The WTA Tier I tournaments are ten Women's Tennis Association (WTA) tennis tournaments held throughout the year in various locations around the world, chiefly in Europe and North America. Tier I is the upper of 4 tiers that make up the WTA Tour. Two of the ten Tier I tournaments (Indian Wells and Miami) are played simultaneously with the ATP Tour Masters Series tournaments in those cities.

Events

From 2008 season

Tournament	Also currently known as	Location	Court surface	Tier I from	Defending champion	Official website
Doha	Qatar Total Open	Doha, Qatar	Hard	2008-	Maria Sharapova	http://www.qatartennis.org/
Indian Wells	Pacific Life Open	Indian Wells, CA, United States	Hard	1996-	Ana Ivanovic	http://www.pacificlifeopen.com
Miami	Sony Ericsson Open	Key Biscayne, FL, United States	Hard	1988-	Serena Williams	http://www.sonyericssonopen.com/
Charleston	Family Circle Cup	Charleston, SC, United States	Green Clay	1990-	Serena Williams	http://www.familycirclecup.com
Berlin	Qatar Total German Open	Berlin, Germany	Red Clay	1988-	Dinara Safina	http://www.german-open.org
Rome	Telecom Italia Masters	Rome, Italy	Red Clay	1990-	Jelena Jankovic	http://www.telecomitaliamasters.it
Canada	Rogers Cup presented by A. E.	Montreal / Toronto, Canada	Hard	1990-	Dinara Safina	http://www.rogerscup.com
Tokyo	Toray Pan Pacific Open	Tokyo, Japan	Hard	1993-	Dinara Safina	http://www.toray-ppo.co.jp
Moscow	Kremlin Cup	Moscow, Russia	Supreme (I)	1997-	Jelena Jankovic or Vera Zvonareva	http://www.kremlincup.ru

Past Tier I tournaments

Tournament	Also currently known as	Location	Court surface	Tier I status	Official website
San Diego	Acura Classic	San Diego, CA, USA	Hard	2004-2007	http://www.acuraclassic.com
Zürich	Zürich Open	Zürich, Switzerland	Hard (I)	1993-2007	http://www.zurichopen.net
Boca Raton	VS of Florida	Boca Raton, FL, United States	Hard	1991-1992	n/a
Chicago	Ameritech Cup Chicago	Chicago, IL, United States	Carpet (I)	1990	n/a
Philadelphia	Advanta Championships Philadelphia	Philadelphia, PA, United States	Carpet (I)	1993-1995	http://www.advantachampionships.com/

Results

1988

Tournament	Winner	Runner-up	Score
Key Biscayne	Steffi Graf	Chris Evert	6-4, 6-4
Berlin	Steffi Graf	Helena Suková	6-3, 6-2

1989

Tournament	Winner	Runner-up	Score
Key Biscayne	Gabriela Sabatini	Chris Evert	6-1, 4-6, 6-2
Berlin	Steffi Graf	Gabriela Sabatini	6-3, 6-1

1990

Tournament	Winner	Runner-up	Score
Chicago	Martina Navrátilová	Manuela Maleeva-Fragniere	6-3, 6-2
Key Biscayne	Monica Seles	Judith Wiesner	6-1, 6-2
Hilton Head	Martina Navrátilová	Jennifer Capriati	6-2, 6-4
Rome	Monica Seles	Martina Navrátilová	6-1, 6-1
Berlin	Monica Seles	Steffi Graf	6-4, 6-3
Toronto	Steffi Graf	Katerina Maleeva	6-1, 6-7(6), 6-3

1991

Tournament	Winner	Runner-up	Score
Boca Raton	Gabriela Sabatini	Steffi Graf	6-4, 7-6(6)
Key Biscayne	Monica Seles	Gabriela Sabatini	6-3, 7-5
Hilton Head	Gabriela Sabatini	Leila Meskhi	6-1, 6-1
Rome	Gabriela Sabatini	Monica Seles	6-3, 6-2
Berlin	Steffi Graf	Arantxa Sánchez Vicario	6-3, 4-6, 7-6(6)
Toronto	Jennifer Capriati	Katerina Maleeva	6-2, 6-3

