Lisa Raymond and Samantha Stosur defeated Elena Dementieva and Flavia Pennetta in the final, 6–2, 5–7, 6–3 to win the women's doubles tennis title at the 2005 US Open.
Květa Peschke and Francesca Schiavone were the defending champions. They were both present but did not compete together.
Peschke partnered with Janette Husárová, but lost in the quarterfinals to Daniela Hantuchová and Ai Sugiyama.
Schiavone partnered with Katarina Srebotnik, but lost in the semifinals to Svetlana Kuznetsova and Alicia Molik.
Lisa Raymond and Samantha Stosur were the defending champions, but Stosur chose not to participate, and only Raymond competed that year.
Raymond partnered with Maria Kirilenko, but lost in the first round to Daniela Hantuchová and Ai Sugiyama.
Shinobu Asagoe and Ai Sugiyama were the defending champions. They were both present but did not compete together.
Asagoe partnered with Tathiana Garbin, but lost in the semifinals to Conchita Martínez and Virginia Ruano Pascual.
Sugiyama partnered with Daniela Hantuchová, but lost in the semifinals to Anna-Lena Grönefeld and Martina Navratilova.
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.
Lisa Raymond and Rennae Stubbs were the defending champions but they competed with different partners that year, Raymond with Lindsay Davenport and Stubbs with Elena Bovina.
Maria Kirilenko and Nadia Petrova were the defending champions. Both were present that year, but chose to compete with different players.
Kirilenko partnered with Elena Vesnina, but lost in the second round to Nuria Llagostera Vives and María José Martínez Sánchez.
Petrova partnered with Bethanie Mattek-Sands, but lost in the quarterfinals to Cara Black and Liezel Huber.
Cara Black and Liezel Huber won in the final 6–3, 0–6, 10–2 against Nuria Llagostera Vives and María José Martínez Sánchez.
Serena and Venus Williams defeated the defending champions Cara Black and Liezel Huber in the final, 6–2, 6–2 to win the women's doubles tennis title at the 2009 US Open. It was their second US Open title together and tenth major title together overall. It was the second component in an eventual non-calendar-year Grand Slam for the sisters.
Serena 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. It was their second Australian Open title together and sixth major title together overall.
Daniela Hantuchová and Ai Sugiyama were the defending champions but decided not to defend the title together. Hantuchová chose to play with Nadia Petrova while Sugiyama played with Katarina Srebotnik. Both lost in the second round. Nathalie Dechy and Mara Santangelo won the title by defeating Tathiana Garbin and Roberta Vinci 6–4, 6–1 in the final.
Justine Henin-Hardenne defeated Nadia Petrova in the final, 6–3, 4–6, 6–3 to win the singles tennis title at the 2005 WTA German Open.
The doubles Tournament at the 2005 Qatar Total German Open took place between May 2 and May 8 on the outdoor clay courts of the Rot-Weiss Tennis Club in Berlin, Germany. Elena Likhovtseva and Vera Zvonareva won the title, defeating Cara Black and Liezel Huber in the final.
Cara Black and Rennae Stubbs were the defending champions, but lost in the semifinals to Daniela Hantuchová and Ai Sugiyama.
Defending champion Lindsay Davenport defeated Magdalena Maleeva in the final, 6–4, 6–1 to win the singles tennis title at the 2004 Pan Pacific Open. It was her first title of the season, and the 39th of her career.
Nadia Petrova and Meghann Shaughnessy were the defending champions, but had different outcomes. While Petrova decided to focus only on the singles tournament, Shaughnessy partnered with Anna-Lena Grönefeld and lost in semifinals to Maria Kirilenko and Anabel Medina Garrigues.
Defending champion Amélie Mauresmo defeated Patty Schnyder in the final, 2–6, 6–3, 6–4 to win the women's singles tennis title at the 2005 Italian Open.
Elena Dementieva and Janette Husárová were the defending champions, but had different outcomes. Dementieva had to withdraw due to a left foot strain, while Husárová teamed up with Elena Likhovtseva and reached the semifinals.
Virginia Ruano Pascual and Paola Suárez were the defending champions, but neither of them competed this year.
Justine Henin-Hardenne was the defending champion, but withdrew from the tournament due to injury.
Jelena Dokic and Nadia Petrova were the two-time defending champions, but Dokic did not participate in the doubles event at this tournament. Petrova partnered Elena Likhovtseva, but the pair withdrew before their semifinal match against Marion Bartoli and Silvia Farina Elia.
Alisa Kleybanova 
Francesca Schiavone 
Daniela Hantuchová 
Ai Sugiyama 
