# 2004 Proximus Diamond Games – Singles

Venus Williams was the defending champion, but did not compete this year.
Kim Clijsters won the title by defeating Silvia Farina Elia 6–3, 6–0 in the final.

## Seeds

Two out of the first five seeds (plus two lucky losers) received a bye into the second round.
* Justine Henin-Hardenne (withdrew)
* Kim Clijsters (champion)
* Venus Williams (withdrew)
* Elena Dementieva (withdrew)
* Patty Schnyder (quarterfinals)
* Francesca Schiavone (withdrew)
* Anna Smashnova-Pistolesi (first round)
* Silvia Farina Elia (final)
* Magdalena Maleeva (quarterfinals)
* Magüi Serna (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 |
| | Karolina Šprem | 4 | 5 | | | | |
| 8 | Silvia Farina Elia | 6 | 7 | | | | |
| 8 | Silvia Farina Elia | 6 | 7 | 8 | Silvia Farina Elia | 3 | 0 |
| | | | | 2 | Kim Clijsters | 6 | 6 |
| LL | Myriam Casanova | 1 | 2 | 2 | Kim Clijsters | 6 | 6 |
| 2 | Kim Clijsters | 6 | 6 | | | | |

### Top 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 |
| | | | | | LL | S Foretz | 7$^7$ | 4 | 4 | | | | | | | | |
| | D Chládková | 6 | 6 | | | D Chládková | 6$^2$ | 6 | 6 | | | | | | | | |
| | E Gagliardi | 0 | 0 | | | | | | | | D Chládková | 4 | 3 | | | | |
| | C Black | 6 | 4 | 6 | | | | | | | K Šprem | 6 | 6 | | | | |
| Q | Z Ondrášková | 4 | 6 | 3 | | C Black | 4 | 3 | | | | | | | | | |
| | K Šprem | 6 | 7 | | | K Šprem | 6 | 6 | | | | | | | | | |
| 7 | A Smashnova-Pistolesi | 1 | 5 | | | | | | | | | | | | K Šprem | 4 | 5 |
| | | | | | | | | | | | | | | 8 | S Farina Elia | 6 | 7 |
| | | | | | 5 | P Schnyder | 6$^5$ | 6 | 7 | | | | | | | | |
| Q | A Stevenson | 3 | 1 | | LL | J Vakulenko | 7$^7$ | 4 | 5 | | | | | | | | |
| LL | J Vakulenko | 6 | 6 | | | | | | | 5 | P Schnyder | 6$^6$ | 0$^r$ | | | | |
| WC | E Callens | 6 | 7$^7$ | | | | | | | 8 | S Farina Elia | 7$^8$ | 1 | | | | |
| | É Loit | 1 | 6$^3$ | | WC | E Callens | 6 | 2 | 1 | | | | | | | | |
| | M Sánchez Lorenzo | 3 | 0 | | 8 | S Farina Elia | 3 | 6 | 6 | | | | | | | | |
| 8 | S Farina Elia | 6 | 6 | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 10 | M Serna | 4 | 2 | | | | | | | | | | | | | | | |
| Q | K Koukalová | 6 | 6 | | | K Koukalová | 6 | 7$^7$ | | | | | | | | | | |
| | D Safina | 6 | 6 | | | D Safina | 4 | 6$^2$ | | | | | | | | | | |
| | A Barna | 4 | 4 | | | | | | | | K Koukalová | 6 | 3 | 4 | | | | |
| | T Pisnik | 6 | 3 | 6 | | | | | | LL | M Casanova | 4 | 6 | 6 | | | | |
| | P Mandula | 1 | 6 | 2 | | T Pisnik | 1 | 7$^7$ | 4 | | | | | | | | | |
| | | | | | LL | M Casanova | 6 | 6$^4$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | | LL | M Casanova | 1 | 2 |
| 9 | M Maleeva | 6 | 6 | | | | | | | | | | | | 2 | K Clijsters | 6 | 6 |
| | M Pierce | 4 | 4 | | 9 | M Maleeva | 6 | 6 | | | | | | | | | | |
| Q | I Benešová | 7 | 6 | | Q | I Benešová | 4 | 4 | | | | | | | | | | |
| | E Daniilidou | 5 | 4 | | | | | | | 9 | M Maleeva | 6$^2$ | 2 | | | | | |
| LL | A Parra Santonja | 6 | 6 | | | | | | | 2 | K Clijsters | 7$^7$ | 6 | | | | | |
| WC | E Clijsters | 3 | 2 | | LL | A Parra Santonja | 3 | 2 | | | | | | | | | | |
| | | | | | 2 | K Clijsters | 6 | 6 | | | | | | | | | | |