# 2020 Marbella Tennis Open – Singles

Pablo Andújar was the defending champion but chose not to defend his title.
Pedro Martínez won the title after defeating Jaume Munar 7–6$^{(7–4)}$, 6–2 in the final.

## Seeds

* Federico Coria (first round)
* Pedro Martínez (champion)
* Gianluca Mager (second round)
* Roberto Carballés Baena (first round)
* Andrej Martin (first round)
* Jaume Munar (final)
* Pedro Sousa (first round)
* Jozef Kovalík (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 |
| Alt | Alexandre Müller | 4 | 4 | | | | |
| 6 | Jaume Munar | 6 | 6 | | | | |
| 6 | Jaume Munar | 6 | 6 | 6 | Jaume Munar | 6$^4$ | 2 |
| | | | | 2 | Pedro Martínez | 7$^7$ | 6 |
| | Carlos Taberner | 4 | 2 | 2 | Pedro Martínez | 7$^7$ | 6 |
| 2 | Pedro Martínez | 6 | 6 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | F Coria | 4 | 1 | | | | | | | | | | | | | | |
| Q | C Gimeno Valero | 6 | 6 | | Q | C Gimeno Valero | 6 | 6 | | | | | | | | | |
| | S Diez | 6 | 6 | | | S Diez | 3 | 3 | | | | | | | | | |
| WC | C Gómez-Herrera | 2 | 3 | | | | | | | Q | C Gimeno Valero | 4 | 0 | | | | |
| | B Zapata Miralles | 6 | 3 | | | | | | | Alt | A Müller | 6 | 6 | | | | |
| PR | T Robredo | 0 | 0$^r$ | | | B Zapata Miralles | 4 | 4 | | | | | | | | | |
| Alt | A Müller | 6 | 6 | | Alt | A Müller | 6 | 6 | | | | | | | | | |
| 7 | P Sousa | 3 | 4 | | | | | | | | | | | Alt | A Müller | 4 | 4 |
| 4 | R Carballés Baena | 6$^3$ | 2 | | | | | | | | | | | 6 | J Munar | 6 | 6 |
| Q | V Kopřiva | 7$^7$ | 6 | | Q | V Kopřiva | 3 | 7$^7$ | 6 | | | | | | | | |
| | F Gaio | 6 | 4 | 6 | | F Gaio | 6 | 6$^1$ | 4 | | | | | | | | |
| WC | N Kuhn | 3 | 6 | 4 | | | | | | Q | V Kopřiva | 1 | 5 | | | | |
| | C Alcaraz | 6 | 5 | 4 | | | | | | 6 | J Munar | 6 | 7 | | | | |
| | L Giustino | 3 | 7 | 6 | | L Giustino | 1 | 3 | | | | | | | | | |
| Q | R Bonadio | 6$^3$ | 7 | 3 | 6 | J Munar | 6 | 6 | | | | | | | | | |
| 6 | J Munar | 7$^7$ | 5 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | J Kovalík | 3 | 5 | | | | | | | | | | | | | | | |
| | J Clarke | 6 | 7 | | | J Clarke | 6$^2$ | 6 | 3 | | | | | | | | | |
| | C Taberner | 3 | 7 | 7$^7$ | | C Taberner | 7$^7$ | 1 | 6 | | | | | | | | | |
| | R Ramanathan | 6 | 5 | 6$^4$ | | | | | | | C Taberner | 5 | 6 | 6 | | | | |
| Q | A Pellegrino | 3 | 2 | | | | | | | | DE Galán | 7 | 4 | 4 | | | | |
| | DE Galán | 6 | 6 | | | DE Galán | 4 | 7 | 6 | | | | | | | | | |
| | A Giannessi | 6 | 1 | 2 | 3 | G Mager | 6 | 5 | 1 | | | | | | | | | |
| 3 | G Mager | 2 | 6 | 6 | | | | | | | | | | | | C Taberner | 4 | 2 |
| 5 | A Martin | 3 | 6 | 6$^7$ | | | | | | | | | | | 2 | P Martínez | 6 | 6 |
| | J Domingues | 6 | 3 | 7$^9$ | | J Domingues | 3 | 3 | | | | | | | | | | |
| | B Rola | 4 | 6 | 6 | | B Rola | 6 | 6 | | | | | | | | | | |
| | M Janvier | 6 | 2 | 4 | | | | | | | B Rola | 6$^4$ | 6 | 3 | | | | |
| WC | HVN Rune | 6 | 4 | 4 | | | | | | 2 | P Martínez | 7$^7$ | 4 | 6 | | | | |
| Alt | E Benchetrit | 1 | 6 | 6 | Alt | E Benchetrit | 5 | 3 | | | | | | | | | | |
| | M Vilella Martínez | 2 | 1 | | 2 | P Martínez | 7 | 6 | | | | | | | | | | |
| 2 | P Martínez | 6 | 6 | | | | | | | | | | | | | | | |