana Mandlikova        TCH        4        (2)

1987-08-17        Steffi Graf                FRG        187        (169)

1991-01-28        Monika Seles                YU        31        (17)

1991-06-10        Gabriela Sabatini        ARG        8        (4)

_ _ _ _ _ _ _ _ _ _


Average per Tournament

* mine and WTA combined (mine untill 1991-12)


date of reach                                        total        (series)

1959-12-28        Maria Bueno                BRA         151+        (89+)

1961-09-11        Angela Mortimer        GB        21        (18)

1962-01-15        Margaret Smith                AU        374        (161)

1967-06-26        Nancy Richey                US        26        (11)
1967-09-11        Billie-Jean King        US        167        (64)
1967-11-27        Ann Haydon                GB        12        (9)

1973-05-28        Chris Evert                US        327        (200)

1978-04-03        Martina Navratilova        (TCH)        359        (273)

1980-06-30        Tracy Austin                US        7

1987-08-24        Steffi Graf                FRG        181        (175)

1991-02-18        Monika Seles                YU        47        (=)


_ _ _ _ _ _ _ _ _ _


Diminishing results

* mine and WTA combined (mine untill 1991-12)


date of reach                                        total        (series)

1959-12-28        Maria Bueno                BRA         66+        (22+)

1960-05-09        Ann Haydon                GB        91        (33)

1962-01-08        Margaret Smith                AU        383        (154)

1963-03-25        Lesley Turner                AU        29

1967-02-27        Francoise Durr                FR        17        (7)
1967-12-18        Billie-Jean King        US        150        (102)

1974-01-28        Chris Evert                US        219        (197)

1978-01-23        Martina Navratilova        (TCH)        453        (242)

1981-02-09        Hana Mandlikova        TCH        26        (12)

1987-08-17        Steffi Graf                FRG        198        (186)

1991-02-04        Monika Seles                YU        31        (17)

1991-08-12        Gabriela Sabatini        ARG        4       



_ _ _ _ _ _ _ _ _ _



players on top at all my different rankings in the same week

(between 1959-12 and 1991-12)


1st time                                        total        (series)

1960-01-04        Maria Bueno                BRA        41        (18)

1962-01-15        Margaret Smith                AU        284        (95)

1968-01-29        Billie-Jean King        US        105        (53)

1974-06-03        Chris Evert                US        197        (190)

1978-04-03        Martina Navratilova        (TCH)        335        (205)

1987-08-24        Steffi Graf                FRG        170        (138)

1991-02-18        Monika Seles                YU        22        (17)

_______________




the top 10 club

(main rankings only)


becoming a top10 player doesn't happen as often as I thought

Code:

1957-12-23         Louise Brough Clapp        US (1)
1957-12-23         Karol Fageros                US (2)
1957-12-23         Althea Gibson                US (3)
1957-12-23         Darlene Hard                US (4)
1957-12-23         Dottie Head Knode        US (5)
1957-12-23         Shirley Bloomer        GB (1)
1957-12-23         Angela Mortimer        GB (2)
1957-12-23         Christine Truman        GB (3)
1957-12-23         Yola Ramirez                MEX (1)
1957-12-23         Rosie Reyes                MEX (2)

1958-02-24        Anne Shilcock                GB (4)
1958-04-07        Janet Hopps Adkisson        US (6)
1958-05-12        Maria Bueno                BRA (1)
1958-05-26        Suzy Kormoczy                HUN (1)
1958-06-23        Lorraine Coghlan        AU (1)
1958-06-30        Anne Haydon                GB (5)
1958-06-30        Heather Brewer Segal        RSA (1)

1959-01-12        Thelma Long                AU (2)
1959-05-11        Sandra Reynolds        RSA (2)
1959-06-15        Sally Moore                US (7)
1959-06-22        Renee Schuurman        RSA (3)

1960-03-14        Jan Lehane                AU (3)
1960-06-27        Karen Hantze                US (8)
1960-07-25        Deidre Catt                GB (6)
1960-08-01        Bernice Carr Vukovich        RSA (4)

1961-04-24        Rita Bentley                GB (7)
1961-05-01        Edda Buding                FRG (1)
1961-05-15        Margaret Smith                AU (4)
1961-07-17        Lesley Turner                AU (5)

1963-05-20        Vera Sukova                TCH (1)
1963-06-10        Robyn Ebbern                AU (6)
1963-06-17        Liz Starkie                GB (8)
1963-09-23        Billie-Jean Moffitt        US (9)

1964-06-22        Nancy Richey                US (10)
1964-07-20        Norma Baylon                ARG (1)
1964-09-07        Anette van Zyl                RSA (5)

