2016 Open Castilla y León – Men's singles
# 2016 Open Castilla y León – Men's singles

Evgeny Donskoy was the defending champion but chose not to defend his title.

Luca Vanni won the title after defeating Illya Marchenko 6–4, 3–6, 6–3 in the final.

## Seeds

* Nicolás Almagro (quarterfinals)
* Lukáš Rosol (second round)
* Illya Marchenko (final)
* Marco Chiudinelli (first round)
* Mirza Bašić (semifinals)
* Jerzy Janowicz (first round)
* Kenny de Schepper (quarterfinals)
* Márton Fucsovics (semifinals)

## 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 | Final |
| - | - | - | - | - | - | - | - | - |
| 5 | Mirza Bašić | 4 | 3 | | | | | |
| | Luca Vanni | 6 | 6 | | | | | |
| | Luca Vanni | 6 | 6 | | Luca Vanni | 6 | 3 | 6 |
| | | | | 3 | Illya Marchenko | 4 | 6 | 3 |
| 3 | Illya Marchenko | 6 | 6 | 3 | Illya Marchenko | 4 | 6 | 3 |
| 8 | Márton Fucsovics | 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/WC | N Almagro | 6 | 6 | | | | | | | | | | | | | | | |
| | M Janvier | 3 | 2 | | 1/WC | N Almagro | 7 | 6 | | | | | | | | | | |
| WC | Ricardo Villacorta-Alonso | 6 | 6 | | WC | R Villacorta-Alonso | 5 | 4 | | | | | | | | | | |
| | N Mektić | 4 | 4 | | | | | | | 1/WC | N Almagro | 7 | $6^5$ | $6^4$ | | | | |
| | Michal Konečný | 5 | 6 | 7 | | | | | | 5 | M Bašić | 5 | $7^7$ | $7^7$ | | | | |
| | D Guez | 7 | 2 | 5 | | M Konečný | 4 | 3 | | | | | | | | | | |
| Q | D Cox | 2 | 2 | | 5 | M Bašić | 6 | 6 | | | | | | | | | | |
| 5 | M Bašić | 6 | 6 | | | | | | | | | | | | 5 | M Bašić | 4 | 3 |
| 4 | M Chiudinelli | 6 | 4 | 3 | | | | | | | | | | | | L Vanni | 6 | 6 |
| | A Santillan | 4 | 6 | 6 | | A Santillan | 6 | 6 | | | | | | | | | | |
| WC | Jorge Hernando Ruano | 6 | 6 | | WC | J Hernando Ruano | 4 | 0 | | | | | | | | | | |
| | M Safwat | 2 | 3 | | | | | | | | A Santillan | $6^5$ | 3 | | | | | |
| | Y Mertens | 6 | 6 | | | | | | | | L Vanni | $7^7$ | 6 | | | | | |
| | Pablo Vivero González | 4 | 2 | | | Y Mertens | $7^7$ | 0 | 3 | | | | | | | | | |
| | L Vanni | 2 | $7^7$ | 7 | | L Vanni | $6^4$ | 6 | 6 | | | | | | | | | |
| 6 | J Janowicz | 6 | $6^3$ | 5 | | | | | | | | | | | | | | |

### 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 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 7 | K de Schepper | 6 | 6 | | | | | | | | | | | | | | | |
| PR | R Boutillier | 3 | 3 | | 7 | K de Schepper | 6 | 6 | | | | | | | | | | |
| | F Horanský | 1 | 3 | | | R Ortega Olmedo | 3 | 3 | | | | | | | | | | |
| | R Ortega Olmedo | 6 | 6 | | | | | | | 7 | K de Schepper | 5 | 4 | | | | | |
| | R Bemelmans | 6 | 6 | | | | | | | 3 | I Marchenko | 7 | 6 | | | | | |
| Q | Jaume Pla Malfeito | 0 | 3 | | | R Bemelmans | 3 | 4 | | | | | | | | | | |
| Q | A De Minaur | 4 | 4 | | 3 | I Marchenko | 6 | 6 | | | | | | | | | | |
| 3 | I Marchenko | 6 | 6 | | | | | | | | | | | | 3 | I Marchenko | 6 | 6 |
| 8 | M Fucsovics | $7^7$ | 6 | | | | | | | | | | | | 8 | M Fucsovics | 3 | 4 |
| | A Sidorenko | $6^1$ | 2 | | 8 | M Fucsovics | 6 | 6 | | | | | | | | | | |
| | A Šetkić | 6 | $7^7$ | | | A Šetkić | 2 | 2 | | | | | | | | | | |
| PR | A Olivetti | 3 | $6^4$ | | | | | | | 8 | M Fucsovics | 6 | $6^7$ | 6 | | | | |
| | A Menéndez-Maceiras | $6^3$ | 6 | 6 | | | | | | | A Menéndez-Maceiras | 4 | $7^9$ | 4 | | | | |
| | E Struvay | $7^7$ | 2 | 4 | | A Menéndez-Maceiras | 6 | $6^3$ | 6 | | | | | | | | | |
| Q | V Durasovic | 4 | 4 | | 2 | L Rosol | 3 | $7^7$ | 4 | | | | | | | | | |
| 2 | L Rosol | 6 | 6 | | | | | | | | | | | | | | | |
