# 2010 Concurso Internacional de Tenis – San Sebastián – Singles

Thiemo de Bakker was the defending champion but chose to compete in Cincinnati Masters instead. Albert Ramos-Viñolas won in the final defeating Benoît Paire 6–4, 6–2.

## Seeds

* Pere Riba (first round)
* Rubén Ramírez Hidalgo (semifinals)
* Pablo Andújar (first round)
* Julian Reister (semifinals)
* Santiago Ventura (second round)
* Yuri Schukin (first round, retired)
* Albert Ramos-Viñolas (champion)
* Denis Gremelmayr (second round, retired)

## 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 |
| | Benoît Paire | 7 | 3 | 7 | | | | |
| 4 | Julian Reister | 6$^6$ | 6 | 5 | | | | |
| 4 | Julian Reister | 6$^6$ | 6 | 5 | | Benoît Paire | 4 | 2 |
| | | | | | 7 | Albert Ramos-Viñolas | 6 | 6 |
| 7 | Albert Ramos-Viñolas | 6 | 4 | 6 | 7 | Albert Ramos-Viñolas | 6 | 6 |
| 2 | Rubén Ramírez Hidalgo | 3 | 6 | 3 | | | | |

### 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 | Semifinals |
| 1 | P Riba | 4 | 1 | | | | | | | | | | | | | | | | |
| | J Aguilar | 6 | 6 | | | J Aguilar | 4 | 7 | 6 | | | | | | | | | | |
| | G Trujillo-Soler | 7 | 6 | | | G Trujillo-Soler | 6 | 6$^3$ | 3 | | | | | | | | | | |
| | I Navarro | 5 | 3 | | | | | | | | J Aguilar | 7 | 1 | 3 | | | | | |
| | L Rochette | 4 | 0 | | | | | | | | B Paire | 6$^5$ | 6 | 6 | | | | | |
| | B Paire | 6 | 6 | | | B Paire | 6 | 5 | 7 | | | | | | | | | | |
| | I Cervantes-Huegun | 4 | 6 | 1 | | I Cervantes-Huegun | 2 | 7 | 5 | | | | | | | | | | |
| 6 | Y Schukin | 6 | 4 | 0$^r$ | | | | | | | | | | | | B Paire | 7 | 3 | 7 |
| 4 | J Reister | 6 | 6 | | | | | | | | | | | | 4 | J Reister | 6$^6$ | 6 | 5 |
| | P Clar-Rosselló | 4 | 3 | | 4 | J Reister | 6 | 6 | | | | | | | | | | | |
| Q | P Sousa | 3 | 0 | | WC | J Lizariturry | 2 | 4 | | | | | | | | | | | |
| WC | J Lizariturry | 6 | 6 | | | | | | | 4 | J Reister | 4 | 6 | 7 | | | | | |
| Q | G Naso | 7 | 6 | | | | | | | Q | G Naso | 6 | 3 | 6$^2$ | | | | | |
| | S Gutiérrez-Ferrol | 5 | 1 | | Q | G Naso | 4 | 6 | 6 | | | | | | | | | | |
| Q | M Fornell-Mestres | 2 | 4 | | 5 | S Ventura | 6 | 2 | 2 | | | | | | | | | | |
| 5 | S Ventura | 6 | 6 | | | | | | | | | | | | | | | | |

### 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 | A Ramos-Viñolas | 5 | 6 | 6 | | | | | | | | | | | | | | |
| WC | J Martí | 7 | 1 | 2 | 7 | A Ramos-Viñolas | 6 | 6 | | | | | | | | | | |
| Q | B Dupuy | 6 | 4 | 6$^6$ | | R El Amrani | 3 | 2 | | | | | | | | | | |
| | R El Amrani | 3 | 6 | 7 | | | | | | 7 | A Ramos-Viñolas | 6 | 6 | | | | | |
| | T Schoorel | 7 | 6 | | | | | | | | T Schoorel | 3 | 2 | | | | | |
| | O Patience | 6$^7$ | 3 | | | T Schoorel | 7 | 3 | 6 | | | | | | | | | |
| | J Dasnières de Veigy | 6 | 6 | | | J Dasnières de Veigy | 5 | 6 | 2 | | | | | | | | | |
| 3 | P Andújar | 2 | 3 | | | | | | | | | | | 7 | A Ramos-Viñolas | 6 | 4 | 6 |
| 8 | D Gremelmayr | 6 | 6 | | | | | | | | | | | 2 | R Ramírez Hidalgo | 3 | 6 | 3 |
| WC | A Vivanco-Guzmán | 0 | 2 | | 8 | D Gremelmayr | 0 | r | | | | | | | | | | |
| WC | P Carreño-Busta | 2 | 4 | | | J Huta Galung | 3 | | | | | | | | | | | |
| | J Huta Galung | 6 | 6 | | | | | | | | J Huta Galung | 2 | 4 | | | | | |
| | M Alund | 6$^5$ | 7 | 6 | | | | | | 2 | R Ramírez Hidalgo | 6 | 6 | | | | | |
| | D Marrero | 7 | 6$^4$ | 4 | | M Alund | 4 | 2 | | | | | | | | | | |
| | J-M Aranguren | 7 | 5 | 3 | 2 | R Ramírez Hidalgo | 6 | 6 | | | | | | | | | | |
| 2 | R Ramírez Hidalgo | 6$^1$ | 7 | 6 | | | | | | | | | | | | | | |