| Doubles | |
|---|---|
| 2004 SEAT Open | |
| Champions |  Virginia Ruano Pascual  Paola Suárez |
| Runners-up |  Jill Craybas  Marlene Weingärtner |
| Final score | 6–1, 6–7(1–7), 6–3 |
Maria Sharapova and Tamarine Tanasugarn were the defending champions, but none competed this year.
Virginia Ruano Pascual and Paola Suárez won the title by defeating Jill Craybas and Marlene Weingärtner 6–1, 6–7(1–7), 6–3 in the final.
Virginia Ruano Pascual / Paola Suárez (champions)
Maret Ani / Meilen Tu (quarterfinals, withdrew due to a left quadriceps strain on Ani)
Shinobu Asagoe / 
Claudine Schaul (quarterfinals) Jill Craybas / Marlene Weingärtner (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | V Ruano Pascual P Suárez | 3 | 6 | 7 | |||||||||||||||||||||||
| WC |  M Krajicek A Kremer | 6 | 3 | 5 | 1 | V Ruano Pascual P Suárez | 78 | 6 | |||||||||||||||||||
V Henke  K Peschke | 6 | 6 | V Henke K Peschke | 66 | 3 | ||||||||||||||||||||||
 A Bondarenko  A Rodionova | 2 | 3 | 1 | V Ruano Pascual P Suárez | 77 | 6 | |||||||||||||||||||||
| 3 | S Asagoe C Schaul | 6 | 77 | AL Grönefeld A Medina Garrigues | 65 | 4 | |||||||||||||||||||||
| M Kirilenko D Safina | 1 | 64 | 3 | S Asagoe C Schaul | 2 | 3 | |||||||||||||||||||||
 E Daniilidou  T Garbin | 63 | 3 | AL Grönefeld A Medina Garrigues | 6 | 6 | ||||||||||||||||||||||
| AL Grönefeld A Medina Garrigues | 77 | 6 | 1 | V Ruano Pascual P Suárez | 6 | 61 | 6 | ||||||||||||||||||||
 S Foretz An Serra Zanetti | 6 | 3 | 6 | 4 | J Craybas M Weingärtner | 1 | 77 | 3 | |||||||||||||||||||
 T Poutchek M Washington | 2 | 6 | 3 | S Foretz An Serra Zanetti | |||||||||||||||||||||||
| Y Beygelzimer L Průšová | 3 | 2 | 4 | J Craybas M Weingärtner | w/o | ||||||||||||||||||||||
| 4 | J Craybas M Weingärtner | 6 | 6 | 4 | J Craybas M Weingärtner | 6 | 6 | ||||||||||||||||||||
 L Baker K Kilsdonk | 6 | 6 | L Baker K Kilsdonk | 3 | 3 | ||||||||||||||||||||||
| Q | E Bychkova  E Laine | 4 | 3 | L Baker K Kilsdonk | w/o | ||||||||||||||||||||||
 K Jans A Rosolska | 2 | 6 | 2 | 2 | M Ani M Tu | ||||||||||||||||||||||
| 2 | M Ani M Tu | 6 | 3 | 6 | |||||||||||||||||||||||
Anca Barna / Carly Gullickson (first round) Ekaterina Bychkova / Emma Laine (qualified)| First round | Qualifying competition | ||||||||||
| 1 | Anca Barna Carly Gullickson | 3 | |||||||||
| Angelika Bachmann Eva Hrdinová | 8 | ||||||||||
| Angelika Bachmann Eva Hrdinová | 4 | 6 | 5 | ||||||||
| 2 | Ekaterina Bychkova Emma Laine | 6 | 2 | 7 | |||||||
 Catalina Castaño  Tzipora Obziler | 84 | ||||||||||
| 2 | Ekaterina Bychkova Emma Laine | 97 | |||||||||
Jelena Janković successfully defended her title, beating qualifier Alizé Cornet in the final, 6–2, 6–2.
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.
Nicole Arendt and Ai Sugiyama were the defending champions but they competed with different partners that year, Arendt with Liezel Huber and Sugiyama with Elena Tatarkova.
Anne Kremer was the defending champion but lost in the quarterfinals to Marlene Weingärtner.
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Conchita Martínez and Virginia Ruano Pascual were the defending champions, but Martínez chose not to participate that year.
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Lindsay Davenport and Lisa Raymond were the defending champions but they competed with different partners in 2004, Davenport with Corina Morariu and Raymond with Martina Navratilova.
Lisa Raymond and Rennae Stubbs were the defending champions, but Raymond did not compete in this edition. Stubbs teamed up with Elena Bovina and lost in quarterfinals to Virginia Ruano Pascual and Paola Suárez.
Elena Likhovtseva and Jana Novotná were the defending champions, but none of them competed this year. Novotná also retired from professional tennis at the end of the 1999 season.
Cara Black and Elena Likhovtseva were the defending champions, but lost in semifinals to Conchita Martínez and Patricia Tarabini.
Chan Yung-jan and Chuang Chia-jung were the defending champions, but Chan did not compete this year. Chuang teamed up with Mariana Díaz Oliva and lost in the final to Virginia Ruano Pascual and Paola Suárez, 6–2, 6–3.
Lisa Raymond and Rennae Stubbs were the defending champions, but lost in semifinals to Virginia Ruano Pascual and Paola Suárez.
Elena Bovina and Justine Henin-Hardenne were the defending champions but none competed this year, as both players decided to priorize the singles competition.
Eleni Daniilidou was the defending champion and successfully defended her title, by defeating Ashley Harkleroad 6–3, 6–2 in the final.
Teryn Ashley and Abigail Spears were the defending champions, but Spears decided to compete in Gold Coast at the same week. Ashley teamed up with Shenay Perry and lost in first round to Iveta Benešová and Renata Voráčová.
Kim Clijsters and Ai Sugiyama were the defending champions, but none competed this year. Clijsters was injured on her left wrist, while Sugiyama decided to focus on the singles tournament.
In the doubles matches of the 2000 Idea Prokom Open, Laura Montalvo and Paola Suárez were the defending champions, but competed this year with different partners. Montalvo teamed up with Gala León García and were eliminated in quarterfinals. Suárez teamed up with Virginia Ruano Pascual and successfully defended her title, by defeating Åsa Carlsson and Rita Grande 7–5, 6–1 in the final.
Elena Dementieva and Janette Husárová were the defending champions, but both players competed in this edition with different partners. Dementieva teamed up with Lina Krasnoroutskaya, while Husárová teamed up with Conchita Martínez. Both teams were eliminated by Virginia Ruano Pascual and Paola Suárez in the first round and quarterfinals, respectively.
Jelena Dokic and Nadia Petrova were the defending champions, and successfully defended their title, defeating Rika Fujiwara and Ai Sugiyama in the final, 6–3, 6–2.