# 2010 Rijeka Open – Singles

Paolo Lorenzi unsuccessfully defended his title, and was eliminated by Antonio Veić in the first round.
Blaž Kavčič won the tournament, defeating Rubén Ramírez Hidalgo 6–4, 3–6, 7–6(5) in the final.

## Seeds

* Rubén Ramírez Hidalgo (final)
* Carlos Berlocq (semifinals)
* Paolo Lorenzi (first round)
* Grega Žemlja (semifinals)
* Blaž Kavčič (champion)
* Daniel Köllerer (first round)
* Dieter Kindlmann (second round)
* Franko Škugor (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 |
| 1 | Rubén Ramírez Hidalgo | 6 | 6 | | | | | | |
| 4 | Grega Žemlja | 2 | 2 | | | | | | |
| 4 | Grega Žemlja | 2 | 2 | | 1 | Rubén Ramírez Hidalgo | 4 | 6 | 6$^5$ |
| | | | | | 5 | Blaž Kavčič | 6 | 3 | 7 |
| 5 | Blaž Kavčič | 4 | 6 | 7 | 5 | Blaž Kavčič | 6 | 3 | 7 |
| 2 | Carlos Berlocq | 6 | 2 | 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 Ramírez Hidalgo | 6 | 6 | | | | | | | | | | | | | | |
| | M Semjan | 2 | 2 | | 1 | R Ramírez Hidalgo | 7 | 6 | | | | | | | | | |
| | N Mektić | 7 | 7 | | | N Mektić | 6$^2$ | 4 | | | | | | | | | |
| Q | M Konečný | 6$^2$ | 5 | | | | | | 1 | R Ramírez Hidalgo | 6 | 2 | 6 | | | | |
| | A Martin | 6 | 6 | | | | | | | A Martin | 2 | 6 | 3 | | | | |
| WC | D Marcan | 3 | 2 | | | A Martin | 6 | 6 | | | | | | | | | |
| | F Prpic | 7 | 6 | | | F Prpic | 2 | 3 | | | | | | | | | |
| 6 | D Köllerer | 5 | 2 | | | | | | | | | | | 1 | R Ramírez Hidalgo | 6 | 6 |
| 4 | G Žemlja | 6 | 6 | | | | | | | | | | | 4 | G Žemlja | 2 | 2 |
| | S Galvani | 3 | 2 | | 4 | G Žemlja | 6 | 6 | | | | | | | | | |
| WC | T Muster | 4 | 6 | 3 | Q | A Šetkić | 3 | 1 | | | | | | | | | |
| Q | A Šetkić | 6 | 2 | 6 | | | | | 4 | G Žemlja | 6 | 6 | | | | | |
| | A Balázs | 6 | 6 | | | | | | | A Balázs | 1 | 1 | | | | | |
| WC | M Ružić | 1 | 1 | | | A Balázs | 6 | 7 | | | | | | | | | |
| WC | I Cerović | 4 | 4 | | 7 | D Kindlmann | 4 | 5 | | | | | | | | | |
| 7 | D Kindlmann | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | B Kavčič | 4 | 6 | 6 | | | | | | | | | | | | | |
| | D Junqueira | 6 | 3 | 2 | 5 | B Kavčič | 6 | 6 | | | | | | | | | |
| Q | M Djokovic | 6 | 3 | | | I Minář | 3 | 4 | | | | | | | | | |
| | I Minář | 7 | 6 | | | | | | 5 | B Kavčič | 6 | 6 | | | | | |
| | B Balleret | 2 | 1 | | | | | | | M Bachinger | 2 | 2 | | | | | |
| | M Bachinger | 6 | 6 | | | M Bachinger | 6 | 6 | | | | | | | | | |
| | A Veić | 6 | 6 | | | A Veić | 3 | 2 | | | | | | | | | |
| 3 | P Lorenzi | 4 | 4 | | | | | | | | | | 5 | B Kavčič | 4 | 6 | 7 |
| 8 | F Škugor | 6 | 7 | | | | | | | | | | 2 | C Berlocq | 6 | 2 | 6$^6$ |
| | S Vagnozzi | 4 | 5 | | 8 | F Škugor | 4 | 6$^3$ | | | | | | | | | |
| Q | M Bašić | 6 | 5 | 1 | | A Brizzi | 6 | 7 | | | | | | | | | |
| | A Brizzi | 3 | 7 | 6 | | | | | | A Brizzi | 1 | 4 | | | | | |
| | J Dasnières de Veigy | 6 | 6 | | | | | | 2 | C Berlocq | 6 | 6 | | | | | |
| | M Mečíř Jr. | 2 | 1 | | | J Dasnières de Veigy | 3 | 3 | | | | | | | | | |
| | M Viola | 3 | 6 | 3 | 2 | C Berlocq | 6 | 6 | | | | | | | | | |
| 2 | C Berlocq | 6 | 2 | 6 | | | | | | | | | | | | | |