Virginia Ruano Pascual and Paola Suárez were the defending champions, but Suárez did not participate due to injury. Ruano Pascual partnered Conchita Martínez, but lost in the first round to Jennifer Hopkins and Mashona Washington.
Virginia Ruano Pascual and Paola Suárez were defending champions, and won in the final 6–4, 7–5, against Svetlana Kuznetsova and Elena Likhovtseva.
Kim Clijsters and Ai Sugiyama were the defending champions, but Clijsters chose not to participate. Sugiyama played alongside Liezel Huber, but they lost in the first round to Shinobu Asagoe and Rika Fujiwara.
Virginia Ruano Pascual and Paola Suárez were the two-time defending champions, but were defeated in the final by Kim Clijsters and Ai Sugiyama 7–6(7–5), 2–6, 7–9.
Kim Clijsters defeated Maria Sharapova in the final, 6–3, 7–5 to win the women's singles title at the 2005 Miami Open. She did not lose a set during the tournament, and became the second woman to achieve the Sunshine Double. Clijsters became the lowest-ranked player to win the title, doing so as the world No. 38.
Martina Hingis was the defending champion but lost in the semifinals to Venus Williams.
Serena Williams and Venus Williams defeated Virginia Ruano Pascual and Paola Suárez in the final, 4–6, 6–4, 6–3 to win the women's doubles tennis title at the 2003 Australian Open.
Serena Williams and Venus Williams were the defending champions, but Serena withdrew from the tournament and Venus didn't want to participate with another player.
The 1999 Lipton Championships women's singles was the women's singles 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. Venus Williams was the defending champion, and she successfully defending her title by defeating her sister Serena in the final 6–1, 4–6, 6–4.
Martina Suchá was the defending champion but lost to Alicia Molik in the first round.
The 2003 Moorilla Hobart International was a women's tennis tournament played on outdoor hard courts. It was the 10th edition of the event and part of the Tier V category of the 2003 WTA Tour. It took place at the Hobart International Tennis Centre in Hobart, Australia from 6 through 12 January 2003. Alicia Molik won the singles title.
Serena and Venus Williams were the defending champions but withdrew in the third round.
Martina Hingis and Mary Pierce were the defending champions, but neither participated in this tournament.
Eleni Daniilidou and Nicole Pratt were the defending champions, but Pratt did not compete this year. Daniilidou teamed up with Jennifer Russell and reached the quarterfinals, before being eliminated by Květa Peschke and Francesca Schiavone.
Cara Black and Elena Likhovtseva were the defending champions, but lost in semifinals to Conchita Martínez and Patricia Tarabini.
Barbara Rittner and María Vento-Kabchi were the defending champions, but Rittner did not compete this year. Vento-Kabchi teamed up with Angelique Widjaja and lost in semifinals to tournament winners Svetlana Kuznetsova and Martina Navratilova.
Cara Black and Elena Likhovtseva were the defending champions, but lost in semifinals to Martina Hingis and Barbara Schett.
Silvia Farina Elia and Barbara Schett were the defending champions, but none competed this year. Schett represented Austria at the Hopman Cup in Perth, which was held at the same week.
Cara Black and Liezel Huber were the defending champions, but Huber did not compete this year. Black teamed up with Elena Likhovtseva and lost in semifinals to tournament winners Svetlana Kuznetsova and Arantxa Sánchez Vicario.
Janette Husárová and Elena Likhovtseva were the defending champions, but Husárová did not participate. Likhovtseva participated with Vera Zvonareva, but the pair lost in the semifinals to Conchita Martínez and Virginia Ruano Pascual.
Cara Black 
Elena Likhovtseva 
Barbara Schett 
