Serena and Venus Williams defeated Julie Halard-Decugis and Ai Sugiyama in the final, 6-3, 6-2 to win the ladies' doubles tennis title at the 2000 Wimbledon Championships. They became the first pair of sisters to win the title. It was their third major title in doubles, and the third component in an eventual career Golden Slam in doubles. The Williams sisters had only played three events thus far into the season, and only entered the draw via a wildcard.
Lindsay Davenport and Jana Novotná were the defending champions but they competed with different partners that year, Davenport with Natasha Zvereva and Novotná with Chanda Rubin.
Martina Hingis and Arantxa Sánchez Vicario were the defending champions but did not compete that year.
Two-time defending champion Lindsay Davenport and her partner Natasha Zvereva defeated Alexandra Fusai and Nathalie Tauziat in the final, 6–7(6–8), 7–5, 6–3 to win the doubles tennis title at the 1998 WTA Tour Championships.
The 1999 Evert Cup doubles was the doubles event of the eleventh edition of the tennis tournament played at Indian Wells, California, United States. It was the second WTA Tier I tournament of the year, and part of the US Spring tennis season. Lindsay Davenport and Natasha Zvereva were the defending champions but lost in the quarterfinals to Serena Williams and Venus Williams.
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.
Martina Hingis defeated Lindsay Davenport in the final, 6–3, 6–2 to win the women's singles tennis title at the 2000 Miami Open. She did not lose a set, and lost only 21 games, en route to the title.
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.
Serena and Venus Williams defeated Chanda Rubin and Sandrine Testud in the final, 4–6, 6–1, 6–4 to win the women's doubles tennis title at the 1999 US Open. It was the second doubles major title for the Williams sisters, and their second step towards completing the career Golden Slam in doubles.
Martina Hingis and Anna Kournikova defeated Larisa Neiland and Arantxa Sánchez Vicario in the final, 6–4, 6–4 to win the doubles tennis title at the 1999 WTA Tour Championships.
The 1999 WTA German Open singles was the singles event of the fifty-fifth edition of the tennis tournament played at Berlin, Germany, the most prestigious tennis tournament in Latin Europe. It was the sixth WTA Tier I tournament of the year, and part of the European claycourt season. Lindsay Davenport and Natasha Zvereva were the defending champions, but only Zvereva participated this year with Mary Pierce. They were eliminated in the first round by Brie Rippner and Tara Snyder.
Venus Williams defeated Martina Hingis in the final, 6–3, 6–4 to win the singles tennis title at the 1999 European Indoor Championships.
There was no defending champion, due to the cancellation of the semifinals in 1998 due to rain.
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. They did not drop a single set en route to the title. 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 Bank of the West Classic doubles was the doubles event of the twenty-eighth edition of the first tournament in the US Open Series.
The 1999 TIG Classic singles was the singles event of the twentieth edition of the second tournament in the US Open Series.
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.
The 1999 Advanta Championships of Philadelphia doubles was the tennis doubles event of the seventeenth edition of the Advanta Championships of Philadelphia; a WTA Tier II tournament held in Philadelphia, Pennsylvania. Elena Likhovtseva and Ai Sugiyama were the defending champions, but Sugiyama did not compete this year. Likhovtseva competed with Amanda Coetzer, but were defeated in the quarterfinals by Lisa Raymond and Rennae Stubbs.
Serena Williams and Venus Williams were the defending champions, but did not compete this year.
Alexandra Fusai and Nathalie Tauziat were the defending champions, but lost in quarterfinals to Nicole Arendt and Manon Bollegraf.
Lindsay Davenport 
