[Rollo]

1963

British Lawn Tennis Reader's Poll
1 Smith
2 Bueno
3 Turner
4 Moffitt
5 Jones
6 Hard
7 Lehane
8 Schuurman
9 Truman
10 Sukova

Lance Tingay of the Daily Telegraph
1 Smith
2 Turner
3 Bueno
4 Moffitt
5 Jones
6 Hard
7 Lehane
8 Schuurman
9 Richey
10 Sukova

Ned Potter of World Tennis
1 Smith
2 Bueno
3 Turner
4 Hard
5 Moffitt
6 Jones
7 Lehane
8 Sukova
9 Schuurman
10 Ebbern

 

[Rollo]

1964

British Lawn Tennis Readers Poll
1 Bueno
2 Smith
3 Turner
4 Moffitt
5 Richey
6 Susman
7 Graebner
8 Jones
9 Ebbern
10 Lehane

Lance Tingay

1. M Smith -Australia
2. Maria Bueno-Brazil
3. L Turner Australia
4. C Graebner USA
5. H Schultze Germany
6. N Richey USA
7. BJ Moffitt USA
8. J Susman US
9. R Ebbern Australia
10.J Lehane -AUS

Ned Potter of World Tennis
1 Bueno
2 Smith
3 Turner
4 Richey
5 Moffitt
6 Graebner
7 Susman
8 Lehane
9 Hanks
10 Jones

Ulrich Kaiser based on an International panel.

1 Bueno
2 Smith
3 Turner
4 Moffitt
5 Ebbern
6 Richey
7 Graebner
8 Jones
9 Lehane
10 Susman
-----------
11 Schultze
12 Baylon

Only 1 point separated Bueno and Smith but it is obvious that many correspondents regard Wimbledon and Forest Hills as sacrosanct. Ebbern ahead of Richey interesting.

 

[Rollo]

1965

British Lawn Tennis Readers Poll
1 Smith
2 Bueno
3 King
4 Turner
5 Jones
6 Richey
7 van Zyl
8 Truman
9 Graebner
10 Durr


Joseph Macauley of World Tennis
1 Smith
2 Bueno
3 Richey
4 King
5 Turner
6 van Zyl
7 Truman
8 Jones
9 Graebner
10 Durr


Lance Tingay


1. M Smith -Australia
2. Maria Bueno-Brazil
3. Lesley Turner
4. BJ Moffitt USA
5. A Jones UK
6. A van Zyl S Africa
7. C Truman
8. N Richey USA
9. C Graebner USA
10. F Durr France


Sport za Rubezhom - Russia

1 Smith
2 Bueno
3 Turner
4 Moffitt
5 Richey
6 Jones
7 Graebner
8 van Zyl
9 Baylon
10 Durr

 

[Rollo]

1966

British Lawn Tennis Readers Poll

1 Bueno
2 Smith
3 King
4 Jones
5 Richey
6 van Zyl
7 Durr
8 Baylon
9 Casals
10 Wade

Bruce Walkley----Melbourne Herald Sun Australia.

1 Maria Bueno-Brazil
2 Nancy Richey-US
3 Margaret Smith-Aus.
4 Billie Jean King-US
5 AnnJones-GB
6 Annette van Zyl-S. Africa
7 Francoise Durr-France
8 Carole Graebner-US
9 Kerry Melville-Aus
10 Rosie Casals-US

Joseph Macauley (World Tennis)
1 King
2 Bueno
3 Jones
4 Smith
5 Richey
6 van Zyl
7 Casals
8 Baylon
9 Wade
10 Durr


Lance Tingay-Daily Telegraph

1. Billie Jean King
2. Margaret Smith
3. Maria Bueno
4. Ann Haydon Jones
5. Nancy Richey
6. Annette van Zyl
7. Norma Baylon-Argentina
8. Francoise Durr
9. Rosie Casals
10. Kerry Melville

Pierre de Thier, Belgium

1 King
2 Smith
3 Bueno
4 Jones
5 Richey
6 van Zyl
7 Casals
8 Melville
9 Durr
10 Baylon

 

[Rollo]

1967

British Lawn Tennis Readers Poll

1 King
2 Jones
3 Durr
4 Richey
5 Turner
6 Casals
7 Bueno
8 Wade
9 Tegart
10 Melville

The poll was abandoned with the start of the Open era.