1992

Tournament	Winner	Runner-up	Score
Boca Raton	Steffi Graf	Conchita Martínez	3-6, 6-2, 6-0
Key Biscayne	Arantxa Sánchez Vicario	Gabriela Sabatini	6-1, 6-4
Hilton Head	Gabriela Sabatini	Conchita Martínez	6-1, 6-4
Rome	Gabriela Sabatini	Monica Seles	7-5, 6-4
Berlin	Steffi Graf	Arantxa Sánchez Vicario	4-6, 7-5, 6-2
Montreal	Arantxa Sánchez Vicario	Monica Seles	6-3, 4-6, 6-4

1993

Tournament	Winner	Runner-up	Score
Yokohama *	Martina Navrátilová	Larisa Savchenko-Neiland	6-2, 6-2
Key Biscayne	Arantxa Sánchez Vicario	Steffi Graf	6-4, 3-6, 6-3
Hilton Head	Steffi Graf	Arantxa Sánchez Vicario	7-6(8), 6-1
Rome	Conchita Martínez	Gabriela Sabatini	7-5, 6-1
Berlin	Steffi Graf	Gabriela Sabatini	7-6(3), 2-6, 6-4
Toronto	Steffi Graf	Jennifer Capriati	6-1, 0-6, 6-3
Zurich	Manuela Maleeva-Fragniere	Martina Navrátilová	6-3, 7-6(1)
Philadelphia	Conchita Martínez	Steffi Graf	6-3, 6-3

(*) In 1993, the Toray Pan Pacific Open was held in Yokohama instead of Tokyo.

1994

Tournament	Winner	Runner-up	Score
Tokyo	Steffi Graf	Martina Navrátilová	6-2, 6-4
Key Biscayne	Steffi Graf	Natasha Zvereva	4-6, 6-1, 6-2
Hilton Head	Conchita Martínez	Natasha Zvereva	6-4, 6-0
Rome	Conchita Martínez	Martina Navrátilová	7-6(5), 6-4
Berlin	Steffi Graf	Brenda Schultz	7-6(6), 6-4
Montreal	Arantxa Sánchez Vicario	Steffi Graf	7-5, 1-6, 7-6(4)
Zurich	Magdalena Maleeva	Natasha Zvereva	7-5, 3-6, 6-4
Philadelphia	Anke Huber	Mary Pierce	6-0, 6-7(4), 7-5

1995

Tournament	Winner	Runner-up	Score
Tokyo	Kimiko Date	Lindsay Davenport	6-1, 6-2
Key Biscayne	Steffi Graf	Kimiko Date	6-1, 6-4
Hilton Head	Conchita Martínez	Magdalena Maleeva	6-1, 6-1
Rome	Conchita Martínez	Arantxa Sánchez Vicario	6-3, 6-1
Berlin	Arantxa Sánchez Vicario	Magdalena Maleeva	6-4, 6-1
Toronto	Monica Seles	Amanda Coetzer	6-0, 6-1
Zurich	Iva Majoli	Mary Pierce	6-4, 6-4
Philadelphia	Steffi Graf	Lori McNeil	6-1, 4-6, 6-3

1996

Tournament	Winner	Runner-up	Score
Tokyo	Iva Majoli	Arantxa Sánchez Vicario	6-4, 6-1
Indian Wells	Steffi Graf	Conchita Martínez	7-6(5), 7-6(5)
Key Biscayne	Steffi Graf	Chanda Rubin	6-1, 6-3
Hilton Head	Arantxa Sánchez Vicario	Barbara Paulus	6-2, 2-6, 6-2
Rome	Conchita Martínez	Martina Hingis	6-2, 6-3
Berlin	Steffi Graf	Karina Habšudová	4-6, 6-2, 7-5
Montreal	Monica Seles	Arantxa Sánchez Vicario	6-1, 7-6(2)
Zurich	Jana Novotná	Martina Hingis	6-2, 6-2

