# 2015 Open Castilla y León – Singles

Adrian Mannarino was the defending champion, but did not participate this year.
Evgeny Donskoy won the tournament, defeating Marco Chiudinelli in the final, 7–6$^{(7–2)}$, 6–3.

## Seeds

* Marcel Granollers (semifinals)
* Dustin Brown (second round)
* Matthias Bachinger (first round)
* Adrián Menéndez-Maceiras (second round)
* Mirza Bašić (quarterfinals)
* Peter Gojowczyk (second round)
* Vincent Millot (first round)
* Alexander Kudryavtsev (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 |
| 1/WC | Marcel Granollers | 2 | 6$^3$ | | | | | |
| | Evgeny Donskoy | 6 | 7$^7$ | | | | | |
| | Evgeny Donskoy | 6 | 7$^7$ | | | Evgeny Donskoy | 7$^7$ | 6 |
| | | | | | PR | Marco Chiudinelli | 6$^2$ | 3 |
| PR | Marco Chiudinelli | 6$^7$ | 6 | 6 | PR | Marco Chiudinelli | 6$^2$ | 3 |
| | Connor Smith | 7$^9$ | 2 | 4 | | | | |

### Top 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 |
| 1/WC | M Granollers | 6 | 6 | | | | | | | | | | | | | |
| | C Zampieri | 1 | 1 | | 1/WC | M Granollers | 7 | 6 | | | | | | | | |
| Q | Georgi Rumenov | 4 | 6 | 6 | Q | G Rumenov | 5 | 2 | | | | | | | | |
| WC | Y-s Chung | 6 | 1 | 3 | | | | | 1/WC | M Granollers | 6 | 6 | | | | |
| | Y Mertens | 6 | 6 | | | | | | | Y Mertens | 2 | 4 | | | | |
| Q | Sébastien Boltz | 4 | 2 | | | Y Mertens | 6 | 6 | | | | | | | | |
| | M Dubarenco | 2 | 1$^r$ | | 8 | A Kudryavtsev | 2 | 2 | | | | | | | | |
| 8 | A Kudryavtsev | 6 | 0 | | | | | | | | | | 1/WC | M Granollers | 2 | 6$^3$ |
| 4 | A Menéndez-Maceiras | 4 | 6 | 6 | | | | | | | | | | E Donskoy | 6 | 7$^7$ |
| | Q Halys | 6 | 3 | 1 | 4 | A Menéndez-Maceiras | 2 | 4 | | | | | | | | |
| WC | Jorge Ruano | 4 | 2 | | | E Donskoy | 6 | 6 | | | | | | | | |
| | E Donskoy | 6 | 6 | | | | | | | E Donskoy | 6 | 6 | | | | |
| | Erik Crepaldi [es] | 1 | 1 | | | | | | | K Kravchuk | 4 | 4 | | | | |
| | K Kravchuk | 6 | 6 | | | K Kravchuk | 6 | 6 | | | | | | | | |
| LL | R Ortega-Olmedo | 4 | 2 | | 6 | P Gojowczyk | 4 | 2 | | | | | | | | |
| 6 | P Gojowczyk | 6 | 6 | | | | | | | | | | | | | |

### Bottom half

| 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 | Semifinals |
| 7 | V Millot | 3 | 3 | | | | | | | | | | | | | | |
| | D Molchanov | 6 | 6 | | D Molchanov | 2 | 6$^2$ | | | | | | | | | | |
| PR | M Chiudinelli | 6 | 6 | PR | M Chiudinelli | 6 | 7$^7$ | | | | | | | | | | |
| WC | Francisco Blanco Paris | 2 | 0 | | | | | PR | M Chiudinelli | 6 | 5 | 7 | | | | | |
| Q | E Gerasimov | 6 | 7 | | | | | Q | E Gerasimov | 3 | 7 | 5 | | | | | |
| | H Moriya | 4 | 5 | Q | E Gerasimov | 7$^7$ | 6 | | | | | | | | | | |
| | D Guez | 6 | 6 | | D Guez | 6$^4$ | 4 | | | | | | | | | | |
| 3 | M Bachinger | 4 | 3 | | | | | | | | | | PR | M Chiudinelli | 6$^7$ | 6 | 6 |
| 5 | M Bašić | 6 | 6 | | | | | | | | | | | C Smith | 7$^9$ | 2 | 4 |
| | D Wu | 2 | 2 | 5 | M Bašić | 6 | 6 | | | | | | | | | | |
| Q | N Mektić | 6 | 7 | Q | N Mektić | 4 | 4 | | | | | | | | | | |
| LL | R Ghedin | 4 | 5 | | | | | 5 | M Bašić | 6 | 2 | 5 | | | | | |
| | Connor Smith | 6 | 6 | | | | | | C Smith | 1 | 6 | 7 | | | | | |
| | Henrique Cunha | 2 | 2 | | C Smith | 6 | 6 | | | | | | | | | | |
| | FF Silva | 3 | 6$^5$ | 2 | D Brown | 4 | 2 | | | | | | | | | | |
| 2 | D Brown | 6 | 7$^7$ | | | | | | | | | | | | | | |