# 2019 Open Castilla y León – Men's singles

Ugo Humbert was the defending champion but chose not to defend his title.
Nicola Kuhn won the title after defeating Pavel Kotov 6–2, 7–6$^{(7–4)}$ in the final.

## Seeds

All seeds receive a bye into the second round.
* Blaž Rola (quarterfinals)
* Tallon Griekspoor (second round)
* Constant Lestienne (quarterfinals)
* Andrea Arnaboldi (second round)
* Nicola Kuhn (champion)
* Matteo Viola (third round)
* Luca Vanni (second round)
* Kenny de Schepper (second round)
* Roberto Ortega Olmedo (third round)
* Pavel Kotov (final)
* Oriol Roca Batalla (second round)
* Scott Griekspoor (second round)
* Andrea Vavassori (second round)
* Baptiste Crepatte (third round)
* Khumoyun Sultanov (second round)
* Aldin Šetkić (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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Blaž Rola | 7$^7$ | 6$^8$ | 4 | | | | | | | | |
| | Hugo Grenier | 6$^5$ | 7$^{10}$ | 6 | | | | | | | | |
| | Hugo Grenier | 6$^5$ | 7$^{10}$ | 6 | | Hugo Grenier | 2 | 5 | | | | |
| | | | | | 10 | Pavel Kotov | 6 | 7 | | | | |
| 3 | Constant Lestienne | 6 | 3 | 6$^5$ | 10 | Pavel Kotov | 6 | 7 | | | | |
| 10 | Pavel Kotov | 2 | 6 | 7$^7$ | | | | | | | | |
| 10 | Pavel Kotov | 2 | 6 | 7$^7$ | | | | | 10 | Pavel Kotov | 2 | 6$^4$ |
| | | | | | | | | | 5 | Nicola Kuhn | 6 | 7$^7$ |
| 5 | Nicola Kuhn | 7 | 6 | | | | | | | | | | 5 | Nicola Kuhn | 6 | 7$^7$ |
| | Altuğ Çelikbilek | 5 | 4 | | | | | | | | | |
| | Altuğ Çelikbilek | 5 | 4 | | 5 | Nicola Kuhn | 6 | 6 | | | | |
| | | | | | ITF | Markus Eriksson | 2 | 2 | | | | |
| ITF | Markus Eriksson | 6$^5$ | 6 | 6 | ITF | Markus Eriksson | 2 | 2 | | | | |
| | Antoine Escoffier | 7$^7$ | 2 | 3 | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | B Rola | 6 | 6 | | | | | | | | | | |
| ITF | K Kravchuk | 3 | 6 | 7$^7$ | ITF | K Kravchuk | 4 | 4 | | | | | | | | | | |
| WC | Í Cervantes | 6 | 1 | 6$^4$ | | | | | 1 | B Rola | 7 | 6 | | | | | | |
| | G Granollers | 6$^5$ | 4 | | | | | | 14 | B Crepatte | 5 | 1 | | | | | | |
| Q | F Gil | 7$^7$ | 6 | | Q | F Gil | 4 | 1 | | | | | | | | | | |
| | | | | | 14 | Baptiste Crepatte | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 1 | B Rola | 7$^7$ | 6$^8$ | 4 |
| | | | | | | | | | | | | | | | H Grenier | 6$^5$ | 7$^{10}$ | 6 |
| | | | | | 11 | O Roca Batalla | 4 | 2 | | | | | | | | | | |
| | R Ojeda Lara | 6$^1$ | 3 | | | A Basso | 6 | 6 | | | | | | | | | | |
| | A Basso | 7$^7$ | 6 | | | | | | | A Basso | 7$^7$ | 3 | 6$^5$ | | | | | |
| | H Grenier | 6 | 6 | | | | | | | H Grenier | 6$^3$ | 6 | 7$^7$ | | | | | |
| | Y He | 0 | 2 | | | H Grenier | 7$^7$ | 6 | | | | | | | | | | |
| | | | | | 7 | L Vanni | 6$^5$ | 3 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | C Lestienne | 6 | 6 | | | | | | | | | | |
| | A Bega | 3 | 6 | 0 | | A Artuñedo | 4 | 1 | | | | | | | | | | |
| | A Artuñedo | 6 | 3 | 6 | | | | | | 3 | C Lestienne | 7$^8$ | 6 | | | | | |
