| Singles | |
|---|---|
| 2004 SEAT Open | |
| Champion |  Alicia Molik |
| Runner-up |  Dinara Safina |
| Final score | 6–3, 6–4 |
| Seeds | 8 |
Kim Clijsters was the defending champion, but did not compete this year due to an injury on her left wrist. [1]
Second-seeded Alicia Molik won the title by defeating Dinara Safina 6–3, 6–4 in the final.
The top two seeds received a bye into the second round.
Paola Suárez (second round) Alicia Molik (champion)
Silvia Farina Elia (semifinals)
Magdalena Maleeva (first round)
Mary Pierce (second round) Tatiana Golovin (quarterfinals)
Eleni Daniilidou (second round)
Shinobu Asagoe (second round)| Semifinals | Final | ||||||||||||
 Anabel Medina Garrigues | 6 | 1 | 2 | ||||||||||
| Dinara Safina | 4 | 6 | 6 | ||||||||||
| Dinara Safina | 3 | 4 | |||||||||||
| 2 | Alicia Molik | 6 | 6 | ||||||||||
| 3 | Silvia Farina Elia | 2 | 2 | ||||||||||
| 2 | Alicia Molik | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | P Suárez | 6 | 3 | 4 | |||||||||||||||||||||||
| T Garbin | 2 | 4 | A Medina Garrigues | 3 | 6 | 6 | |||||||||||||||||||||
| A Medina Garrigues | 6 | 6 | A Medina Garrigues | 3 | 6 | 6 | |||||||||||||||||||||
| WC |  A Kremer | 3 | 1 |  A Ivanovic | 6 | 4 | 1 | ||||||||||||||||||||
| A Ivanovic | 6 | 6 | A Ivanovic | 4 | 6 | 6 | |||||||||||||||||||||
| Q |  M Krajicek | 0 | 77 | 1 | 8 | S Asagoe | 6 | 4 | 1 | ||||||||||||||||||
| 8 | S Asagoe | 6 | 61 | 6 | A Medina Garrigues | 6 | 1 | 2 | |||||||||||||||||||
| 4 | M Maleeva | 7 | 4 | 3 | D Safina | 4 | 6 | 6 | |||||||||||||||||||
| Q |  E Laine | 5 | 6 | 6 | Q | E Laine | 2 | 1 | |||||||||||||||||||
| D Safina | 6 | 6 | D Safina | 6 | 6 | ||||||||||||||||||||||
| Q | An Serra Zanetti | 4 | 0 | D Safina | 6 | 6 | |||||||||||||||||||||
 D Randriantefy | 6 | 6 | D Randriantefy | 1 | 4 | ||||||||||||||||||||||
 M Washington | 4 | 2 | D Randriantefy | 6 | 3 | 6 | |||||||||||||||||||||
| WC | C Gullickson | 0 | 5 | 5 | M Pierce | 4 | 6 | 3 | |||||||||||||||||||
| 5 | M Pierce | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | E Daniilidou | 7 | 6 | ||||||||||||||||||||||||
| J Craybas | 5 | 1 | 7 | E Daniilidou | 3 | 4 | |||||||||||||||||||||
| Q/PR |  K Peschke | 68 | 6 | 6 | Q/PR | K Peschke | 6 | 6 | |||||||||||||||||||
| C Schaul | 710 | 2 | 0 | Q/PR | K Peschke | 6 | 2 | 1 | |||||||||||||||||||
 T Pisnik | 6 | 6 | 3 | S Farina Elia | 3 | 6 | 6 | ||||||||||||||||||||
| V Razzano | 1 | 1 | T Pisnik | 4 | 0 | ||||||||||||||||||||||
| S Foretz | 3 | 2 | 3 | S Farina Elia | 6 | 6 | |||||||||||||||||||||
| 3 | S Farina Elia | 6 | 6 | 3 | S Farina Elia | 2 | 2 | ||||||||||||||||||||
| 6 | T Golovin | 6 | 6 | 2 | A Molik | 6 | 6 | ||||||||||||||||||||
 AL Grönefeld | 2 | 3 | 6 | T Golovin | 6 | 6 | |||||||||||||||||||||
| A Barna | 5 | 7 | 4 | M Weingärtner | 3 | 4 | |||||||||||||||||||||
| M Weingärtner | 7 | 5 | 6 | 6 | T Golovin | 6 | 4 | 4 | |||||||||||||||||||