1997

Tournament	Winner	Runner-up	Score
Tokyo	Martina Hingis	Steffi Graf	Walkover
Indian Wells	Lindsay Davenport	Irina Spîrlea	6-2, 6-1
Key Biscayne	Martina Hingis	Monica Seles	6-2, 6-1
Hilton Head	Martina Hingis	Monica Seles	3-6, 6-3, 7-6(5)
Rome	Mary Pierce	Conchita Martínez	6-4, 6-0
Berlin	Mary Joe Fernández	Mary Pierce	6-4, 6-2
Toronto	Monica Seles	Anke Huber	6-2, 6-4
Zurich	Lindsay Davenport	Nathalie Tauziat	7-6(3), 7-5
Moscow	Jana Novotná	Ai Sugiyama	6-3, 6-4

1998

Tournament	Winner	Runner-up	Score
Tokyo	Lindsay Davenport	Martina Hingis	6-3, 6-3
Indian Wells	Martina Hingis	Lindsay Davenport	6-3, 6-4
Key Biscayne	Venus Williams	Anna Kournikova	2-6, 6-4, 6-1
Hilton Head	Amanda Coetzer	Irina Spîrlea	6-3, 6-4
Rome	Martina Hingis	Venus Williams	6-3, 2-6, 6-3
Berlin	Conchita Martínez	Amélie Mauresmo	6-4, 6-4
Montreal	Monica Seles	Arantxa Sánchez Vicario	6-3, 6-2
Zurich	Lindsay Davenport	Venus Williams	6-3, 6-4
Moscow	Mary Pierce	Monica Seles	7-6(2), 6-3

1999

Tournament	Winner	Runner-up	Score
Tokyo	Martina Hingis	Amanda Coetzer	6-2, 6-1
Indian Wells	Serena Williams	Steffi Graf	6-3, 3-6, 7-5
Key Biscayne	Venus Williams	Serena Williams	6-1, 4-6, 6-4
Hilton Head	Martina Hingis	Anna Kournikova	6-4, 6-3
Rome	Venus Williams	Mary Pierce	6-4, 6-2
Berlin	Martina Hingis	Julie Halard-Decugis	6-0, 6-1
Toronto	Martina Hingis	Monica Seles	6-4, 6-4
Zurich	Venus Williams	Martina Hingis	6-3, 6-4
Moscow	Nathalie Tauziat	Barbara Schett	2-6, 6-4, 6-1

2000

Tournament	Winner	Runner-up	Score
Tokyo	Martina Hingis	Sandrine Testud	6-3, 7-5
Indian Wells	Lindsay Davenport	Martina Hingis	4-6, 6-4, 6-0
Miami	Martina Hingis	Lindsay Davenport	6-3, 6-2
Hilton Head	Mary Pierce	Arantxa Sánchez-Vicario	6-1, 6-0
Berlin	Conchita Martínez	Amanda Coetzer	6-1, 6-2
Rome	Monica Seles	Amélie Mauresmo	6-2, 7-6(4)
Montreal	Martina Hingis	Serena Williams	0-6, 6-3, 3-0 retired
Zurich	Martina Hingis	Lindsay Davenport	6-2, 4-6, 7-5
Moscow	Martina Hingis	Anna Kournikova	6-3, 6-1

2001

Tournament	Winner	Runner-up	Score
Tokyo	Lindsay Davenport	Martina Hingis	6-7(4), 6-4, 6-2
Indian Wells	Serena Williams	Kim Clijsters	4-6, 6-4, 6-2
Miami	Venus Williams	Jennifer Capriati	4-6, 6-1, 7-6(4)
Charleston	Jennifer Capriati	Martina Hingis	6-0, 4-6, 6-4
Berlin	Amélie Mauresmo	Jennifer Capriati	6-4, 2-6, 6-3
Rome	Jelena Dokić	Amélie Mauresmo	7-6(3), 6-1
Toronto	Serena Williams	Jennifer Capriati	6-1, 6-7(7), 6-3
Moscow	Jelena Dokić	Elena Dementieva	6-3, 6-3
Zurich	Lindsay Davenport	Jelena Dokić	6-3, 6-1

