# 2015 Croatia Open Umag – Singles

Pablo Cuevas was the last edition champion, but he chose to defend another of his previous title in Båstad which was held simultaneously with the Croatia Open Umag this year.
Dominic Thiem won the title, defeating João Sousa in the final, 6–4, 6–1.

## Seeds

The top four seeds receive a bye into the second round.
* Gaël Monfils (semifinals)
* Roberto Bautista Agut (semifinals)
* Andreas Seppi (second round)
* Dominic Thiem (champion)
* Fabio Fognini (quarterfinals)
* Philipp Kohlschreiber (quarterfinals)
* Borna Ćorić (quarterfinals)
* Martin Kližan (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 |
| 1 | Gaël Monfils | 6 | 3 | 1 | | | | |
| 4 | Dominic Thiem | 1 | 6 | 6 | | | | |
| 4 | Dominic Thiem | 1 | 6 | 6 | 4 | Dominic Thiem | 6 | 6 |
| | | | | | | João Sousa | 4 | 1 |
| | João Sousa | 4 | 6 | 6 | | João Sousa | 4 | 1 |
| 2 | Roberto Bautista Agut | 6 | 2 | 3 | | | | |

### 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 | Semifinals |
| | | | | | 1 | G Monfils | 6 | 6 | | | | | | | | | | |
| Q | B Trinker | 2 | 6 | 6 | Q | B Trinker | 3 | 0 | | | | | | | | | | |
| | M Youzhny | 6 | 3 | 3 | | | | | 1 | G Monfils | 4 | 7$^7$ | 6 | | | | | |
| Q | M Trevisan | 6 | 2 | 5 | | | | | 6 | P Kohlschreiber | 6 | 6$^5$ | 4 | | | | | |
| | P Lorenzi | 1 | 6 | 7 | | P Lorenzi | 2 | 5 | | | | | | | | | | |
| | S Giraldo | 3 | 2 | | 6 | P Kohlschreiber | 6 | 7 | | | | | | | | | | |
| 6 | P Kohlschreiber | 6 | 6 | | | | | | | | | | | 1 | G Monfils | 6 | 3 | 1 |
| | | | | | | | | | | | | | | 4 | D Thiem | 1 | 6 | 6 |
| | | | | | 4 | D Thiem | 6 | 3 | | | | | | | | | | |
| | D Lajović | 6 | 6 | | | D Lajović | 1 | 1$^r$ | | | | | | | | | | |
| Q | L Djere | 3 | 3 | | | | | | 4 | D Thiem | 6$^5$ | 6 | 3 | | | | | |
| Q | T Fabbiano | 3 | 4 | | | | | | | A Haider-Maurer | 7$^7$ | 1 | 0$^r$ | | | | | |
| | A Haider-Maurer | 6 | 6 | | | A Haider-Maurer | 6 | 6 | | | | | | | | | | |
| | P Carreño Busta | 6$^3$ | 7$^{10}$ | 1 | 8 | M Kližan | 4 | 4 | | | | | | | | | | |
| 8 | M Kližan | 7$^7$ | 6$^8$ | 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 | Semifinals |
| 5 | F Fognini | 6 | 6 | | | | | | | | | | | | | | | |
| | J Veselý | 4 | 4 | | 5 | F Fognini | 6 | 7 | | | | | | | | | | |
| | D Džumhur | 6 | 6 | | | D Džumhur | 3 | 5 | | | | | | | | | | |
| | L Rosol | 3 | 0 | | | | | | 5 | F Fognini | 2 | 6 | 6$^6$ | | | | | |
| WC | T Androić | 2 | 1 | | | | | | | J Sousa | 6 | 3 | 7$^8$ | | | | | |
| | J Sousa | 6 | 6 | | | J Sousa | 6 | 6 | | | | | | | | | | |
| | | | | | 3 | A Seppi | 2 | 2 | | | | | | | | | | |
| | | | | | | | | | | | | | | | J Sousa | 4 | 6 | 6 |
| 7 | B Ćorić | 6 | 6 | | | | | | | | | | | 2 | R Bautista Agut | 6 | 2 | 3 |
| | M Granollers | 3 | 3 | | 7 | B Ćorić | 6 | 6 | | | | | | | | | | |
| WC | M Delić | 4 | 3 | | | A Bedene | 4 | 4 | | | | | | | | | | |
| | A Bedene | 6 | 6 | | | | | | 7 | B Ćorić | 3 | 3 | | | | | | |
| WC | A Rublev | 6$^0$ | 6 | 3 | | | | | 2 | R Bautista Agut | 6 | 6 | | | | | | |
| | B Kavčič | 7$^7$ | 2 | 6 | | B Kavčič | 1 | 2 | | | | | | | | | | |
| | | | | | 2 | R Bautista Agut | 6 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Facundo Bagnis (qualifying competition)
* Máximo González (qualifying competition)
* Gerald Melzer (qualifying competition)
* Laslo Djere (qualified)
* Thomas Fabbiano (qualified)
* Matteo Viola (first round)
* Roberto Marcora (qualifying competition)
* Franko Škugor (second round)