Lance Tingay-Daily Telegraph

1. Billie Jean King
2. Ann Haydon Jones
3. Francoise Durr
4. Nancy Richey
5. Lesley Turner
6. Rosie Casals
7. Maria Bueno
8. Virginia Wade
9. Kerry Melville
10. Judy Tegart-Australia


Joseph Macauley-World Tennis

1. BJ Moffitt USA
2. A Jones UK
3. F Durr France
4. L Turner Australia
5. N Richey USA
6. R Casals USA
7. Maria Bueno-Brazil
8. V Wade UK
9. K Melville Australia
10. J Tegart Australia

 

[Rollo]

1968


Bud Collins
1 King
2 Wade
3 Richey
4 Court
5 Bueno
6 Jones
7 Tegart
8 Bowrey
9 du Plooy
10 Casals


Lance Tingay

1 King
2 Wade
3 Richey
4 Bueno
5 Court
6 Jones
7 Tegart
8 Du Plooy
9 Bowrey
10 Casals

Rino Tommasi.
1 King
2 Court
3 Richey
4 Wade
5 Tegart
6 Bowrey
7 du Plooy
8 Jones
9 Bueno
10 Durr


Seagram's (=World Tennis rankings)

15 top International Tennis Correspondents from around the world were asked to submit their world rankings for 1968 and the lists were amalgamated.

Panellists included:

Alan Trengove Australian Sun News Pictorial
Joseph McCauley World Tennis Magazine (who suspended their own rankings)
Steve Snider United Press International
Gerald Williams London Daily Mail
Judith Elian L'Equipe - France
George McCann Australian Consolidated Press
Fred Tupper New York Times

1 Billie Jean King 149 points
2 Nancy Richey 118
3 Margaret Court 116
4 Virginia Wade 113
5 Ann Jones 92
6 Judy Tegart 76
7 Maria Bueno 66
8 Annette du Plooy 36
9 Lesley Bowrey 26
10 Rosemary Casals 22

*Note 14 of 15 panelists cited King as #1

Others who received votes were: Julie Heldman 3pts, Gail Sherriff 3, Kathy Harter 3, Francoise Durr 2 and Peaches Bartkowicz 1.

Ulrich Kaiser of Germany
1. Billie Jean King
2. Virginia Wade
3. Ann Jones ---tie
3. Nancy Richey--tie
5. Margaret Court
6. Maria Bueno
7. Judy Tegart
8. Anette DuPlooy
9. Rosie Casals
10. Lesley Bowrey

 

[Rollo]

1969

Bud Collins
1 Court
2 Jones
3 King
4 Richey
5 Heldman
6 Casals
7 Melville
8 Eisel
9 Wade
10 Bowrey

Joseph Macauley of World Tennis
1 Court
2 Jones
3 King
4 Richey
5 Heldman
6 Casals
7 Melville
8 Wade
9 Tegart
10 Bartkowicz

Lance Tingay
1. Court
2. Jones
3. King
4. Richey
5. Heldman
6. Casals
7. Melville
8. Bartkowicz
9. Wade
10. Bowrey

Rino Tomassi
1.Court
2. Jones
3. King
4. Richey
5. Heldman
6. Casals
7. Melville
8. Wade
9. Tegart
10. Bartkowicz

 

[Rollo]

1970

Bud Collins
1 Court
2 King
3 Casals
4 Richey
5 Wade
6 Masthoff
7 Jones
8 Melville
9 Krantzcke
10 Durr


Joseph Macauley of World Tennis
1 Court
2 King
3 Casals
4 Wade
5 Masthoff
6 Melville
7 Heldman
8 Krantzcke
9 Durr
10 Richey

Insufficient Data. A. Jones

Judith Elian of the French magazine L'Equipe
1. Court
2. King
3. Casals
4. Niessen
5. Wade
6. Melville
7. Krantzcke
8. Durr
9. Heldman
10. Richey

Lance Tingay
1. Court
2. King
3. Casals
4. Niessen
5. Wade
6. Jones
7. Melville
8. Krantzcke
9. Heldman
10. Durr

Mike Gibson-Wimbledon Official referee
1. Court
2. King
3. Jones
4. Casals
5. Niessen
6. Wade
7. Melville
8. Krantzcke
9. Heldman
10. Durr