2002

Tournament	Winner	Runner-up	Score
Tokyo	Martina Hingis	Monica Seles	7-6(6), 4-6, 6-3
Indian Wells	Daniela Hantuchova	Martina Hingis	6-3, 6-4
Miami	Serena Williams	Jennifer Capriati	7-5, 7-6
Charleston	Iva Majoli	Patty Schnyder	6-3, 6-4
Berlin	Justine Henin	Serena Williams	6-2, 1-6, 7-6(5)
Rome	Serena Williams	Justine Henin	7-6, 6-4
Montreal	Amelie Mauresmo	Jennifer Capriati	6-4, 6-1
Moscow	Magdalena Maleeva	Lindsay Davenport	5-7, 6-3, 7-6(4)
Zurich	Patty Schnyder	Lindsay Davenport	6-7(5), 7-6(8), 6-3

2003

Tournament	Winner	Runner-up	Score
Tokyo	Lindsay Davenport	Monica Seles	6-7(6), 6-1, 6-2
Indian Wells	Kim Clijsters	Lindsay Davenport	6-4, 7-5
Miami	Serena Williams	Jennifer Capriati	4-6, 6-4, 6-1
Charleston	Justine Henin	Serena Williams	7-6(5), 6-4
Berlin	Justine Henin	Kim Clijsters	6-4, 4-6, 7-5
Rome	Kim Clijsters	Amélie Mauresmo	3-6, 7-6(3), 6-0
Toronto	Justine Henin	Lina Krasnoroutskaya	6-1, 6-0
Moscow	Anastasia Myskina	Amélie Mauresmo	6-2, 6-4
Zurich	Justine Henin	Jelena Dokic	6-0, 6-4

2004

Tournament	Winner	Runner-up	Score
Tokyo	Lindsay Davenport	Magdalena Maleeva	6-4, 6-1
Indian Wells	Justine Henin	Lindsay Davenport	6-1, 6-4
Miami	Serena Williams	Elena Dementieva	6-1, 6-1
Charleston	Venus Williams	Conchita Martinez	2-6, 6-2, 6-1
Berlin	Amélie Mauresmo	Venus Williams	Walkover
Rome	Amélie Mauresmo	Jennifer Capriati	3-6, 6-3, 7-6(6)
San Diego	Lindsay Davenport	Anastasia Myskina	6-1, 6-1
Montreal	Amélie Mauresmo	Elena Likhovtseva	6-1, 6-0
Moscow	Anastasia Myskina	Elena Dementieva	7-5, 6-0
Zurich	Alicia Molik	Maria Sharapova	4-6, 6-2, 6-3

2005

Tournament	Winner	Runner-up	Score
Tokyo	Maria Sharapova	Lindsay Davenport	6-1, 3-6, 7-6(5)
Indian Wells	Kim Clijsters	Lindsay Davenport	6-4, 4-6, 6-2
Miami	Kim Clijsters	Maria Sharapova	7-5, 6-3
Charleston	Justine Henin	Elena Dementieva	7-5, 6-4
Berlin	Justine Henin	Nadia Petrova	6-3, 4-6, 6-3
Rome	Amélie Mauresmo	Patty Schnyder	2-6, 6-3, 6-4
San Diego	Mary Pierce	Ai Sugiyama	6-3, 6-0
Toronto	Kim Clijsters	Justine Henin	7-5, 6-1
Moscow	Mary Pierce	Francesca Schiavone	6-4, 6-3
Zurich	Lindsay Davenport	Patty Schnyder	7-6, 6-3