### Qualifiers

* Matteo Trevisan
* Thomas Fabbiano
* Bastian Trinker
* Laslo Djere

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 1 | Facundo Bagnis | 6 | 6 | | | | | | |
| | Filippo Leonardi | 6 | 6 | | Filippo Leonardi | 3 | 3 | | | | | | |
| | Santiago González | 2 | 4 | | | | | | 1 | Facundo Bagnis | 6$^3$ | 6 | 1 |
| | Matteo Trevisan | 7 | 6 | | | | | | | Matteo Trevisan | 7$^7$ | 1 | 6 |
| | André Sá | 5 | 2 | | Matteo Trevisan | 3 | 6 | 7$^7$ | | | | | |
| WC | Fran Zvonimir Zgombić | 4 | 4 | 8 | Franko Škugor | 6 | 1 | 6$^3$ | | | | | |
| 8 | Franko Škugor | 6 | 6 | | | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 2 | Máximo González | 6 | 6 | | | | |
| | Wilson Leite | 6 | 6 | | Wilson Leite | 2 | 4 | | | | |
| | Mike Urbanija | 0 | 3 | | | | | 2 | Máximo González | 3 | 4 |
| | Agustín Velotti | 6 | 1 | | | | | 5 | Thomas Fabbiano | 6 | 6 |
| | Denis Bejtulahi | 3 | 0$^r$ | | Agustín Velotti | 1 | 3 | | | | |
| WC | Stjepan Čagalj | 3 | 2$^r$ | 5 | Thomas Fabbiano | 6 | 6 | | | | |
| 5 | Thomas Fabbiano | 6 | 2 | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | | 3 | Gerald Melzer | 6 | 6 | | | | |
| WC | Domagoj Bilješko | 3 | 2 | | | Dmitry Surchenko | 1 | 3 | | | | |
| | Dmitry Surchenko | 6 | 6 | | | | | | 3 | Gerald Melzer | 6$^2$ | 2 |
| WC | Patrik Šudić | 1 | 2 | | | | | | | Bastian Trinker | 7$^7$ | 6 |
| | Mladen Mitak | 6 | 6 | | | Mladen Mitak | 1 | 1 | | | | |
| | Bastian Trinker | 6 | 2 | 6 | | Bastian Trinker | 6 | 6 | | | | |
| 6 | Matteo Viola | 4 | 6 | 2 | | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 4 | Laslo Djere | 6 | 7 | | | | |
| | Nikola Mektić | 6 | 7 | | Nikola Mektić | 3 | 5 | | | | |
| | Pietro Licciardi | 3 | 5 | | | | | 4 | Laslo Djere | 7 | 6 |
| | Viktor Galović | 1 | 3 | | | | | 7 | Roberto Marcora | 5 | 3 |
| | Michael Linzer | 6 | 6 | | Michael Linzer | 6 | 4$^r$ | | | | |
| | Sherif Sabry | 3 | 2 | 7 | Roberto Marcora | 4 | 4 | | | | |
| 7 | Roberto Marcora | 6 | 6 | | | | | | | | |