# 2010 Open Castilla y León – Singles

Feliciano López won the previous year's edition, but decided not to participate in 2010. Daniel Gimeno Traver defeated Adrian Mannarino 6–4, 7–6(2) in the final.

## Seeds

* Daniel Gimeno Traver (champion)
* Marcel Granollers (first round)
* Rubén Ramírez Hidalgo (first round)
* Stéphane Bohli (second round)
* Thiago Alves (second round)
* Marc Gicquel (first round)
* Iván Navarro (second round)
* Ivan Dodig (first 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 | Daniel Gimeno Traver | 7 | 6 | | | | |
| | Vincent Millot | 5 | 4 | | | | |
| | Vincent Millot | 5 | 4 | 1 | Daniel Gimeno Traver | 6 | 7 |
| | | | | PR | Adrian Mannarino | 4 | 6$^2$ |
| PR | Adrian Mannarino | 6 | 6 | PR | Adrian Mannarino | 4 | 6$^2$ |
| | Jesse Huta Galung | 3 | 4 | | | | |

### 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 | D Gimeno Traver | 6$^{11}$ | 6 | 7 | | | | | | | | | | | | | | |
| | G Alcaide | 7 | 3 | 6$^4$ | 1 | D Gimeno Traver | 7 | 7 | | | | | | | | | | |
| | P Clar-Rosselló | 6$^4$ | 4 | | | K Kravchuk | 6$^4$ | 6$^5$ | | | | | | | | | | |
| | K Kravchuk | 7 | 6 | | | | | | | 1 | D Gimeno Traver | 7 | 6 | | | | | |
| Q | C Eaton | 6 | 6$^1$ | 2 | | | | | | | Y Mertens | 6$^5$ | 3 | | | | | |
| | Y Mertens | 4 | 7 | 6 | | Y Mertens | 7 | 3 | 6 | | | | | | | | | |
| | N Desein | 2 | 6$^7$ | | 7 | I Navarro | 6$^3$ | 6 | 3 | | | | | | | | | |
| 7 | I Navarro | 6 | 7 | | | | | | | | | | | | 1 | D Gimeno Traver | 7 | 6 |
| 4 | S Bohli | 6 | 6 | | | | | | | | | | | | | V Millot | 5 | 4 |
| WC | S Gutiérrez-Ferrol | 1 | 2 | | 4 | S Bohli | 4 | 6 | 3 | | | | | | | | | |
| WC | G Granollers Pujol | 3 | 6 | 2 | | V Millot | 6 | 4 | 6 | | | | | | | | | |
| | V Millot | 6 | 3 | 6 | | | | | | | V Millot | 6 | 6$^7$ | 6 | | | | |
| Q | T Cakl | 2 | 6 | 6$^0$ | | | | | | | N Mahut | 4 | 7 | 0 | | | | |
| ALT | D Marrero | 6 | 1 | 7 | ALT | D Marrero | 6$^4$ | 3 | | | | | | | | | | |
| | N Mahut | 6 | 6 | | | N Mahut | 7 | 6 | | | | | | | | | | |
| 6 | M Gicquel | 3 | 2 | | | | | | | | | | | | | | | |

### 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 | I Dodig | 2 | 4 | | | | | | | | | | | | | | | |
| PR | A Mannarino | 6 | 6 | | PR | A Mannarino | 7 | 3 | 4 | | | | | | | | | |
| | L Sorensen | 7 | 6$^6$ | 6 | | L Sorensen | 5 | 6 | 3$^r$ | | | | | | | | | |
| Q | A González-Jiménez | 6$^2$ | 7 | 2 | | | | | | PR | A Mannarino | 6 | 4 | 6 | | | | |
| | A Menéndez Maceiras | 6 | 3 | 6 | | | | | | | A Kudryavtsev | 1 | 6 | 2 | | | | |
| WC | J Martí | 2 | 6 | 3 | | A Menéndez Maceiras | 3 | 5 | | | | | | | | | | |
| | A Kudryavtsev | 7 | 7 | | | A Kudryavtsev | 6 | 7 | | | | | | | | | | |
| 3 | R Ramírez Hidalgo | 6$^3$ | 5 | | | | | | | | | | | | PR | A Mannarino | 6 | 6 |
| 5 | T Alves | 6 | 7 | | | | | | | | | | | | | J Huta Galung | 3 | 4 |
| WC | J Hernando Ruano | 3 | 6$^3$ | | 5 | T Alves | 6 | 3 | 4 | | | | | | | | | |
| Q | M Ryderstedt | 4 | 1 | | | R Bautista Agut | 4 | 6 | 6 | | | | | | | | | |
| | R Bautista Agut | 6 | 6 | | | | | | | | R Bautista Agut | 5 | 6 | 3 | | | | |
| | D King-Turner | 4 | 3 | | | | | | | | J Huta Galung | 7 | 3 | 6 | | | | |
| | D Muñoz de la Nava | 6 | 6 | | | D Muñoz de la Nava | 5 | 6$^3$ | | | | | | | | | | |
| | J Huta Galung | 6 | 7 | | | J Huta Galung | 7 | 7 | | | | | | | | | | |
| 2 | M Granollers | 4 | 6$^5$ | | | | | | | | | | | | | | | |