title: 2004 ATP Buenos Aires – Singles
text: # 2004 ATP Buenos Aires – Singles
  
  Carlos Moyá was the defending champion but lost in the final 6–4, 6–1 against Guillermo Coria.
  
  ## Seeds
  
  * Guillermo Coria (champion)
  * Carlos Moyá (final)
  * Nicolás Massú (quarterfinals)
  * Gustavo Kuerten (first round)
  * Agustín Calleri (second round)
  * Mariano Zabaleta (quarterfinals)
  * Gastón Gaudio (first round)
  * Juan Ignacio Chela (second 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 | Guillermo Coria | $7^7$ | 6 | | | | |
  | | Richard Gasquet | $6^1$ | 1 | | | | |
  | | Richard Gasquet | $6^1$ | 1 | 1 | Guillermo Coria | 6 | 6 |
  | | | | | 2 | Carlos Moyá | 4 | 1 |
  | | José Acasuso | $6^3$ | 5 | 2 | Carlos Moyá | 4 | 1 |
  | 2 | Carlos Moyá | $7^7$ | 7 | | | | |
  
  ### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | G Coria | 6 | 6 | | | | | | | | | | | | | | | |
  | | L Horna | 1 | 2 | | 1 | G Coria | 6 | 4 | 6 | | | | | | | | | |
  | WC | F Squillari | 6 | 6 | | WC | F Squillari | 3 | 6 | 1 | | | | | | | | | |
  | Q | M López | 0 | 1 | | | | | | | 1 | G Coria | $7^{10}$ | 3 | 6 | | | | |
  | | N Lapentti | $6^2$ | 1 | | | | | | | WC | J Mónaco | $6^8$ | 6 | 1 | | | | |
  | WC | J Mónaco | $7^7$ | 6 | | WC | J Mónaco | $7^7$ | 6 | | | | | | | | | | |
  | Q | G Lapentti | 5 | 0 | | 8 | J I Chela | $6^4$ | 3 | | | | | | | | | | |
  | 8 | J I Chela | 7 | 6 | | | | | | | | | | | | 1 | G Coria | $7^7$ | 6 |
  | 3 | N Massú | 6 | 6 | | | | | | | | | | | | | R Gasquet | $6^1$ | 1 |
  | | A Montañés | 1 | 3 | | 3 | N Massú | 6 | 6 | | | | | | | | | | |
  | WC | G Cañas | 3 | 6 | 2 | | F Volandri | 2 | 4 | | | | | | | | | | |
  | | F Volandri | 6 | 4 | 6 | | | | | | 3 | N Massú | 3 | 6 | 5 | | | | |
  | | R Gasquet | 2 | 7 | 6 | | | | | | | R Gasquet | 6 | 4 | 7 | | | | |
  | | F Verdasco | 6 | 5 | 1 | | R Gasquet | 7 | 6 | | | | | | | | | | |
  | | G Blanco | 4 | 2 | | 5 | A Calleri | 5 | 2 | | | | | | | | | | |
  | 5 | A Calleri | 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 |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 7 | G Gaudio | 3 | $6^6$ | | | | | | | | | | | | | | | |
  | | J Acasuso | 6 | $7^8$ | | | J Acasuso | 3 | $7^{11}$ | 6 | | | | | | | | | |
  | Q | O Patience | 6 | 6 | | Q | O Patience | 6 | $6^9$ | 4 | | | | | | | | | |
  | | A Portas | 4 | 3 | | | | | | | | J Acasuso | 7 | $7^7$ | | | | | |
  | | F Saretta | 6 | 6 | | | | | | | | D Ferrer | 5 | $6^5$ | | | | | |
  | | T Behrend | 4 | 2 | | | F Saretta | $6^1$ | 6 | 2 | | | | | | | | | |
  | | D Ferrer | 6 | 7 | | | D Ferrer | $7^7$ | 3 | 6 | | | | | | | | | |
  | 4 | G Kuerten | 3 | 5 | | | | | | | | | | | | | J Acasuso | $6^3$ | 5 |
  | 6 | M Zabaleta | 6 | 6 | | | | | | | | | | | | 2 | C Moyá | $7^7$ | 7 |
  | | J-R Lisnard | 4 | 4 | | 6 | M Zabaleta | 6 | 6 | | | | | | | | | | |
  | Q | D Moyano | 1 | 6 | 4 | | Ó Hernández | 1 | 4 | | | | | | | | | | |
  | | Ó Hernández | 6 | 4 | 6 | | | | | | 6 | M Zabaleta | 6 | $6^4$ | 4 | | | | |
  | | R Ramírez Hidalgo | 6 | 0 | 1 | | | | | | 2 | C Moyá | 4 | $7^7$ | 6 | | | | |
  | | D Sánchez | 3 | 6 | 6 | | D Sánchez | $6^5$ | 6 | $6^5$ | | | | | | | | | |
  | | H Levy | 2 | 4 | | 2 | C Moyá | $7^7$ | 1 | $7^7$ | | | | | | | | | |
  | 2 | C Moyá | 6 | 6 | | | | | | | | | | | | | | | |
  