Rino Tomassi
1.Court
2. King
3. Casals
4. Wade
5. Masthoff
6. Melville-Reid
7. Haydon-Jones
8. Durr
9. Krantzcke
10. Goolagong


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

Peter 2003 (A Blast member ranking)

week ending Jan. 4, 1971:

rank...# tourn...points.....(quality)......new.......off... .....
1.........24........13276........(4522).......694. .....0.........Court, Margaret
2.........26........6515.........(2431)........400 ......0.........Wade, Virginia
3.........16........6374.........(2172)........0.. .......0.........King, Billie-Jean
4.........25........5529.........(1829)........0.. .......0.........Melville, Kerry
5.........20........5173.........(2072)........0.. .......182.......Jones, Ann
6.........22........4866.........(1481)........0.. .......0.........Casals, Rosie
7.........22........3779.........(1401)........0.. .......0.........Durr, Francoise
8.........11........3627.........(1383)........0.. .......0.........Niessen, Helga
9.........22........3514.........(1177)........0.. .......0.........Krantzcke, Karen
10.......22........3374.........(1081).......113.. .....0.........Shaw, Winnie Attached Files

Tennis-WR 1971-01-04.txt (18.0 KB, 3 views)

 

[Rollo]

1971

Björn Hellberg (from Tennis Tidning, Sweden )

1) Goolagong
2) King
3) Court
4) Casals
5) Dürr
6) Wade
7) Melville
8) Masthoff
9) Gunter
10 equal) Evert & Dalton

Bud Collins (of the Boston Globe)
1 King
2 Goolagong
3 Court
4 Casals
5 Melville
6 Durr
7 Wade
8 Masthoff
9 Tegart
10 Evert


Frank Rostron (England)
1. Evonne Goolagong
1. Billie Jean King 9co-ranked at #1)
3. Margaret Court
4. Rosie Casals
5. Kerry Melville
6. Francoise Durr
7. Judy Dalton
8. Chris Evert
9. Virginia Wade
10. Helga Mastoff

Joseph Macauley of World Tennis
1 Goolagong
2 King
3 Court
4 Casals
5 Wade
6 Durr
7 Masthoff
8 Melville-Reid
9 Richey
10 Dalton



Lance Tingay
1. Goolagong
2. Court
3. King
4. Casals
5. Melville
6. Dalton
7. Durr
8. Wade
9. Masthoff
10. Evert

L'Equipe (presumably Judith Elian)

1) Goolagong
2) Court
3) King
4) Casals
5) Melville
6) Wade
7) Evert
8) Dalton
9) Gunter
10 Chanfreau and Gourlay


Rex Bellamy of the London Times
1. Goolagong
2. Court
3. King
4. Casals
5. Durr
6. Mastoff
7. Wade
8. Gunter
9. Melville
10. Ann Jones -GB

Rino Tomassi

1. Goolagong
2. Court
3. King
4. Casals
5. Wade
6. Durr
7. Evert
8. Melville-Reid
9.Gourlay
10. Tegart

 

[Rollo]

1972

Bud Collins:
1. King
2-Court
3-Richey
4-Evert
5-Wade
6-Goolagong
7-Casals
8-Melville
9-Durr
10-Morozova

Frank Rostron-British Sportswriter
1. King
2. Goolagong
3. Evert
4. Court
5. Wade
5. Melville
7. Casals
7. Richey
9. Durr
10. Helga Mastoff and Linda Tuero

*Note he had women tied for positions 5, 7 and 10.


John Barrett
1. King
2. Court
3. Evert
4. Goolagong
5. Richey
6. Melville
7. Casals
8. Wade
9. Durr
10. Stove

Lance Tingay
1. King
2. Goolagong
3. Evert
4. Court
5. Melville
6. Wade
7. Casals
8. Gunter
9. Durr
10. Tuero

Rino Tommasi:
1. King
2. Goolagong
3. Evert
4. Court
5. Richey
6. Casals
7. Melville
8. Wade
9. Durr
10. Mastoff


World Tennis Compiled by Neil Amdur

1 King
2 Richey
3 Evert
4 Goolagong
5 Court
6 Melville
7 Casals
8 Wade
9 Durr
10 Overton
= Morozova

 

[Rollo]