2006

Tournament	Winner	Runner-up	Score
Tokyo	Elena Dementieva	Martina Hingis	6-2, 6-0
Indian Wells	Maria Sharapova	Elena Dementieva	6-1, 6-2
Miami	Svetlana Kuznetsova	Maria Sharapova	6-4, 6-3
Charleston	Nadia Petrova	Patty Schnyder	6-3, 4-6, 6-1
Berlin	Nadia Petrova	Justine Henin	4-6, 6-4, 7-5
Rome	Martina Hingis	Dinara Safina	6-2, 7-5
San Diego	Maria Sharapova	Kim Clijsters	7-5, 7-5
Montreal	Ana Ivanović	Martina Hingis	6-2, 6-3
Moscow	Anna Chakvetadze	Nadia Petrova	6-4, 6-4
Zurich	Maria Sharapova	Daniela Hantuchova	6-1, 4-6, 6-3

2007

Tournament	Winner	Runner-up	Score
Tokyo	Martina Hingis	Ana Ivanović	6-4, 6-2
Indian Wells	Daniela Hantuchová	Svetlana Kuznetsova	6-3, 6-4
Miami	Serena Williams	Justine Henin	0-6, 7-5, 6-3
Charleston	Jelena Janković	Dinara Safina	6-2, 6-2
Berlin	Ana Ivanović	Svetlana Kuznetsova	3-6, 6-4, 7-6(4)
Rome	Jelena Janković	Svetlana Kuznetsova	7-5, 6-1
San Diego	Maria Sharapova	Patty Schnyder	6-2, 3-6, 6-0
Toronto	Justine Henin	Jelena Janković	7-6(3), 7-5
Moscow	Elena Dementieva	Serena Williams	5-7, 6-1, 6-1
Zurich	Justine Henin	Tatiana Golovin	6-4, 6-4

2008

Tournament	Winner	Runner-up	Score
Doha	Maria Sharapova	Vera Zvonareva	6-1, 2-6, 6-0
Indian Wells	Ana Ivanović	Svetlana Kuznetsova	6-4, 6-3
Miami	Serena Williams	Jelena Janković	6-1, 5-7, 6-3
Charleston	Serena Williams	Vera Zvonareva	6-4, 3-6, 6-3
Berlin	Dinara Safina	Elena Dementieva	3-6, 6-2, 6-2
Rome	Jelena Janković	Alizé Cornet	6-2, 6-2
Montreal	Dinara Safina	Dominika Cibulkova	6-2, 6-1
Tokyo	Dinara Safina	Svetlana Kuznetsova	6-1, 6-3
Moscow