| ITF | B van de Zandschulp | 5 | 5 | | | | | | | | T Simon | 6$^6$ | 2 | | | | | |
| | Tobias Simon | 7 | 7 | | | T Simon | 7 | 6 | | | | | | | | | | |
| | | | | | 16 | A Šetkić | 5 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | 3 | C Lestienne | 6 | 3 | 6$^5$ |
| | | | | | | | | | | | | | | 10 | P Kotov | 2 | 6 | 7$^7$ |
| | | | | | 10 | P Kotov | 3 | 6 | 7 | | | | | | | | | |
| | A Rinderknech | 6$^3$ | 6$^2$ | | | M Martineau | 6 | 3 | 5 | | | | | | | | | |
| | M Martineau | 7$^7$ | 7$^7$ | | | | | | | 10 | P Kotov | 6 | 6 | | | | | |
| WC | N Álvarez Varona | 2 | 3 | | | | | | | 6 | M Viola | 1 | 3 | | | | | |
| ITF | F Meligeni Alves | 6 | 6 | | ITF | F Meligeni Alves | 2 | 1 | | | | | | | | | | |
| | | | | | 6 | M Viola | 6 | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | N Kuhn | 6 | 6 | | | | | | | | | | |
| PR | N Barrientos | 6 | 7 | | PR | N Barrientos | 4 | 3 | | | | | | | | | | |
| | D Added | 4 | 5 | | | | | | | 5 | N Kuhn | 7$^7$ | 6 | | | | | |
| WC | Miguel Damas | 7$^8$ | 6$^8$ | 2 | | | | | | | I Marchenko | 6$^4$ | 1 | | | | | |
| | I Marchenko | 6$^6$ | 7$^{10}$ | 6 | | I Marchenko | 7$^7$ | 6 | | | | | | | | | | |
| | | | | | 12 | S Griekspoor | 6$^2$ | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 5 | N Kuhn | 7 | 6 |
| | | | | | | | | | | | | | | | | A Çelikbilek | 5 | 4 |
| | | | | | 13 | A Vavassori | 7$^{10}$ | 2 | 4 | | | | | | | | | |
| | A Çelikbilek | 6 | 6 | | | A Çelikbilek | 6$^8$ | 6 | 6 | | | | | | | | | |
| WC | Digvijaypratap Singh | 4 | 4 | | | | | | | | A Çelikbilek | 6 | 4 | 6 | | | | |
| WC | Mario González Fernández | 6 | 2 | 4 | | | | | | | C Gómez-Herrera | 4 | 6 | 2 | | | | |
| | C Gómez-Herrera | 0 | 6 | 6 | | C Gómez-Herrera | 6 | 2 | 6 | | | | | | | | | |
| | | | | | 4 | A Arnaboldi | 2 | 6 | 4 | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 8 | K de Schepper | 4 | 7$^7$ | 3 | | | | | | | | | | |
| ITF | M Eriksson | 6 | 6 | | ITF | M Eriksson | 6 | 6$^2$ | 6 | | | | | | | | | | |
| | Tom Jomby | 3 | 1 | | | | | | | ITF | M Eriksson | 1 | 6 | 7 | | | | | |
| | A Dubrivnyy | 6$^3$ | 6 | 2 | | | | | | 9 | R Ortega Olmedo | 6 | 1 | 5 | | | | | |
| | J Ocleppo | 7$^7$ | 4 | 6 | | J Ocleppo | 7$^7$ | 3 | 4 | | | | | | | | | | |
| | | | | | 9 | R Ortega Olmedo | 6$^1$ | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | ITF | M Eriksson | 6$^5$ | 6 | 6 |
| | | | | | | | | | | | | | | | | A Escoffier | 7$^7$ | 2 | 3 |
| | | | | | 15 | K Sultanov | 6 | 2 | 6$^4$ | | | | | | | | | | |
| | A Escoffier | 6 | 6 | | | A Escoffier | 1 | 6 | 7$^7$ | | | | | | | | | | |
| Q | W Trusendi | 2 | 0 | | | | | | | | A Escoffier | 6 | 6 | | | | | | |
| ITF | O Luz | 6$^3$ | 6$^9$ | | | | | | | | C Boluda-Purkiss | 4 | 4 | | | | | | |
| | Carlos Boluda-Purkiss | 7$^7$ | 7$^{11}$ | | | C Boluda-Purkiss | 4 | 6 | 6 | | | | | | | | | | |
| | | | | | 2 | T Griekspoor | 6 | 0 | 3 | | | | | | | | | | |