1973

Bud Collins
1 Court
2 King
3 Goolagong
4 Evert
5 Casals
6 Wade
7 Melville
8 Richey
9 Heldman
10 Masthoff


John Barrett
1. Court
2. Evert
3. Goolagong
= King
5. Melville
6. Masthoff
7. Casals
8. Wade
9. Morozova
10. Richey


Lance Tingay

1. Court
2. King
3. Evert
4. Goolagong
5. Melville
6. Wade
7. Casals
8. Masthoff
9. Morozova
10. Stove

Rino Tomassi
1. Court
2. Evert
3. King
4. Goolagong
5. Melville
6. Casals
7. Richey
8. Wade
9. Masthoff
10. Morozova


World Tennis-complied by Neil Amdur
1 Court
2 Evert
3 King
4 Goolagong
5 Melville
6 Wade
7 Casals
8 Morozova
9 Richey
10 Durr

 

[Rollo]

1974

Bud Collins
1 King
2 Goolagong
3 Evert
4 Wade
5 Heldman
6 Casals
7 Melville
8 Morozova
9 Hunt
10 Durr

John Barrett
1. Evert
2. King
3. Goolagong
4. Morozova
5. Wade
6. Melville
7. Navratilova
8. Heldman
9. Masthoff
10. Casals


Lance Tingay
1. Evert
2. King
3. Goolagong
4. Morozova
5. Melville
6. Casals
7. Wade
8. Masthoff
9. Heldman
10. Nancy Richey Gunter-US

Rino Tomassi
1. Evert
2. King
3. Goolagong
4. Wade
5. Melville-Reid
6. Morozova
7. Casals
8. Masthoff
9. Richey
10. Heldman


World Tennis (editors)
1 Evert
2 King
3 Goolagong
4 Morozova
5 Melville
6 Casals
7 Wade
8 Heldman
9 Richey
10 Navratilova
= Durr

 

[Rollo]

1975


According to the 2009 official WTA media guide (page 239), the WTA's 1975 year end rankings were as follows:

1. Chris Evert 15.79 points, 22 tournaments
2. Virginia Wade 11.13 points, 20 tournaments
3. Martina Navratilova 10.97 points, 25 tournaments
4. Billie Jean King 10.02 points, 6 tournaments
5. Evonne Goolagong Cawley 9.74 points, 20 tournaments
6. Margaret Court 8.84 points, 13 tournaments
7. Olga Morozova 6.32 points, 22 tournaments
8. Nancy Richey 6.24 points, 17 tournaments
9. Francoise Durr 6.19 points, 22 tournaments
10. Kerry Melville Reid 6.03 points, 18 tournaments

Bud Collins
1. Chris Evert
2. Billie Jean King
3. Evonne Goolagong
4. Martina Navratilova
5. Virginia Wade
6. Margaret Court
7. Olga Morozova
8. Nancy Richey
9. Francoise Durr
10. Rosie Casals


Chris Evert (World Tennis asked her for a list)
1. Chris Evert
2. Billie Jean King
3. Evonne Goolagong
4. Martina navratilova
5. Virginia Wade
6. Margaret Court
7. Olga Morozova
8. Nancy Richey
9. Francoise Durr
10. Betty Stove

Evert's note read: "P.S. The last 3 were unbelievavbly hard!".

John Barrett
1. Evert
2. King
3. Goolagong
4. Navratilova
5. Wade
6. Court
7. Morozova
8. Melville
9. Stove
10. Sawamatsu


World Tennis
1 Evert
2 King
3 Navratilova
4 Goolagong
5 Wade
6 Court
7 Morozova
8 Richey
9 Durr
10 Casals

 

[Rollo]

1976

Bud Collins
1. Evert
2. Goolagong
3. Wade
4. Navratilova
5. Barker
6. Stove
7. Fromholtz
8. Jausovec
9. Casals
10. Durr


John Barrett
1. Evert
2. Goolagong
3. Wade
4. Barker
5. Casals
6. Navratilova
7. Jausovec
8. Durr
9. Fromholtz
10. Tomanova


World Tennis
1 Evert
2 Goolagong
3 Wade
4 Casals
5 Navratilova
6 Barker
7 Jausovec
8 Fromholtz
9 Stove
10 Holladay

 

[Rollo]

