# 2015 Arimex Challenger Trophy – Singles

Andreas Haider-Maurer was the defending champion but chose to compete at the St. Petersburg Open instead

## Seeds

* Robin Haase (champion)
* Marco Cecchinato (withdrew)
* Íñigo Cervantes (second round)
* Albert Montañés (semifinals)
* Taro Daniel (second round)
* Horacio Zeballos (final)
* Thiemo de Bakker (first round)
* Adam Pavlásek (quarterfinals)

## 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 |
| 1 | Robin Haase | 6 | 6 | | | | |
| 4 | Albert Montañés | 2 | 2 | | | | |
| 4 | Albert Montañés | 2 | 2 | 1 | Robin Haase | 6 | 6 |
| | | | | 6 | Horacio Zeballos | 4 | 1 |
| | Franko Škugor | 2 | 2 | 6 | Horacio Zeballos | 4 | 1 |
| 6 | Horacio Zeballos | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | R Haase | 2 | 6 | 7$^7$ | | | | | | | | | | | | | |
| Q | R Bellotti | 6 | 2 | 6$^5$ | 1 | R Haase | 6 | 6 | | | | | | | | | |
| WC | Dominik Šproch | 0 | 2 | | | M Linzer | 3 | 2 | | | | | | | | | |
| | M Linzer | 6 | 6 | | | | | | 1 | R Haase | 4 | 6 | 6 | | | | |
| SE | A Smirnov | 6 | 6 | | | | | | | G Melzer | 6 | 3 | 3 | | | | |
| Q | Lenny Hampel | 1 | 2 | | SE | A Smirnov | 1 | 2 | | | | | | | | | |
| | G Melzer | 3 | 7$^7$ | 6 | | G Melzer | 6 | 6 | | | | | | | | | |
| 7 | T de Bakker | 6 | 6$^4$ | 3 | | | | | | | | | | 1 | R Haase | 6 | 6 |
| 4 | A Montañés | 6 | 6 | | | | | | | | | | | 4 | A Montañés | 2 | 2 |
| WC | Martin Blasko | 3 | 4 | | 4 | A Montañés | 7$^7$ | 6 | | | | | | | | | |
| WC | A Molčan | 7$^8$ | 7$^7$ | | WC | A Molčan | 6$^5$ | 4 | | | | | | | | | |
| | J Šátral | 5$^6$ | 6$^2$ | | | | | | 4 | A Montañés | 6 | 6 | | | | | |
| Q | M Mečíř Jr. | 4 | 0 | | | | | | 8 | A Pavlásek | 2 | 4 | | | | | |
| | K Majchrzak | 6 | 6 | | | K Majchrzak | 4 | 6$^3$ | | | | | | | | | |
| WC | A Dubrivnyy | 2 | 2 | | 8 | A Pavlásek | 6 | 7$^7$ | | | | | | | | | |
| 8 | A Pavlásek | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | T Daniel | 6 | 6 | | | | | | | | | | | | | | |
| Q | T-S Weissborn | 3 | 4 | | 5 | T Daniel | 1 | 5 | | | | | | | | | |
| | M Michalička | 4 | 4 | | | M Fucsovics | 6 | 7 | | | | | | | | | |
| | M Fucsovics | 6 | 6 | | | | | | | M Fucsovics | 7$^7$ | 0 | 3 | | | | |
| | F Škugor | 6$^5$ | 6 | 6 | | | | | | F Škugor | 6$^4$ | 6 | 6 | | | | |
| | L Giustino | 7$^7$ | 3 | 3 | | F Škugor | 7$^7$ | 7 | | | | | | | | | |
| | U Ignatik | 4 | 6$^3$ | | 3 | Í Cervantes | 6$^5$ | 5 | | | | | | | | | |
| 3 | Í Cervantes | 6 | 7$^7$ | | | | | | | | | | | | F Škugor | 2 | 2 |
| 6 | H Zeballos | 4 | | | | | | | | | | | | 6 | H Zeballos | 6 | 6 |
| | R Machado | 0$^r$ | | | 6 | H Zeballos | 6 | 6 | | | | | | | | | |
| | J Pospíšil | 1 | 3 | | | D Lojda | 3 | 3 | | | | | | | | | |
| | D Lojda | 6 | 6 | | | | | | 6 | H Zeballos | 6 | 6 | | | | | |
| | A Martin | 5 | 2 | | | | | | | S Robert | 1 | 2 | | | | | |
| | S Robert | 7 | 6 | | | S Robert | 6 | 6 | | | | | | | | | |
| | F Gaio | 6 | 0 | 7 | | F Gaio | 4 | 3 | | | | | | | | | |
| LL | V Šafránek | 4 | 6 | 5 | | | | | | | | | | | | | |