# 2004 Qatar Open – Singles

Stefan Koubek was the defending champion but lost in the second round to Hyung-Taik Lee.
Nicolas Escudé won in the final 6–3, 7–6$^{(7–4)}$ against Ivan Ljubičić.

## Seeds

* Andy Roddick (second round)
* Rainer Schüttler (first round)
* Mark Philippoussis (first round)
* Sébastien Grosjean (quarterfinals)
* Nicolás Massú (first round)
* Younes El Aynaoui (first round)
* Tim Henman (semifinals)
* Agustín Calleri (semifinals)

## 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 | Semifinals | Final | Final | Final | Final |
| 8 | Agustín Calleri | 2 | 3 | | | | | |
| WC | Nicolas Escudé | 6 | 6 | | | | | |
| WC | Nicolas Escudé | 6 | 6 | | WC | Nicolas Escudé | 6 | 7$^7$ |
| | | | | | | Ivan Ljubičić | 3 | 6$^4$ |
| | Ivan Ljubičić | 7$^7$ | 3 | 7$^7$ | | Ivan Ljubičić | 3 | 6$^4$ |
| 7 | Tim Henman | 6$^2$ | 6 | 6$^5$ | | | | |

### 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 |
| 1 | A Roddick | 6 | 6 | | | | | | | | | | | | | | |
| | N Davydenko | 3 | 4 | | 1 | A Roddick | 3 | 4 | | | | | | | | | |
| | R Štěpánek | 3 | 0$^r$ | | | J Björkman | 6 | 6 | | | | | | | | | |
| | J Björkman | 6 | 3 | | | | | | | | J Björkman | 4 | 4 | | | | |
| | H Arazi | 7$^7$ | 2 | 6 | | | | | | 8 | A Calleri | 6 | 6 | | | | |
| WC | T Enqvist | 6$^1$ | 6 | 3 | | H Arazi | 6 | 4 | 5 | | | | | | | | |
| | F Volandri | 4 | 6 | 4 | 8 | A Calleri | 4 | 6 | 7 | | | | | | | | |
| 8 | A Calleri | 6 | 4 | 6 | | | | | | | | | | 8 | A Calleri | 2 | 3 |
| 3 | M Philippoussis | 6 | 1 | 4 | | | | | | | | | | WC | N Escudé | 6 | 6 |
| | S Koubek | 3 | 6 | 6 | | S Koubek | 4 | 4 | | | | | | | | | |
| | H-T Lee | 1 | | | | H-T Lee | 6 | 6 | | | | | | | | | |
| Q | V Voltchkov | 2$^r$ | | | | | | | | | H-T Lee | 4 | 2 | | | | |
| Q | I Heuberger | 6 | 6 | | | | | | | WC | N Escudé | 6 | 6 | | | | |
| WC | S Khalfan | 2 | 2 | | Q | I Heuberger | 3 | 2 | | | | | | | | | |
| WC | N Escudé | 6 | 6 | | WC | N Escudé | 6 | 6 | | | | | | | | | |
| 6 | Y El Aynaoui | 3 | 0 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 5 | N Massú | 3 | 3 | | | | | | | | | | | | | | | | |
| | I Ljubičić | 6 | 6 | | | I Ljubičić | 6 | 6 | | | | | | | | | | | |
| | R Söderling | 6$^7$ | 6 | 6 | | R Söderling | 2 | 4 | | | | | | | | | | | |
| | J-M Gambill | 7$^9$ | 3 | 3 | | | | | | | I Ljubičić | 6 | 5 | 6 | | | | | |
| | N Kiefer | 2 | 1 | | | | | | | 4 | S Grosjean | 3 | 7 | 4 | | | | | |
| Q | B Ulihrach | 6 | 6 | | Q | B Ulihrach | 1 | 4 | | | | | | | | | | | |
| Q | M Hantschk | 1 | 5 | | 4 | S Grosjean | 6 | 6 | | | | | | | | | | | |
| 4 | S Grosjean | 6 | 7 | | | | | | | | | | | | | I Ljubičić | 7$^7$ | 3 | 7$^7$ |
| 7 | T Henman | 6 | 6 | | | | | | | | | | | | 7 | T Henman | 6$^2$ | 6 | 6$^5$ |
| | D Sánchez | 4 | 0 | | 7 | T Henman | 6 | 6 | | | | | | | | | | | |
| | J I Chela | 6 | 3 | 7 | | J I Chela | 3 | 4 | | | | | | | | | | | |
| | O Rochus | 1 | 6 | 5 | | | | | | 7 | T Henman | 6 | 6 | | | | | | |
| | G Carraz | 6 | 0 | 3 | | | | | | | S Sargsian | 3 | 1 | | | | | | |
| | S Sargsian | 3 | 6 | 6 | | S Sargsian | 3 | 6 | 6 | | | | | | | | | | |
| | M Youzhny | 6 | 7$^7$ | | | M Youzhny | 6 | 3 | 2 | | | | | | | | | | |
| 2 | R Schüttler | 3 | 6$^5$ | | | | | | | | | | | | | | | | |