Winners

Year	Doha	Tokyo	Indian Wells	Miami	Charleston	Berlin	Rome	San Diego	Canada	Moscow	Zurich
08	Sharapova (6/6)	Safina (3/3)	Ivanović (3/3)	S.Williams (9/10)	S.Williams (10/10)	Safina (1/3)	Jankovic (3/3)	-	Safina (2/3)		-
07	-	Hingis (17/17)	Hantuchová (2/2)	S.Williams (8/10)	Janković (1/3)	Ivanović (2/3)	Janković (2/3)	Sharapova (5/6)	Henin (9/10)	Dementieva (2/2)	Henin (10/10)
06	-	Dementieva (1/2)	Sharapova (2/6)	Kuznetsova (1/1)	Petrova (1/2)	Petrova (2/2)	Hingis (16/17)	Sharapova (3/6)	Ivanović (1/3)	Chakvetadze (1/1)	Sharapova (4/6)
05	-	Sharapova (1/6)	Clijsters (3/5)	Clijsters (4/5)	Henin (7/10)	Henin (8/10)	Mauresmo (6/6)	Pierce (4/5)	Clijsters (5/5)	Pierce (5/5)	Davenport (11/11)
04	-	Davenport (9/11)	Henin (6/10)	S.Williams (7/10)	V.Williams (6/6)	Mauresmo (3/6)	Mauresmo (4/6)	Davenport (10/11)	Mauresmo (5/6)	Myskina (2/2)	Molik (1/1)
03	-	Davenport (8/11)	Clijsters (1/5)	S.Williams (6/10)	Henin (2/10)	Henin (3/10)	Clijsters (2/5)	-	Henin (4/10)	Myskina (1/2)	Henin (5/10)
02	-	Hingis (15/17)	Hantuchová (1/2)	S.Williams (4/10)	Majoli (3/3)	Henin (1/10)	S.Williams (5/10)	-	Mauresmo (2/6)	M.Maleeva (2/2)	Schnyder (1/1)
01	-	Davenport (6/11)	S.Williams (2/10)	V.Williams (5/6)	Capriati (1/1)	Mauresmo (1/6)	Dokić (1/2)	-	S.Williams (3/10)	Dokić (2/2)	Davenport (7/11)
00	-	Hingis (10/17)	Davenport (5/11)	Hingis (11/17)	Pierce (3/5)	Martinez (9/9)	Seles (9/9)	-	Hingis (12/17)	Hingis (13/17)	Hingis (14/17)
99	-	Hingis (6/17)	S.Williams (1/10)	V.Williams (2/6)	Hingis (7/17)	Hingis (8/17)	V.Williams (3/6)	-	Hingis (9/17)	Tauziat (1/1)	V.Williams (4/6)
98	-	Davenport (3/11)	Hingis (4/17)	V.Williams (1/6)	Coetzer (1/1)	Martinez (8/9)	Hingis (5/17)	-	Seles (8/9)	Pierce (2/5)	Davenport (4/11)
97	-	Hingis (1/17)	Davenport (1/11)	Hingis (2/17)	Hingis (3/17)	M.Fernandez (1/1)	Pierce (1/5)	-	Seles (7/9)	Novotna (2/2)	Davenport (2/11)
96	-	Majoli (2/3)	Graf (16/18)	Graf (17/18)	A.Sanchez Vicario (6/6)	Graf (18/18)	Martinez (7/9)	-	Seles (6/9)	-	Novotna (1/2)
95	-	Date (1/1)	-	Graf (14/18)	Martinez (5/9)	A.Sanchez Vicario (5/6)	Martinez (6/9)	-	Seles (5/9)	-	Majoli (1/3)
94	-	Graf (11/18)	-	Graf (12/18)	Martinez (3/9)	Graf (13/18)	Martinez (4/9)	-	A.Sanchez Vicario (4/6)	-	M.Maleeva (1/2)
93	-	Navratilova (3/3)	-	A.Sanchez Vicario (3/6)	Graf (8/18)	Graf (9/18)	Martinez (1/9)	-	Graf (10/18)	-	Ma.Maleeva-Fragnière (1/1)

Singles Titles Matrix

Since 1988:

