# 2013 Arimex Challenger Trophy – Singles

Andrey Kuznetsov was the defending champion, but lost to finalist Adrian Ungur in the quarterfinals, who lost to Julian Reister in the final.

## Seeds

* Andrey Kuznetsov (quarterfinals)
* Jan Hájek (quarterfinals, retired)
* Aljaž Bedene (semifinals, retired)
* Julian Reister (champion)
* Adrian Ungur (final)
* Andrej Martin (first round)
* Stéphane Robert (semifinals)
* Dušan Lajović (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 |
| 5 | Adrian Ungur | 7$^7$ | 0 | | | | | |
| 3 | Aljaž Bedene | 6$^3$ | 0$^r$ | | | | | |
| 3 | Aljaž Bedene | 6$^3$ | 0$^r$ | | 5 | Adrian Ungur | 6$^3$ | 3 |
| | | | | | 4 | Julian Reister | 7$^7$ | 6 |
| 4 | Julian Reister | 4 | 6 | 6 | 4 | Julian Reister | 7$^7$ | 6 |
| 7 | Stéphane Robert | 6 | 4 | 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 |
| 1 | A Kuznetsov | 6 | 6 | | | | | | | | | | | | | | | |
| Q | Pascal Brunner | 2 | 4 | | 1 | A Kuznetsov | 6 | 7 | | | | | | | | | | |
| | B Westerhof | 6 | 6$^5$ | 6$^4$ | | F Krajinović | 1 | 5 | | | | | | | | | | |
| | F Krajinović | 2 | 7$^7$ | 7$^7$ | | | | | | 1 | A Kuznetsov | 6$^5$ | 1 | | | | | |
| | R Jebavý | 1 | 6 | 2 | | | | | | 5 | A Ungur | 7$^7$ | 6 | | | | | |
| WC | A Pavlásek | 6 | 4 | 6 | | A Pavlásek | 4 | 1 | | | | | | | | | | |
| | S Darcis | 5 | 2 | | 5 | A Ungur | 6 | 6 | | | | | | | | | | |
| 5 | A Ungur | 7 | 6 | | | | | | | | | | | | 5 | A Ungur | 7$^7$ | 0 |
| 3 | A Bedene | 3 | 6 | 6 | | | | | | | | | | | 3 | A Bedene | 6$^3$ | 0$^r$ |
| Q | N Ćaćić | 6 | 2 | 3 | 3 | A Bedene | 3 | 6 | 7$^7$ | | | | | | | | | |
| | K Edmund | 6 | 7 | | | K Edmund | 6 | 3 | 6$^1$ | | | | | | | | | |
| | JC Campozano | 3 | 5 | | | | | | | 3 | A Bedene | 4 | 6 | 6 | | | | |
| | M Mečíř | 6 | 1 | 4 | | | | | | | K Mesaroš | 6 | 4 | 4 | | | | |
| | J Pospíšil | 1 | 6 | 6 | | J Pospíšil | 0 | 6$^3$ | | | | | | | | | | |
| | K Mesaroš | 6 | 6 | | | K Mesaroš | 6 | 7$^7$ | | | | | | | | | | |
| 6 | A Martin | 2 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | D Lajović | 6 | 6 | | | | | | | | | | | | | | | | |
| | T Schoorel | 1 | 1 | | 8 | D Lajović | 3 | 1 | | | | | | | | | | | |
| WC | M Urbanija | 3 | 1 | | | N Gombos | 6 | 6 | | | | | | | | | | | |
| | N Gombos | 6 | 6 | | | | | | | | N Gombos | 5 | 2 | | | | | | |
| | E López Pérez | 1 | 2 | | | | | | | 4 | J Reister | 7 | 6 | | | | | | |
| WC | P Červenák | 6 | 6 | | WC | P Červenák | 3 | 7 | 3 | | | | | | | | | | |
| | A Brizzi | 2 | 1 | | 4 | J Reister | 6 | 5 | 6 | | | | | | | | | | |
| 4 | J Reister | 6 | 6 | | | | | | | | | | | | 4 | J Reister | 4 | 6 | 6 |
| 7 | S Robert | 6 | 6 | | | | | | | | | | | | 7 | S Robert | 6 | 4 | 4 |
| | S Vagnozzi | 4 | 4 | | 7 | S Robert | 6 | 7 | | | | | | | | | | | |
| | Adrian Sikora | 2 | 3 | | | D Džumhur | 1 | 5 | | | | | | | | | | | |
| | D Džumhur | 6 | 6 | | | | | | | 7 | S Robert | 6$_4$ | 6 | 4 | | | | | |
| WC | Martin Přikryl | 0 | 0$^r$ | | | | | | | 2 | J Hájek | 7$^7$ | 3 | 0$^r$ | | | | | |
| Q | A van der Duim | 6 | 3 | | Q | A van der Duim | 2 | 2 | | | | | | | | | | | |
| Q | R Bellotti | 5 | 6 | 0 | 2 | J Hájek | 6 | 6 | | | | | | | | | | | |
| 2 | J Hájek | 7 | 3 | 6 | | | | | | | | | | | | | | | |