# 2009 AON Open Challenger – Singles

Fabio Fognini chose to not defend his 2009 title. Alberto Martín defeated Carlos Berlocq 6–3, 6–3 in the final.

## Seeds

* Albert Montañés (second round)
* Simon Greul (semifinals)
* Evgeny Korolev (quarterfinals)
* Alberto Martín (champion)
* Steve Darcis (semifinals)
* Flavio Cipolla (first round)
* Daniel Brands (quarterfinals)
* Lamine Ouahab (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

### Final four

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 5 | Steve Darcis | 6 | 5 | 3 | | | | |
| Q | Carlos Berlocq | 3 | 7 | 6 | | | | |
| Q | Carlos Berlocq | 3 | 7 | 6 | Q | Carlos Berlocq | 3 | 3 |
| | | | | | 4 | Alberto Martín | 6 | 6 |
| 4 | Alberto Martín | 6 | 6 | | 4 | Alberto Martín | 6 | 6 |
| 2 | Simon Greul | 1 | 4 | | | | | |

### 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 | A Montañés | 2 | 7 | 2 | | | | | | | | | | | | | | | |
| | Y Schukin | 6 | 6$^5$ | 1$^r$ | 1 | A Montañés | 6 | 3 | 4 | | | | | | | | | | |
| | E Schwank | 4 | 6 | 5 | | J-M Aranguren | 4 | 6 | 6 | | | | | | | | | | |
| | J-M Aranguren | 6 | 0 | 7 | | | | | | | J-M Aranguren | 3 | 0 | r | | | | | |
| | K Anderson | 3 | 6 | 4 | | | | | | 5 | S Darcis | 6 | 3 | | | | | | |
| ALT | B Pašanski | 6 | 1 | 6 | ALT | B Pašanski | 6$^3$ | 3 | | | | | | | | | | | |
| | O Dolgopolov Jr. | 4 | 6 | 5 | 5 | S Darcis | 7 | 6 | | | | | | | | | | | |
| 5 | S Darcis | 6 | 3 | 7 | | | | | | | | | | | 5 | S Darcis | 6 | 5 | 3 |
| 3 | E Korolev | 1 | 6 | 6 | | | | | | | | | | | Q | C Berlocq | 3 | 7 | 6 |
| ALT | S Galvani | 6 | 1 | 4 | 3 | E Korolev | 3 | 6 | 7 | | | | | | | | | | |
| WC | D Bracciali | 4 | 6 | 3 | | I Dodig | 6 | 1 | 6$^6$ | | | | | | | | | | |
| | I Dodig | 6 | 2 | 6 | | | | | | 3 | E Korolev | 1 | 6$^3$ | | | | | | |
| Q | A Smirnov | 6 | 6$^3$ | 4 | | | | | | Q | C Berlocq | 6 | 7 | | | | | | |
| | A Sidorenko | 4 | 7 | 6 | | A Sidorenko | 6$^3$ | 6$^5$ | | | | | | | | | | | |
| Q | C Berlocq | 6 | 7 | | Q | C Berlocq | 7 | 7 | | | | | | | | | | | |
| 8 | L Ouahab | 3 | 5 | | | | | | | | | | | | | | | | |

### 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 | F Cipolla | 5 | 4 | | | | | | | | | | | | | | |
| | H Levy | 7 | 6 | | | H Levy | 6 | 4 | 6 | | | | | | | | |
| | L Recouderc | 6 | 6 | | | L Recouderc | 4 | 6 | 2 | | | | | | | | |
| Q | R Valent | 3 | 2 | | | | | | | | H Levy | 3 | 3 | | | | |
| | L Rosol | 5 | 6 | 6 | | | | | | 4 | A Martín | 6 | 6 | | | | |
| | M Crugnola | 7 | 4 | 3 | | L Rosol | 6 | 6$^{13}$ | 2 | | | | | | | | |
| | T Tenconi | 6 | 2 | 2 | 4 | A Martín | 0 | 7 | 6 | | | | | | | | |
| 4 | A Martín | 2 | 6 | 6 | | | | | | | | | | 4 | A Martín | 6 | 6 |
| 7 | D Brands | 6$^1$ | 6 | 7 | | | | | | | | | | 2 | S Greul | 1 | 4 |
| WC | G Dimitrov | 7 | 4 | 6$^2$ | 7 | D Brands | 6 | 6 | | | | | | | | | |
| | A Veić | 6 | 4 | 1 | WC | T Fabbiano | 4 | 4 | | | | | | | | | |
| WC | T Fabbiano | 3 | 6 | 6 | | | | | | 7 | D Brands | 3 | 4 | | | | |
| Q | W Trusendi | 7 | 6 | | | | | | | 2 | S Greul | 6 | 6 | | | | |
| | J-R Lisnard | 5 | 4 | | Q | W Trusendi | 6 | 0 | 6$^3$ | | | | | | | | |
| | F Volandri | 4 | 6 | 4 | 2 | S Greul | 3 | 6 | 7 | | | | | | | | |
| 2 | S Greul | 6 | 2 | 6 | | | | | | | | | | | | | |