1977

Bud Collins
1 Evert
2 Wade
3 Navratilova
4 Barker
5 King
6 Stove
7 Turnbull
8 Casals
9 Reid
10 Fromholtz

John Barrett-Financial Times
1 Evert
2 Wade
3 King
4 Stove
5 Navratilova
6 Barker
7 Turnbull
8 Casals
9 Jausovec
10 Reid

Judith Elian, L'Equipe, Paris
1 Evert
2 Wade
3 King
4 Navratilova
5 Stove
6 Barker
7 Turnbull
8 Reid
9 Casals
10 Jausovec


Lance Tingay-World of Tennis
1. Evert
2. Wade
3. King
4. Navratilova
5. Barker
6. Reid
7. Turnbull
8. Casals
9. Stove
10. Jausovec

Peter Bodo, Tennis Magazine, USA
1 Evert
2 Wade
3 Navratilova
4 King
5 Barker
6 Stove
7 Turnbull
8 Fromholtz
9 Casals
10 Reid

Rino Tommasi of Tennis Club, Rome
1 Evert
2 Navratilova
3 King
4 Barker
5 Wade
6 Casals
7 Reid
8 Stove
9 Jausocec
10 Turnbull

*Note: This is from a panel ranking Rino submitted to Tennis USA. He also had another list (in Wolrd of Tennis) where he has Tracy Austin at #7!

Wataru Tsukagoshi of Tennis Magazine of Japan, Tokyo
1 Evert
2 Wade
3 Stove
4 Navratilova
5 Barker
6 Turnbull
7 King
8 Jausovec
9 Reid
10 Fromholtz

WTA Computer Rankings (as of Dec 17, 1977)
1 Evert
2 Navratilova
3 King
4 Barker
5 Wade
6 Casals
7 Stove
8 Fromholtz
9 Reid
10 Turnbull


World Tennis
1 Evert
2 Wade
3 Navratilova
4 Barker
5 King
6 Stove
7 Turnbull
8 Casals
9 Reid
10 Fromholtz

 

[Rollo]

1978

Bud Collins
1. Navratilova
2. Evert
3. Goolagong
4. Wade
5. King
6. Austin
7. Shriver
8. Ruzici
9. Turnbull
10. Reid

Joe McCauley of Tennis Australia
1. Evert
2. Navratilova
3. Goolagong
4. Wade
5. King
6. [Stove]
7. Turnbull
8. Austin
9. [Ruzici]
10. Reid


*Unsure about positions 6 and 9

John Barrett
1. Evert
2. Navratilova
3. Goolagong
4. Wade
5. Turnbull
6. Ruzici
7. King
8. Austin
= Shriver
10. Jausovec


World Tennis
1 Evert
2 Navratilova
3 Goolagong
4 Wade
5 King
6 Stove
7 Turnbull
8 Austin
9 Ruzici
10 Shriver

 

[Rollo]

1979

Alan Trengrove, Tennis Magazine, Australia
1. Navratilova
2. Evert
3. Austin
4. Goolagong
5. King
6. Fromholtz
7. Turnbull
8. Wade
9. Reid
10. Stevens

Bud Collins
1. Navratilova
2. Austin
3. Evert
4. Goolagong
5. King
6. Turnbull
7. Fromholtz
8. Reid
9. Wade
10. Marsikova

Jeffrey Bairstow Tennis magazine, USA
1. Navratilova
2. Austin
3. Evert
4. Goolagong
5. King
6. Turnbull
7. Fromholtz
8. Reid
9. Wade
10. Jordan


John Barrett Financial Times of London
1. Navratilova
2. Austin
3. Evert
4. Goolagong
5. King
6. Fromholtz
7. Wade
8. Turnbull
9. Melville
10. Ruzici

Joe Mccauley of Tennis Australia
1. Martina Navratilova
2. Tracy Austin
3. Chris Lloyd
4. Evonne Cawley
5. Billie Jean King
6. Dianne Fromholtz
7. Wendy Turnbull
8. Virginia Wade
9. Kerry Reid
10. Sue Barker

Judith Elian, L'Equipe, Paris
1. Evert
2. Navratilova
3. Austin
4. Goolagong
5. Wade
6. King
7. Reid
8. Turnbull
9. Fromholtz
10. Marsikova

Peter Bodo Tennis Magazine, USA
1. Navratilova
2. Austin
3. Evert
4. Goolagong
5. Turnbull
6. Fromholtz
7. King
8. Wade
9. Reid
10. Jordan