1965-02-08        Francoise Durr                FR (1)
1965-04-19        Helga Schultze                FRG (2)
1965-05-10        Judy Tegart                AU (7)
1965-11-22        Gail Sherriff                AU (8)

1966-10-24        Virginia Wade                GB (9)
1966-11-21        Kerry Melville                AU (9)

1967-01-30        Rosie Casals                US (11)
1967-03-20        Helga Niessen                FRG (3)
1967-06-19        Pat Walkden                RHO (1)
1967-12-04        Kathy Harter                US (12)

1968 (no top10-debut, 1 stopped at #12)

1969-03-03        Julie Heldman                US (13)
1969-03-24        Karen Krantzcke        AU (10)
1969-05-19        Winnie Shaw                GB (10)
1969-06-09        Mary-Ann Eisel                US (14)

1970-01-19        Peaches Bartkowicz        US (15)
1970-08-24        Evonne Goolagong        AU (11)

1971-02-08        Patti Hogan                US (16)

1972-01-31        Helen Gourlay                AU (12)
1972-04-17        Chris Evert                US (17)
1972-05-29        Wendy Overton                US (18)
1972-09-11        Betty Stove                NED (1)

1973-03-05        Lesley Hunt                AU (13)

1974-05-13        Olga Morozova                URS (1)
1974-10-21        Martina Navratilova        TCH (2)

1975-03-31        Dianne Fromholtz        AU (14)
1975-09-29        Sue Barker                GB (11)
1975-12-29        Linky Boshoff                RSA (6)

1976-01-19        Janet Newberry                US (19)
1976-03-08        Terry Holladay                US (20)
1976-08-09        Mima Jausovec                YU (1)

1977-09-12        Wendy Turnbull                AU (15)

1978-06-05        Virginia Ruzici        ROU (1)
1978-09-11        Regina Marsikova        TCH (3)
1978-10-30        Traci Austin                US (21)

1979 (no top10-debut, 1 stopped at #12)

1980-05-19        Hana Mandlikova        TCH (4)
1980-09-01        Andrea Jaeger                US (22)
1980-12-08        Pam Shriver                US (23)

1981-02-23        Sylvia Hanika                FRG (4)
1981-03-09        Barbara Potter                US (24)
1981-03-16        Bettina Bunge                FRG (5)

1982-08-02        Anne Smith                US (25)

1983-08-08        Andrea Temesvari        HUN (2)
1983-09-12        Jo Durie                GB (12)
1983-12-12        Kathy Jordan                US (26)
1983-12-12        Zina Garrison                US (27)

1984-03-19        Kathy Horvath                US (28)
1984-04-02        Helena Sukova                TCH (5)
1984-05-28        Carling Basset                CAN (1)
1984-06-11        Lisa Bonder                US (29)
1984-06-18        Manuela Maleeva        BUL (1)
1984-11-26        Claudia Kohde-Kilsch        FRG (6)

1985-03-25        Catarina Lindqvist        SWE (1)
1985-07-08        Kathy Rinaldi                US (30)
1985-09-09        Steffi Graf                FRG (7)

1986-02-17        Bonnie Gadusek                US (31)
1986-07-07        Gabriela Sabatini        ARG (2)

1987-03-30        Lori McNeil                US (32)

1988-04-11        Raffaella Reggi                IT (1)
1988-06-20        Natalia Zvereva        URS (2)

1989-06-12        Arantxa Sanchez                ESP (1)
1989-06-19        Jana Novotna                TCH (6)
1989-10-16        Mary-Joe Fernandez        US (33)
1989-10-30        Monica Seles                YU (2)

1990-04-30        Katarina Maleeva        BUL (2)

1991-08-05        Jennifer Capriati        US (34)
1991-08-19        Conchita Martinez          ESP (2)
1991-11-11        Nathalie Tauziat          FR (2)

1992 (no top10-debut, 1 stopped at #11)

1993-06-07        Anke Huber                  GER (8)

1994-01-31        Kimiko Date                JP (1)
1994-04-04        Mary Pierce                  FR (3)
1994-04-11        Lindsay Davenport        US (35)
1994-08-01        Amanda Coetzer                  RSA (7)

1995-xx

1996-xx


top tenners by nation* 1957 - 1993

USA .............. 34
Australia ........ 15
Great Britain .... 12
Germany ........... 8
South Africa ...... 6
Czecholslovakia ... 6
Mexico ............ 2
Hungary ........... 2
Argentina ......... 2
USSR .............. 2
Yugoslavia ........ 2
Bulgaria .......... 2
Spain ............. 2
France ............ 2
Brazil ............ 1
Netherlands ....... 1
Rhodesia .......... 1
Romania ........... 1
Canada ............ 1
Sweden ............ 1
Italy ............. 1
---------------------
................. 104 players from 21 nations

