# 2010 Zagreb Open – Singles

Marcos Daniel was the defending champion, but he lost against Yuri Schukin in the semifinals. Schukin won in the final 6–3, 7–5, against Santiago Ventura.

## Seeds

* Marcos Daniel (semifinals)
* Nicolás Massú (quarterfinals)
* Blaž Kavčič (quarterfinals)
* Daniel Köllerer (first round, retired)
* Somdev Devvarman (first round)
* Rubén Ramírez Hidalgo (quarterfinals)
* Santiago Ventura (final)
* Grega Žemlja (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 | Final | Final | Final | Final |
| 1 | Marcos Daniel | 1 | 3 | | | | |
| | Yuri Schukin | 6 | 6 | | | | |
| | Yuri Schukin | 6 | 6 | | Yuri Schukin | 6 | 7 |
| | | | | 7 | Santiago Ventura | 3 | 5 |
| | Federico del Bonis | 4 | 1 | 7 | Santiago Ventura | 3 | 5 |
| 7 | Santiago Ventura | 6 | 6 | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | M Daniel | 7 | 3 | 6 | | | | | | | | | | | | | | |
| WC | N Mektić | 6$^5$ | 6 | 4 | 1 | M Daniel | 6 | 6 | | | | | | | | | | |
| Q | A Sančić | 6$^4$ | 6$^8$ | | | P Polansky | 1 | 4 | | | | | | | | | | |
| | P Polansky | 7 | 7 | | | | | | | 1 | M Daniel | 3 | 6 | 7 | | | | |
| | L Rosol | 6 | 6 | | | | | | | 6 | R Ramírez Hidalgo | 6 | 3 | 5 | | | | |
| Q | A Balázs | 3 | 2 | | | L Rosol | 6$^4$ | 7 | 3 | | | | | | | | | |
| | P Amritraj | 3 | 1 | | 6 | R Ramírez Hidalgo | 7 | 6$^2$ | 6 | | | | | | | | | |
| 6 | R Ramírez Hidalgo | 6 | 6 | | | | | | | | | | | | 1 | M Daniel | 1 | 3 |
| 3 | B Kavčič | 6 | 6 | | | | | | | | | | | | | Y Schukin | 6 | 6 |
| ALT | A Begemann | 2 | 1 | | 3 | B Kavčič | 6 | 6 | | | | | | | | | | |
| | M Ebden | 1 | 7 | 6 | | M Ebden | 3 | 2 | | | | | | | | | | |
| SE | I Minář | 6 | 6$^3$ | 4 | | | | | | 3 | B Kavčič | 7 | 3 | 5 | | | | |
| | R Hocevar | 3 | 6 | 0 | | | | | | | Y Schukin | 6$^3$ | 6 | 7 | | | | |
| Q | A Kuznetsov | 6 | 4 | 6 | Q | A Kuznetsov | 4 | 1 | | | | | | | | | | |
| | Y Schukin | 7 | 1 | 6 | | Y Schukin | 6 | 6 | | | | | | | | | | |
| 5 | S Devvarman | 6$^3$ | 6 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | G Žemlja | 6 | 6 | | | | | | | | | | | | | | | |
| | J Dasnières de Veigy | 2 | 1 | | 8 | G Žemlja | 7 | 2 | 6$^1$ | | | | | | | | | |
| WC | G Gaudio | 6 | 0 | 6 | WC | G Gaudio | 6$^4$ | 6 | 7 | | | | | | | | | |
| Q | I Belyaev | 4 | 6 | 4 | | | | | | WC | G Gaudio | 2 | 3 | | | | | |
| | M Yani | 6 | 6 | | | | | | | | F del Bonis | 6 | 6 | | | | | |
| WC | B Tomic | 3 | 4 | | | M Yani | 3 | 3 | | | | | | | | | | |
| | F del Bonis | 4 | | | | F del Bonis | 6 | 6 | | | | | | | | | | |
| 4 | D Köllerer | 1 | r | | | | | | | | | | | | | F del Bonis | 4 | 1 |
| 7 | S Ventura | 6 | 6 | | | | | | | | | | | | 7 | S Ventura | 6 | 6 |
| | R Karanušić | 4 | 3 | | 7 | S Ventura | 7 | 6 | | | | | | | | | | |
| | S Decoud | 6$^4$ | 2 | | | I Dodig | 6$^3$ | 3 | | | | | | | | | | |
| | I Dodig | 7 | 6 | | | | | | | 7 | S Ventura | 3 | 6 | 6 | | | | |
| | A Haider-Maurer | 6 | 0 | 6 | | | | | | 2 | N Massú | 6 | 4 | 3 | | | | |
| | N Lindahl | 1 | 6 | 2 | | A Haider-Maurer | 5 | 4 | | | | | | | | | | |
| WC | A Veić | 4 | 2 | | 2 | N Massú | 7 | 6 | | | | | | | | | | |
| 2 | N Massú | 6 | 6 | | | | | | | | | | | | | | | |