Rino Tommasi, Tennis Club, Rome
1. Navratilova
2. Evert
3. Austin
4. Goolagong
5. King
6. Fromholtz
7. Turnbull
8. Jordan
9. Wade
10. Reid

Wataru Tsukagoshi, Tennis Magazine of Japan, Tokyo
1. Navratilova
2. Austin
3. Evert
4. King
5. Goolagong
6. Fromholtz
7. Wade
8. Turnbull
9. Jordan
10. Reid


World Tennis
1 Navratilova
2 Austin
3 Evert Lloyd
4 Goolagong
5 Turnbull
6 Fromholtz
7 King
8 Wade
9 Barker
10 Ruzici

 

[Rollo]

1980

John Barrett
1. Evert
2. Austin
3. Navratilova
4. Goolagong
5. Mandlikova
6. Jaeger
7. Turnbull
8. Ruzici
9. Fromholtz
10. Shriver


World Tennis
1 Lloyd
2 Austin
3 Navratilova
4 Goolagong
5 Mandlikova
6 Jaegar
7 King
8 Turnbull
9 Ruzici
10 Shriver

 

[Rollo]

1981

Alan Trengrove, Tennis Magazine, Australia
1. Chris Evert Lloyd
2. Martina Navratilova
3. Tracy Austin
4. Hana Mandlikova
5. Andrea Jaeger
6. Pam Shriver
7. Sylvia Hanika
8. Wendy Turnbull
8, Virginia Ruzici
10. Sue Barker


Alexander McNab, Tennis Magazine, USA.
1. Chris Evert Lloyd
2. Martina Navratilova
3. Tracy Austin
4. Hana Mandlikova
5. Andrea Jaeger
6. Pam Shriver
7. Sylvia Hanika
8, Virginia Ruzici
9. Wendy Turnbull
10. Mima Jausovec

John Barrett, The Financial Times, London
1. Austin
= Evert
3. Mandlikova
4. Navratilova
5. Jaeger
6. Turnbull
7. Shriver
8. Ruzici
9. Hanika
10. Jausovec

Judith Elian-L'Equipe, Paris
1. Chris Evert Lloyd
2. Hana Mandlikova
3. Treacy Austin
4. Martina Navratilova
5. Andrea Jaeger
6. Pam Shriver
7. Sylvia Hanika
8. Mima Jausovec
9. Virginia Ruzici
10. (tie) B. Bunge, Regina Marsikova


Peter Bodo, Tennis Magazine, USA.
1. Chris Evert Lloyd
2. Martina Navratilova
3. Tracy Austin
4. Hana Mandlikova
5. Andrea Jaeger
6. Pam Shriver
7. Sylvia Hanika
8, Virginia Ruzici
9. Wendy Turnbull
10. Mima Jausovec

Rimo Tomasi, Tennis Club, Rome.
1. Chris Evert Lloyd
2. Tracy Austin
3. Hana Mandlikova
4. Martina Navratilova
5. Andrea Jaeger
6. Sylvia Hanika
7. Pam Shriver
8. Barbara Potter
9. Wendy Turnbull
10. Virginia Ruzici

Waturu Tsukagoshi, Tennis Magazine of Japan, Tokyo
1. Chris Evert Lloyd
2. Tracy Austin
3. Martina Navratilova
4. Andrea Jaeger
5. Hana Mandlikova
6. Pam Shriver
7. Sylvia Hanika
8. Barbara Potter
9. Mima Jausovec
10. (Tie) Bettina Bunge, Regina Marsikova


World Tennis, USA
1 Lloyd
2 Austin
3 Navratilova
4 Mandlikova
5 Jaegar
6 Shriver
7 Hanika
8 Jausovec
9 Ruzici
10 Potter

 

[Rollo]

1982

John Barrett-Financial Times
1. Navratilova
2. Evert
3. Jaeger
4. Mandlikova
5. Austin
6. Ruzici
7. Bunge
8. Shriver
9. Potter
10 Garrison
= Turnbull

World Tennis (US magazine)
1. Navratilova
2. Evert
3. Jaeger
4. Mandlikova
5. Shriver
6. Turnbull
7. Potter
8. Bunge
9. Austin
10. Hanika