* nation when reaching top10 - no additional counting after nationality change for any reason

  • it's only 35 years of the tennis history, nevertheless it's impressive how often Australia and South Africa are represented (seen from today)

Mark43 Apr 3rd, 2018 05:32 PM

Re: my weekly rankings project
 
Thanks Peter. This is so interesting! So, I am wondering how did Martina get to number one so fast in Jan 1978? Chris would have only lost points from a few Slims tournies, but still held the Slims finale, USO, Colgate and Hilton Head. Did you halve the points after 26 weeks?
And also curious as to Martina being ranked number one from start to finish in 1980? When that season ended she had no slams or even slam final results, just final of the Avon. Did the Jan 1980 Colgate factor heavily into this?
Thanks again. Really great stuff.

Peter2003 Apr 3rd, 2018 09:12 PM

Re: my weekly rankings project
 
At first: she was not really a fast no.1 - she reached the no.2 very fast -and then it needed 3 years to reach the no.1 finally.

Below you can look at the takeover in 1978:
I think the answer for you questions you will find in post #4:

You can see if you take an average of the points, she wouldn't be no.1. The official rankings are averaged as far as I know.

Here with 20 to 13 tournaments --> Navratilova worked harder than Evert - she deserved it.
You can also see that Cuypers is ranked only at 24 with 32 results, so playing more doesn't mean automatically high rankings.

https://img.picload.org/image/dclidp...6_version1.png

---------------------------------------------

Quote:

When that season ended she had no slams or even slam final results, just final of the Avon. Did the Jan 1980 Colgate factor heavily into this?
the Colgate Ch's is her second best, Chicago is her best result.

Mark43 Apr 4th, 2018 07:07 PM

Re: my weekly rankings project
 
Iím still trying to understand how Martina took over the number one ranking so early in the year of 1978. If I understand your system correctly, there is no drop off of points from earlier in a 52 week ranking period - itís just simply an accumulation of both points earned as well as quality points for victories over highly ranked players? So, because Martina played so many more tournaments than Chris, she accumulated more points overall? Martina went on such an incredible run in Evertís absence during the winter of Ď78, just losing two matches, that it makes sense she could take over the top spot. I just thought it would have been later than January 16th. To me, it makes more sense that it would happen when Chrisís Slims finale drops off and Martinaís Slim victory is added in.

But again, what a wonderful and interesting thread.

Also, I am wondering if you have the official rankings from January 1978? I have always wondered where Goolagong debuted when she popped back on to the computer rankings? Iíve always wondered if she might have had the highest debut in WTA computer ranking history but Iíve never been able to locate those rankings. Much appreciated if you have them.
Thank you!

Peter2003 Apr 4th, 2018 07:54 PM

Re: my weekly rankings project
 
Quote:

Originally Posted by Mark43 (Post 80188448)
... If I understand your system correctly, there is no drop off of points from earlier in a 52 week ranking period - itís just simply an accumulation of both points earned as well as quality points for victories over highly ranked players? ...

yes
Quote:

... Also, I am wondering if you have the official rankings from January 1978?...
Iíve never been able to locate those rankings. Much appreciated if you have them.
I can't help you, sorry.
Quote:

... might have had the highest debut in WTA computer ranking history ...
with a minimun tournaments rule this is possible. Today if I win 3 Grand Slams and play nothing else I would debut inside the top10.;)

Peter2003 Apr 5th, 2018 01:53 PM

Re: my weekly rankings project
 
1 Attachment(s)
the rankings after the US Ch's
first version (this list is out of date - look at post #28)

Peter2003 Apr 6th, 2018 06:52 AM

Re: my weekly rankings project
 
I think I should build this thread like "Rollo' Rankings": posts on stock for every single year. This will contain the years from 1945 onwards.
If I'm finished and still have energy I will open a second thread with the time untill 1945.

It was very interesting to read in this Forum that there were also tournaments during both world wars.
I have no imagination how I should handle those years with mostly small local tournaments without good competitions.
Also 1945 (rest), 1946, 1947 tournaments can't have the best competions I think. Travelling around surely was still not that easy within/from/to the destroyed continent(s).

For now I will start at the end of the 1950s, when the world has mostly recovered in many ways and travelling around got easier.

________________________________


1945


Peter2003 Apr 6th, 2018 06:54 AM

Re: my weekly rankings project
 
1946


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