Lindsay Davenport was the defending champion but lost in the final 6–3, 6–4 against Martina Hingis.
Lindsay Davenport and Natasha Zvereva were the defending champions and won in the final 6–4, 2–6, 6–4 against Alexandra Fusai and Nathalie Tauziat.
Martina Hingis and Arantxa Sánchez-Vicario were the defending champions but only Sánchez-Vicario competed that year with Anna Kournikova.
The 1999 Toray Pan Pacific Open singles was the singles event of the twenty-fourth edition of the Toray Pan Pacific Open Tennis Tournament, the first WTA Tier I tournament of the year. Lindsay Davenport was the defending champion but lost in the quarterfinals to Amanda Coetzer.
The 1999 Toray Pan Pacific Open doubles was the doubles event of the twenty-fourth edition of the Toray Pan Pacific Open Tennis Tournament, the first WTA Tier I tournament of the year. Martina Hingis and Mirjana Lučić were the defending champions but only Hingis competed that year with Jana Novotná.
Serena Williams defeated Steffi Graf in the final, 6–3, 3–6, 7–5 to win the women's singles tennis title at the 1999 Indian Wells Open. It was the second and last time that the two would contest a professional match.
The 1999 Lipton Championships women's doubles was the women's doubles event of the fifteenth edition of the tennis tournament played at Miami, United States. It is the third WTA Tier I tournament of the year, and part of the US Spring tennis season. Martina Hingis and Jana Novotná were the defending champions and won in the final 0–6, 6–4, 7–6(7–1) against Mary Joe Fernández and Monica Seles.
Martina Hingis and Anna Kournikova were the defending champions but Hingis did not compete this year. Kournikova partnered Natasha Zvereva and reached the quarterfinals where they were beaten by Els Callens and Dominique Van Roost.
The 1999 Direct Line International Championships doubles was the doubles event of the twenty-fifth edition of the Eastbourne International, a WTA Tier II tennis tournament held in Eastbourne, England and part of the European grass court season. Mariaan de Swardt and Jana Novotná were the defending doubles champions but each competed with different partners in 1999. De Swardt partnered Elena Tatarkova and reached the semifinals where they lost to Martina Hingis and Anna Kournikova. Novotná teamed with Natasha Zvereva and they retired in the final to Hingis and Kournikova after losing the first set 4–6.
Lindsay Davenport and Corina Morariu defeated Mariaan de Swardt and Elena Tatarkova in the final, 6–4, 6–4 to win the ladies' doubles tennis title at the 1999 Wimbledon Championships.
The 1999 Australian Open women's doubles was the women's doubles event of the eighty-seventh edition of the Australian Open, the first Grand Slam of the year and the most prestigious tournament in the Asia-Pacific and the Southern Hemisphere. Martina Hingis and Mirjana Lučić were the defending champions, but Hingis competed with Russian Anna Kournikova, and Lučić competed with Frenchwoman Mary Pierce. Lučić and Pierce were defeated in the first round by Christina Singer and Helena Vildová.
Hingis and Kournikova, however, ended up winning the title, defeating first seeds Lindsay Davenport and Natasha Zvereva, 7–5, 6–3. With this win, Hingis won her fifth consecutive Grand Slam title in doubles, and became the only woman to have won three consecutive Australian Open titles in singles and doubles simultaneously. Hingis and her partners defeated Davenport/Zvereva for all five consecutive women's doubles titles starting with the 1998 Australian and ending with the 1999 Australian Open.
Serena and Venus Williams defeated Martina Hingis and Anna Kournikova in the final, 6–3, 6–7(2–7), 8–6 to win the women's doubles tennis title at the 1999 French Open. It was the first major title for the Williams sisters, and would be their first step towards completing the career Golden Slam in doubles.
Defending champion Jana Novotná and her partner Martina Hingis defeated the other defending champion Lindsay Davenport and her partner Natasha Zvereva in the final, 6–3, 6–3 to win the women's doubles tennis title at the 1998 US Open. With the win, Hingis became the third woman in the Open Era to complete a Grand Slam in doubles, after Martina Navratilova and Pam Shriver. Additionally, Hingis and her partners defeated Davenport/Zvereva in all four major finals in 1998.
The 1999 Porsche Tennis Grand Prix doubles was the tennis doubles event at the 1999 Porsche Tennis Grand Prix, the twenty-second edition of the most prestigious tournament in Baden-Württemberg. Lindsay Davenport and Natasha Zvereva were the defending champions, but they did not compete this year. Davenport competed with Martina Hingis as the first seed, while Zvereva competed with Elena Tatarkova. Davenport and Hingis withdrew in the quarterfinals due to Davenport having a wrist injury, whilst Tatarkova and Zvereva were knocked out in the first round.
The women's doubles Tournament at the 2000 Indian Wells Masters took place between March 10 and March 19 on the outdoor hard courts of the Indian Wells Tennis Garden in Indian Wells, California, United States. Lindsay Davenport and Corina Morariu won the title, defeating Anna Kournikova and Natasha Zvereva in the final.
Defending champion Martina Hingis and her partner Mirjana Lučić defeated the other defending champion Natasha Zvereva and her partner Lindsay Davenport in the final, 6–4, 2–6, 6–3 to win the women's doubles tennis title at the 1998 Australian Open. It was the first step in an eventual Grand Slam for Hingis.
Martina Hingis and Jana Novotná defeated the defending champion Natasha Zvereva and her partner Lindsay Davenport in the final, 6–1, 7–6(7–4) to win the women's doubles tennis title at the 1998 French Open. It was the second step in an eventual Grand Slam for Hingis.
Lindsay Davenport and Mary Joe Fernández were the defending champions, but played this year with different partners. Davenport teamed up with Jana Novotná and lost in third round to Conchita Martínez and Patricia Tarabini, while Fernández teamed up with Lisa Raymond, losing in the final.
Lindsay Davenport and Jana Novotná defeated the defending champions Gigi Fernández and Natasha Zvereva in the final, 6–3, 6–4 to win the women's doubles tennis title at the 1997 US Open. It was the 17th doubles title and second major title for Davenport, and the 67th title and ninth major title for Novotná.
Lindsay Davenport and Natasha Zvereva were the defending champions, but Davenport did not compete this year. Zvereva teamed up with Katarina Srebotnik and lost in quarterfinals to Lisa Raymond and Rennae Stubbs.
Martina Hingis 
Anna Kournikova 
Mary Joe Fernández 
Jana Novotná 