Rank	Player	DOH	IND	MIA	CHA	BER	ROM	CAN	TOK	MOS	SAN	ZUR	CHI	BOC	PHI	Total
1	Steffi Graf	-	1	4	1	7	-	2	1	-	-	-	-	1	1	18
2	Martina Hingis	-	1	2	2	1	2	2	5	1	-	1	-	-	-	17
3	Lindsay Davenport	-	2	-	-	-	-	-	4	-	1	4	-	-	-	11
4=	Justine Henin	-	1	-	2	3	-	2	-	-	-	2	-	-	-	10
4=	Serena Williams	-	2	5	1	-	1	1	-	-	-	-	-	-	-	10
6=	Conchita Martinez	-	-	-	2	2	4	-	-	-	-	-	-	-	1	9
6=	/ Monica Seles	-	-	2	-	1	2	4	-	-	-	-	-	-	-	9
8=	Amélie Mauresmo	-	-	-	-	2	2	2	-	-	-	-	-	-	-	6
8=	Gabriela Sabatini	-	-	1	2	-	2	-	-	-	-	-	-	1	-	6
8=	Arantxa Sánchez Vicario	-	-	2	1	1	-	2	-	-	-	-	-	-	-	6
8=	Maria Sharapova	1	1	-	-	-	-	-	1	-	2	1	-	-	-	6
8=	Venus Williams	-	-	3	1	-	1	-	-	-	-	1	-	-	-	6
13=	Kim Clijsters	-	2	1	-	-	1	1	-	-	-	-	-	-	-	5
13=	Mary Pierce	-	-	-	1	-	1	-	-	2	1	-	-	-	-	5
15=	Ana Ivanović	-	1	-	-	1	-	1	-	-	-	-	-	-	-	3
15=	Jelena Janković	-	-	-	1	-	2	-	-	-	-	-	-	-	-	3
15=	Iva Majoli	-	-	-	1	-	-	-	1	-	-	1	-	-	-	3
15=	Martina Navratilova	-	-	-	1	-	-	-	1	-	-	-	1	-	-	3
15=	Dinara Safina	-	-	-	-	1	-	1	1	-	-	-	-	-	-	3
19=	Jennifer Capriati	-	-	-	1	-	-	1	-	-	-	-	-	-	-	2
19=	Elena Dementieva	-	-	-	-	-	-	-	1	1	-	-	-	-	-	2
19=	/ Jelena Dokić	-	-	-	-	-	1	-	-	1	-	-	-	-	-	2
19=	Daniela Hantuchová	-	2	-	-	-	-	-	-	-	-	-	-	-	-	2
19=	Magdalena Maleeva	-	-	-	-	-	-	-	-	1	-	1	-	-	-	2
19=	Anastasia Myskina	-	-	-	-	-	-	-	-	2	-	-	-	-	-	2
19=	Jana Novotná	-	-	-	-	-	-	-	-	1	-	1	-	-	-	2
19=	Nadia Petrova	-	-	-	1	1	-	-	-	-	-	-	-	-	-	2
27=	Anna Chakvetadze	-	-	-	-	-	-	-	-	1	-	-	-	-	-	1
27=	Amanda Coetzer	-	-	-	1	-	-	-	-	-	-	-	-	-	-	1
27=	Kimiko Date	-	-	-	-	-	-	-	1	-	-	-	-	-	-	1
27=	Mary Joe Fernandez	-	-	-	-	1	-	-	-	-	-	-	-	-	-	1
27=	Anke Huber	-	-	-	-	-	-	-	-	-	-	-	-	-	1	1
27=	Svetlana Kuznetsova	-	-	1	-	-	-	-	-	-	-	-	-	-	-	1
27=	/ Manuela Maleeva-Fragnière	-	-	-	-	-	-	-	-	-	-	1	-	-	-	1
27=	Alicia Molik	-	-	-	-	-	-	-	-	-	-	1	-	-	-	1
27=	Patty Schnyder	-	-	-	-	-	-	-	-	-	-	1	-	-	-	1
27=	Nathalie Tauziat	-	-	-	-	-	-	-	-	1	-	-	-	-	-	1

• DOH = Doha, IND = Indian Wells, MIA = Miami, CHA = Charleston, BER = Berlin, ROM = Rome, CAN = Canada, TOK = Tokyo, MOS = Moscow, SAN = San Diego, ZUR = Zürich, CHI = Chicago, BOC = Boca Raton, PHI = Philadelphia.
• Miami before 2000 was held in Key-Biscayne, Charleston before 2001 was held in Hilton Head, Tokyo in 1993 was held in Yokohama; Chicago has been a Tier I only in 1990, Boca Raton in 1991 and 1992, Philadelphia from 1993 to 1995, Zürich from 1993 to 2007 and San Diego from 2004 to 2007.
• Active players in bold. Most titles per tournament underlined.

Trivia

• Monica Seles holds the record for the most consecutive wins at a Tier One event. From 1995 to 1999, she reached the finals of the Canadian Open, winning on the first four occasions.
• Conchita Martinez won the Italian Open four straight times, from 1993 to 1996, and reached the final in 1997.
• Martina Hingis of Switzerland has won all the different Tier I tournaments except for the San Diego event, which became a Tier I event in 2004, during her three-year withdrawal from the sport which ended in late 2005.