# 2003 SEAT Open – Singles

Kim Clijsters was the defending champion and successfully defended her title, by defeating Chanda Rubin 6–2, 7–5 in the final.

## Seeds

The first two seeds received a bye into the second round.
* Kim Clijsters (champion)
* Chanda Rubin (final)
* Eleni Daniilidou (quarterfinals)
* Tamarine Tanasugarn (second round)
* Maria Sharapova (semifinals)
* Katarina Srebotnik (first round)
* Alicia Molik (quarterfinals, retired)
* María Sánchez Lorenzo (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Kim Clijsters | 6 | 6 | | | | |
| 5 | Maria Sharapova | 0 | 3 | | | | |
| 5 | Maria Sharapova | 0 | 3 | 1 | Kim Clijsters | 6 | 7 |
| | | | | 2 | Chanda Rubin | 2 | 5 |
| | Marlene Weingärtner | 2 | 5 | 2 | Chanda Rubin | 2 | 5 |
| 2 | Chanda Rubin | 6 | 7 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | K Clijsters | 6 | 6 | | | | | | | | | |
| | V Ruano Pascual | 6$^6$ | 4 | | | C Schaul | 3 | 1 | | | | | | | | | |
| | C Schaul | 7$^8$ | 6 | | | | | | 1 | K Clijsters | 6 | 7 | | | | | |
| | F Pennetta | 7 | 5 | 3 | | | | | | É Loit | 4 | 5 | | | | | |
| | L Granville | 5 | 7 | 6 | | L Granville | 3 | 3 | | | | | | | | | |
| | É Loit | 6 | 6 | | | É Loit | 6 | 6 | | | | | | | | | |
| 8 | M Sánchez Lorenzo | 3 | 2 | | | | | | | | | | | 1 | K Clijsters | 6 | 6 |
| 4 | T Tanasugarn | 6 | 6 | | | | | | | | | | | 5 | M Sharapova | 0 | 3 |
| WC | E Clijsters | 2 | 3 | | 4 | T Tanasugarn | 3 | 4 | | | | | | | | | |
| | N Pratt | 3 | 4 | | | A Barna | 6 | 6 | | | | | | | | | |
| | A Barna | 6 | 6 | | | | | | | A Barna | 6 | 3 | 2 | | | | |
| | T Ashley | 3 | 0 | | | | | | 5 | M Sharapova | 4 | 6 | 6 | | | | |
| Q | S Arvidsson | 6 | 6 | | Q | S Arvidsson | 1 | 6$^4$ | | | | | | | | | |
| WC | K Flipkens | 2 | 6$^7$ | | 5 | M Sharapova | 6 | 7$^7$ | | | | | | | | | |
| 5 | M Sharapova | 6 | 7$^9$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | K Srebotnik | 5 | 3 | | | | | | | | | | | | | | |
| | M Sequera | 7 | 6 | | | M Sequera | 1 | 4 | | | | | | | | | |
| | E Gagliardi | 3 | 3 | | | M Weingärtner | 6 | 6 | | | | | | | | | |
| | M Weingärtner | 6 | 6 | | | | | | | | M Weingärtner | 6 | 6 | | | | |
| | C Black | 6 | 6 | | | | | | | 3 | E Daniilidou | 2 | 1 | | | | |
| Q | J Vakulenko | 1 | 4 | | | C Black | 4 | 1 | | | | | | | | | |
| | S Cohen-Aloro | 6$^5$ | 2 | | 3 | E Daniilidou | 6 | 6 | | | | | | | | | |
| 3 | E Daniilidou | 7$^7$ | 6 | | | | | | | | | | | | M Weingärtner | 2 | 5 |
| 7 | A Molik | 6 | 6 | | | | | | | | | | | 2 | C Rubin | 6 | 7 |
| | R Grande | 3 | 3 | | 7 | A Molik | 6 | 6 | | | | | | | | | |
| | E Tatarkova | 6 | 0 | 1 | | A Medina Garrigues | 4 | 1 | | | | | | | | | |
| | A Medina Garrigues | 2 | 6 | 6 | | | | | | 7 | A Molik | 7 | 4$^r$ | | | | |
| Q | S Foretz | 6 | 6 | | | | | | | 2 | C Rubin | 5 | 5 | | | | |
| Q | B Rittner | 1 | 2 | | Q | S Foretz | 6 | 4 | 3 | | | | | | | | |
| | | | | | 2 | C Rubin | 3 | 6 | 6 | | | | | | | | |