| M Sánchez Lorenzo | 6 | 6 | 2 | A Molik | 3 | 6 | 6 | ||||||||||||||||||||
| V Ruano Pascual | 4 | 3 | M Sánchez Lorenzo | 63 | 62 | ||||||||||||||||||||||
| 2 | A Molik | 77 | 77 | ||||||||||||||||||||||||
Antonella Serra Zanetti (qualified)
Tzipora Obziler (second round) Maria Kirilenko (qualifying competition)
Catalina Castaño (second round)
Els Callens (first round) 
Alona Bondarenko (second round) Meilen Tu (first round) Lioudmila Skavronskaia (first round)| First round | Second round | Qualifying competition | ||||||||||||||||||
| 1 | Antonella Serra Zanetti | 6 | 6 | |||||||||||||||||
| Ekaterina Bychkova | 4 | 4 | 1 | Antonella Serra Zanetti | 6 | 6 | ||||||||||||||
 Tatiana Poutchek | 7 | 0 | 2 |  Maret Ani | 3 | 3 | ||||||||||||||
| Maret Ani | 5 | 6 | 6 | 1 | Antonella Serra Zanetti | 6 | 6 | |||||||||||||
 Amanda Janes | 2 | 4 | Eva Hrdinová | 4 | 2 | |||||||||||||||
| Eva Hrdinová | 6 | 6 | Eva Hrdinová | 6 | 6 | |||||||||||||||
| Angelika Bachmann | 6 | 1 | 3 | 7 | Alona Bondarenko | 3 | 4 | |||||||||||||
| 7 | Alona Bondarenko | 4 | 6 | 6 | ||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 2 | Tzipora Obziler | 6 | 6 | |||||||||||||||||
| Youlia Fedossova | 2 | 1 | 2 | Tzipora Obziler | 64 | 2 | ||||||||||||||
 Ivana Abramović | 3 | 4 | WC | Michaëlla Krajicek | 77 | 6 | ||||||||||||||
| WC | Michaëlla Krajicek | 6 | 6 | WC | Michaëlla Krajicek | 2 | 6 | 710 | ||||||||||||
| Martina Müller | 5 | 0r | WC | Mandy Minella | 6 | 3 | 68 | |||||||||||||
| WC | Mandy Minella | 7 | 3 | WC | Mandy Minella | 6 | 65 | 6 | ||||||||||||
| Vanessa Henke | 6 | 65 | 6 | Vanessa Henke | 3 | 77 | 3 | |||||||||||||
| 9 | Lioudmila Skavronskaia | 2 | 77 | 2 | ||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 3 | Maria Kirilenko | 7 | 6 | |||||||||||||||||
| Elena Baltacha | 5 | 1 | 3 | Maria Kirilenko | 6 | 6 | ||||||||||||||
| Sabrina Jolk | 66 | 1 | Anastasia Rodionova | 4 | 2 | |||||||||||||||
| Anastasia Rodionova | 78 | 6 | 3 | Maria Kirilenko | 4 | 6 | 0 | |||||||||||||
| Debbrich Feys | 77 | 2 | 4 | PR | Květa Peschke | 6 | 1 | 6 | ||||||||||||
| Libuše Průšová | 62 | 6 | 6 | Libuše Průšová | 2 | 1 | ||||||||||||||
| PR | Květa Peschke | 6 | 6 | PR | Květa Peschke | 6 | 6 | |||||||||||||
| 8 | Meilen Tu | 1 | 2 | |||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 4 | Catalina Castaño | 7 | 6 | |||||||||||||||||
| WC | Martine Poos | 5 | 1 | 4 | Catalina Castaño | 65 | 6 | 63 | ||||||||||||
| WC | Lynn Philippe | 3 | 2 | Emma Laine | 77 | 4 | 77 | |||||||||||||
| Emma Laine | 6 | 6 | Emma Laine | 6 | 4 | 6 | ||||||||||||||
| Yuliya Beygelzimer | 6 | 78 | Sandra Klösel | 1 | 6 | 3 | ||||||||||||||
| Adriana Serra Zanetti | 4 | 66 | Yuliya Beygelzimer | 61 | 6 | 1 | ||||||||||||||
| Sandra Klösel | 1 | 6 | 7 | Sandra Klösel | 77 | 2 | 6 | |||||||||||||
| 5 | Els Callens | 6 | 3 | 5 | ||||||||||||||||
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