# 2005 ECM Prague Open – Men's singles

The men's singles of the 2005 ECM Prague Open tournament was played on clay in Prague, Czech Republic.
Jan Hernych successfully defended his title, by defeating Jiří Vaněk 3–6, 6–4, 6–3 in the final.

## Seeds

* Tomáš Zíb (second round)
* Jan Hernych (champion)
* Peter Wessels (first round)
* Gaël Monfils (quarterfinals)
* Raemon Sluiter (first round)
* Marcos Baghdatis (first round)
* Jiří Vaněk (final)
* Michal Tabara (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 | Semifinals | Final | Final | Final | Final | Final |
| 7 | Jiří Vaněk | 6$^3$ | 6 | 6 | | | | | |
| | Flávio Saretta | 7$^7$ | 1 | 4 | | | | | |
| | Flávio Saretta | 7$^7$ | 1 | 4 | 7 | Jiří Vaněk | 6 | 4 | 3 |
| | | | | | 2 | Jan Hernych | 3 | 6 | 6 |
| | Kristof Vliegen | 6$^1$ | 0 | | 2 | Jan Hernych | 3 | 6 | 6 |
| 2 | Jan Hernych | 7$^7$ | 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 | Semifinals |
| 1 | T Zíb | 6 | 6 | | | | | | | | | | | | | | | | |
| SE | L Dlouhý | 1 | 4 | | 1 | T Zíb | 2 | 5 | | | | | | | | | | | |
| Q | R Vik | 4 | 6 | 6 | Q | R Vik | 6 | 7 | | | | | | | | | | | |
| Q | J Mertl | 6 | 2 | 3 | | | | | | Q | R Vik | 6$^5$ | 6$^8$ | | | | | | |
| SE | N Devilder | 6 | 7 | | | | | | | 7 | J Vaněk | 7$^7$ | 7$^{10}$ | | | | | | |
| PR | S Draper | 3 | 5 | | SE | N Devilder | 3 | 3 | | | | | | | | | | | |
| | A di Mauro | 3 | 5 | | 7 | J Vaněk | 6 | 6 | | | | | | | | | | | |
| 7 | J Vaněk | 6 | 7 | | | | | | | | | | | | 7 | J Vaněk | 6$^3$ | 6 | 6 |
| 3 | P Wessels | 5 | 2 | | | | | | | | | | | | | F Saretta | 7$^7$ | 1 | 4 |
| WC | D Lojda | 7 | 6 | | WC | D Lojda | 6$^6$ | 1 | | | | | | | | | | | |
| | A Dupuis | 1 | 4 | | | I Minář | 7$^8$ | 6 | | | | | | | | | | | |
| | I Minář | 6 | 6 | | | | | | | | I Minář | 3 | 6 | 4 | | | | | |
| WC | Filip Zeman | 0 | 5 | | | | | | | | F Saretta | 6 | 3 | 6 | | | | | |
| | F Saretta | 6 | 7 | | | F Saretta | 6 | 2 | 6 | | | | | | | | | | |
| PR | A Falla | 2 | 6 | 5 | 8 | M Tabara | 4 | 6 | 2 | | | | | | | | | | |
| 8 | M Tabara | 6 | 3 | 7 | | | | | | | | | | | | | | | |

### 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 | M Baghdatis | 1 | 2 | | | | | | | | | | | | | | |
| | D Norman | 6 | 6 | | | D Norman | 3 | 3 | | | | | | | | | |
| WC | Adam Vejmělka | 3 | 2 | | | K Vliegen | 6 | 6 | | | | | | | | | |
| | K Vliegen | 6 | 6 | | | | | | | | K Vliegen | 6 | 6 | | | | |
| | N Mahut | 3 | 7 | 2 | | | | | | 4 | G Monfils | 2 | 1 | | | | |
| LL | F Serra | 6 | 5 | 6 | LL | F Serra | 7$^7$ | 4 | 5 | | | | | | | | |
| WC | Jiří Košler | 1 | 0 | | 4 | G Monfils | 6$^3$ | 6 | 7 | | | | | | | | |
| 4 | G Monfils | 6 | 6 | | | | | | | | | | | | K Vliegen | 6$^1$ | 0 |
| 5 | R Sluiter | 4 | 7$^7$ | 3 | | | | | | | | | | 2 | J Hernych | 7$^7$ | 6 |
| | G Lapentti | 6 | 6$^5$ | 6 | | G Lapentti | 2 | 7 | 6 | | | | | | | | |
| | P Luczak | 5 | 4 | | | J Benneteau | 6 | 5 | 4 | | | | | | | | |
| | J Benneteau | 7 | 6 | | | | | | | | G Lapentti | 2 | 3 | | | | |
| | J Nieminen | 6 | 3 | 4 | | | | | | 2 | J Hernych | 6 | 6 | | | | |
| Q | G Blanco | 2 | 6 | 6 | Q | G Blanco | 1 | 0 | | | | | | | | | |
| Q | A Portas | 6 | 3 | 4 | 2 | J Hernych | 6 | 6 | | | | | | | | | |
| 2 | J Hernych | 4 | 6 | 6 | | | | | | | | | | | | | |