# 2013 Rai Open – Singles

Roberto Bautista-Agut was the defending champion but decided not to participate. Julian Reister defeated Guillermo García-López 4–6, 6–3, 6–2 in the final to win the title.

## Seeds

* Andrey Kuznetsov (second round)
* Jan Hájek (second round)
* Guillermo García-López (final)
* Andreas Haider-Maurer (quarterfinals)
* Jan-Lennard Struff (second round)
* Marius Copil (first round)
* Björn Phau (second round)
* Olivier Rochus (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 | Final |
| | Julian Reister | 6 | 7 | | | | | | |
| | Dušan Lajović | 2 | 5 | | | | | | |
| | Dušan Lajović | 2 | 5 | | | Julian Reister | 4 | 6 | 6 |
| | | | | | 3 | Guillermo García-López | 6 | 3 | 2 |
| 3 | Guillermo García-López | 6 | 4 | 6 | 3 | Guillermo García-López | 6 | 3 | 2 |
| | Simon Greul | 4 | 6 | 2 | | | | | |

### 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 |
| 1 | A Kuznetsov | 6$^2$ | 6 | 6 | | | | | | | | | | | | |
| | E Korolev | 7$^7$ | 2 | 1 | 1 | A Kuznetsov | 6 | 3 | 4 | | | | | | | |
| WC | F Baldi | 1 | 1 | | | J Reister | 3 | 6 | 6 | | | | | | | |
| | J Reister | 6 | 6 | | | | | | | | J Reister | 6 | 6 | | | |
| | O Nedovyesov | 6 | 4 | 6 | | | | | | | O Nedovyesov | 2 | 3 | | | |
| | D Brown | 2 | 6 | 2 | | O Nedovyesov | 6 | 6 | | | | | | | | |
| | A Beck | 4 | 6 | 4 | 5 | J-L Struff | 4 | 3 | | | | | | | | |
| 5 | J-L Struff | 6 | 4 | 6 | | | | | | | | | | J Reister | 6 | 7 |
| 4 | A Haider-Maurer | 6 | 6 | | | | | | | | | | | D Lajović | 2 | 5 |
| | P Carreño | 3 | 2 | | 4 | A Haider-Maurer | 6 | 6 | | | | | | | | |
| WC | G Quinzi | 6 | 4 | 3 | | F Gil | 1 | 0 | | | | | | | | |
| | F Gil | 4 | 6 | 6 | | | | | | 4 | A Haider-Maurer | 2 | 3 | | | |
| | M İlhan | 0 | 1 | | | | | | | | D Lajović | 6 | 6 | | | |
| WC | P Starace | 6 | 6 | | WC | P Starace | 4 | 6 | 5 | | | | | | | |
| | D Lajović | 6 | 6 | | | D Lajović | 6 | 1 | 7 | | | | | | | |
| 6 | M Copil | 0 | 1 | | | | | | | | | | | | | |

### 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 | Semifinals |
| 7 | B Phau | 6 | 6 | | | | | | | | | | | | | | | |
| Q | A di Mauro | 2 | 0 | | 7 | B Phau | 5 | 6 | 1 | | | | | | | | | |
| | U Ignatik | 5 | 6$^2$ | | | J Veselý | 7 | 4 | 6 | | | | | | | | | |
| | J Veselý | 7 | 7$^7$ | | | | | | | | J Veselý | 4 | 1 | | | | | |
| WC | S Napolitano | 3 | 5 | | | | | | | 3 | G García-López | 6 | 6 | | | | | |
| | D Meffert | 6 | 7 | | | D Meffert | 5 | 3 | | | | | | | | | | |
| Q | S Ehrat | 1 | 2 | | 3 | G García-López | 7 | 6 | | | | | | | | | | |
| 3 | G García-López | 6 | 6 | | | | | | | | | | | 3 | G García-López | 6 | 4 | 6 |
| 8 | O Rochus | 6 | 6 | | | | | | | | | | | | S Greul | 4 | 6 | 2 |
| Q | D Thiem | 1 | 4 | | 8 | O Rochus | 7 | 6$^4$ | 3 | | | | | | | | | |
| | B Knittel | 2 | 4 | | | S Greul | 5 | 7$^7$ | 6 | | | | | | | | | |
| | S Greul | 6 | 6 | | | | | | | | S Greul | 6 | 7 | | | | | |
| Q | M Fischer | 5 | 6 | 7$^{10}$ | | | | | | Q | M Fischer | 3 | 5 | | | | | |
| | J Mertl | 7 | 0 | 6$^8$ | Q | M Fischer | 6 | 3 | 7$^7$ | | | | | | | | | |
| | M Kukushkin | 0 | 6 | 1 | 2 | J Hájek | 4 | 6 | 6$^4$ | | | | | | | | | |
| 2 | J Hájek | 6 | 4 | 6 | | | | | | | | | | | | | | |