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post #1 of 186 (permalink) Old Apr 1st, 2018, 07:02 PM Thread Starter
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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


_____________________________________



Last edited by Peter2003; Jun 4th, 2019 at 07:49 AM.
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post #2 of 186 (permalink) Old Apr 2nd, 2018, 02:11 AM
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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.
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post #3 of 186 (permalink) Old Apr 2nd, 2018, 11:09 AM Thread Starter
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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)

_____________________________________


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Last edited by Peter2003; May 25th, 2019 at 09:39 AM.
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post #4 of 186 (permalink) Old Apr 2nd, 2018, 01:48 PM Thread Starter
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Re: my weekly rankings project



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





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








______________




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 - 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 the newest insights.
- than many of the early VS tournaments, all seeming "Tier I", will be downgraded painfully
- on the other hand: for many tournaments of the amateur era we will see a bigger difference to each other

planned as well:
  • quality points: raising the total amount / a new bonus for defeating higher-ranked players
  • modifying my Grade-maker program.



Attached Files
File Type: pdf my rulebook (updated).pdf (29.3 KB, 1 views)

Last edited by Peter2003; Jun 4th, 2019 at 07:57 AM.
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post #5 of 186 (permalink) Old Apr 2nd, 2018, 04:02 PM Thread Starter
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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:





Best 16:





average per tournament:





diminishing:





_______________


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Last edited by Peter2003; May 20th, 2019 at 05:06 PM.
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post #6 of 186 (permalink) Old Apr 2nd, 2018, 07:27 PM
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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?
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post #7 of 186 (permalink) Old Apr 2nd, 2018, 09:37 PM Thread Starter
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Re: my weekly rankings project

Quote:
Originally Posted by Mark43 View Post
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.


Last edited by Peter2003; Dec 4th, 2018 at 01:28 PM.
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post #8 of 186 (permalink) Old Apr 3rd, 2018, 06:35 AM Thread Starter
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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 (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		Kim Clijsters 		BEL		20^	(10^)
26		Jelena Jankovic 	SRB		18^	(17^)
27		Jennifer Capriati 	US		17^	(6^)
28		Naomi Osaka		JP		..		
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^


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)


1995 Feb 6^	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		..	..


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

_______________



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	



_ _ _ _ _ _ _ _ _ _



weeks in which players were on top at all rankings at the same time

(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)

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)

Last edited by Peter2003; Yesterday at 11:24 AM.
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post #9 of 186 (permalink) Old Apr 3rd, 2018, 05:32 PM
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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.
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post #10 of 186 (permalink) Old Apr 3rd, 2018, 09:12 PM Thread Starter
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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.



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

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.

Last edited by Peter2003; Dec 7th, 2018 at 10:04 PM.
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post #11 of 186 (permalink) Old Apr 4th, 2018, 07:07 PM
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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!
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post #12 of 186 (permalink) Old Apr 4th, 2018, 07:54 PM Thread Starter
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Re: my weekly rankings project

Quote:
Originally Posted by Mark43 View Post
... 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.
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post #13 of 186 (permalink) Old Apr 5th, 2018, 01:53 PM Thread Starter
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Re: my weekly rankings project

the rankings after the US Ch's
first version (this list is out of date - look at post #28)
Attached Files
File Type: pdf ranking 1959-09-14 top200.pdf (94.9 KB, 5 views)

Last edited by Peter2003; Dec 7th, 2018 at 09:32 PM.
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post #14 of 186 (permalink) Old Apr 6th, 2018, 06:52 AM Thread Starter
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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


Last edited by Peter2003; Dec 13th, 2018 at 05:20 PM.
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post #15 of 186 (permalink) Old Apr 6th, 2018, 06:54 AM Thread Starter
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Re: my weekly rankings project

1946

Last edited by Peter2003; Apr 6th, 2018 at 07:08 AM.
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