# 2012 Banja Luka Challenger – Singles

Blaž Kavčič was the defending champion, but retired from his first round match with a back injury. Victor Hănescu won the title, defeating Andreas Haider-Maurer 6–4, 6–1 in the final.

## Seeds

* Blaž Kavčič (first round, retired because of a back injury)
* Björn Phau (second round, withdrew because of a back injury)
* Victor Hănescu (champion)
* Antonio Veić (second round)
* Dušan Lajović (second round)
* Jonathan Dasnières de Veigy (first round)
* Andreas Haider-Maurer (final)
* Pavol Červenák (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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Simone Vagnozzi | 4 | 5 | | | | |
| 3 | Victor Hănescu | 6 | 7 | | | | |
| 3 | Victor Hănescu | 6 | 7 | 3 | Victor Hănescu | 6 | 6 |
| | | | | 7 | Andreas Haider-Maurer | 4 | 1 |
| 7 | Andreas Haider-Maurer | 6 | 6 | 7 | Andreas Haider-Maurer | 4 | 1 |
| | Ivan Sergeyev | 2 | 3 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | B Kavčič | 5 | 6 | 2$^r$ | | | | | | | | | | | | | |
| Q | Steven Moneke | 7 | 3 | 3 | Q | Steven Moneke | 6 | 6 | | | | | | | | | |
| | F Škugor | 7$^7$ | 6 | | | F Škugor | 3 | 4 | | | | | | | | | |
| WC | M Djokovic | 6$^4$ | 2 | | | | | | | Q | Steven Moneke | 6$^0$ | 3 | | | | |
| Q | van der Duim | 6 | 6 | | | | | | | | S Vagnozzi | 7$^7$ | 6 | | | | |
| | M Linzer | 3 | 1 | | Q | van der Duim | 2 | r | | | | | | | | | |
| | S Vagnozzi | 6 | 6 | | | S Vagnozzi | 6 | | | | | | | | | | |
| 6 | J Dasnières de Veigy | 3 | 0 | | | | | | | | | | | | S Vagnozzi | 4 | 5 |
| 3 | V Hănescu | 6 | 6 | | | | | | | | | | | 3 | V Hănescu | 6 | 7 |
| | J Checa-Calvo | 3 | 1 | | 3 | V Hănescu | 7$^7$ | 6 | | | | | | | | | |
| | A Šetkić | 6$^3$ | 6 | 7 | | A Šetkić | 6$^4$ | 2 | | | | | | | | | |
| | J Mertl | 7$^7$ | 2 | 5 | | | | | | 3 | V Hănescu | 6 | 6 | | | | |
| | N Mektić | 6 | 7$^7$ | | | | | | | | N Mektić | 0 | 2 | | | | |
| WC | N Čačić | 2 | 6$^4$ | | | N Mektić | 7$^{17}$ | 4 | 7$^9$ | | | | | | | | |
| | B Westerhof | 4 | 7 | 6 | | B Westerhof | 6$^{15}$ | 6 | 6$^7$ | | | | | | | | |
| 8 | P Červenák | 6 | 5 | 3 | | | | | | | | | | | | | |

### 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 | A Haider-Maurer | 6 | 6 | | | | | | | | | | | | | | | |
| | D Džumhur | 3 | 2 | | 7 | A Haider-Maurer | 6 | 6 | | | | | | | | | | |
| | K Čapkovič | 6 | 3 | 4 | WC | T Brkić | 1 | 4 | | | | | | | | | | |
| WC | T Brkić | 4 | 6 | 6 | | | | | | 7 | A Haider-Maurer | 6 | 6 | | | | | |
| | M Middelkoop | 4 | 1 | | | | | | | | S Greul | 3 | 4 | | | | | |
| | S Greul | 6 | 6 | | | S Greul | 7 | 6 | | | | | | | | | | |
| Q | A Smirnov | 4 | 0 | | 4 | A Veić | 5 | 0 | | | | | | | | | | |
| 4 | A Veić | 6 | 6 | | | | | | | | | | | | 7 | A Haider-Maurer | 6 | 6 |
| 5 | D Lajović | 6 | 6 | | | | | | | | | | | | | I Sergeyev | 2 | 3 |
| WC | B Trinker | 4 | 3 | | 5 | D Lajović | 7$^7$ | 2 | 5 | | | | | | | | | |
| | I Sergeyev | 6 | 6 | | | I Sergeyev | 6$^2$ | 6 | 7 | | | | | | | | | |
| | A Balázs | 3 | 2 | | | | | | | | I Sergeyev | 3 | 6 | 6 | | | | |
| | P Torebko | 4 | 6 | 6 | | | | | | | P Torebko | 6 | 2 | 3 | | | | |
| Q | C Gómez-Herrera | 6 | 1 | 2 | | P Torebko | w/o | | | | | | | | | | | |
| | D Marcan | 4 | 6$^6$ | | 2 | B Phau | | | | | | | | | | | | |
| 2 | B Phau | 6 | 7$^8$ | | | | | | | | | | | | | | | |