# 2005 St. Petersburg Open – Singles

Mikhail Youzhny was the defending champion, but lost in the quarterfinals this year.
Thomas Johansson won the title, beating Nicolas Kiefer 6–4, 6–2 in the final.

## Seeds

* Nikolay Davydenko (quarterfinals)
* Thomas Johansson (champion)
* Max Mirnyi (first round)
* Mikhail Youzhny (quarterfinals)
* Nicolas Kiefer (final)
* Jarkko Nieminen (first round)
* Greg Rusedski (quarterfinals)
* Fernando Verdasco (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 |
| 5 | Nicolas Kiefer | 6 | 6 | | | | | |
| | Robin Vik | 3 | 4 | | | | | |
| | Robin Vik | 3 | 4 | | 5 | Nicolas Kiefer | 4 | 2 |
| | | | | | 2 | Thomas Johansson | 6 | 6 |
| 8 | Fernando Verdasco | 3 | 6 | 3 | 2 | Thomas Johansson | 6 | 6 |
| 2 | Thomas Johansson | 6 | 3 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | N Davydenko | 6 | 6 | | | | | | | | | | | | | | | |
| | L Dlouhý | 2 | 1 | | 1 | N Davydenko | 6 | 6 | | | | | | | | | | |
| | P Goldstein | 7$^8$ | 2 | 6 | | P Goldstein | 3 | 4 | | | | | | | | | | |
| | L Burgsmüller | 6$^6$ | 6 | 3 | | | | | | 1 | N Davydenko | 1 | 1 | | | | | |
| WC | V Davletshin | 3 | 4 | | | | | | | 5 | N Kiefer | 6 | 6 | | | | | |
| | J Melzer | 6 | 6 | | | J Melzer | 6 | 3 | 5 | | | | | | | | | |
| | G García-López | 3 | 6 | 4 | 5 | N Kiefer | 3 | 6 | 7 | | | | | | | | | |
| 5 | N Kiefer | 6 | 3 | 6 | | | | | | | | | | | 5 | N Kiefer | 6 | 6 |
| 4 | M Youzhny | 6 | 4 | | | | | | | | | | | | | R Vik | 3 | 4 |
| | K Beck | 3 | 1$^r$ | | 4 | M Youzhny | 6 | 6 | | | | | | | | | | |
| WC | I Kunitsyn | 3 | 2 | | | C Saulnier | 1 | 1 | | | | | | | | | | |
| | C Saulnier | 6 | 6 | | | | | | | 4 | M Youzhny | 6 | 4 | 2 | | | | |
| | F Serra | 6$^2$ | 6 | 6 | | | | | | | R Vik | 1 | 6 | 6 | | | | |
| Q | J Björkman | 7$^7$ | 3 | 4 | | F Serra | 6$^3$ | 6 | 3 | | | | | | | | | |
| | R Vik | 6 | 6 | | | R Vik | 7$^7$ | 2 | 6 | | | | | | | | | |
| 6 | J Nieminen | 4 | 4 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 8 | F Verdasco | 7$^7$ | 4 | 6 | | | | | | | | | | | | | | |
| WC | M Philippoussis | 6$^4$ | 6 | 2 | 8 | F Verdasco | 7 | 6 | | | | | | | | | | |
| Q | T Gabashvili | 3 | 3 | | | J Mónaco | 5 | 3 | | | | | | | | | | |
| | J Mónaco | 6 | 6 | | | | | | | 8 | F Verdasco | 6 | 6 | | | | | |
| | A Popp | 3 | 6 | 4 | | | | | | | K Carlsen | 4 | 2 | | | | | |
| Q | S Stakhovsky | 6 | 4 | 6 | Q | S Stakhovsky | 7$^7$ | 6$^2$ | 6$^6$ | | | | | | | | | |
| | K Carlsen | 6$^4$ | 7$^7$ | 6 | | K Carlsen | 6$^5$ | 7$^7$ | 7$^8$ | | | | | | | | | |
| 3 | M Mirnyi | 7$^7$ | 6$^5$ | 4 | | | | | | | | | | 8 | F Verdasco | 3 | 6 | 3 |
| 7 | G Rusedski | 6 | 6 | | | | | | | | | | | 2 | T Johansson | 6 | 3 | 6 |
| | D Tursunov | 4 | 4 | | 7 | G Rusedski | 4 | 6 | 6 | | | | | | | | | |
| | I Minář | 1 | 6 | 5 | | K Kim | 6 | 3 | 4 | | | | | | | | | |
| | K Kim | 6 | 4 | 7 | | | | | | 7 | G Rusedski | 2 | 6$^6$ | | | | | |
| Q | J Vaněk | 3 | 6$^5$ | | | | | | | 2 | T Johansson | 6 | 7$^8$ | | | | | |
| | A Pavel | 6 | 7$^7$ | | | A Pavel | 2 | 2 | | | | | | | | | | |
| | P Kohlschreiber | 3 | 4 | | 2 | T Johansson | 6 | 6 | | | | | | | | | | |
| 2 | T Johansson | 6 | 6 | | | | | | | | | | | | | | | |