# 2019 Estoril Open – Singles

João Sousa was the defending champion, but lost in the second round to David Goffin.
Stefanos Tsitsipas won the title, defeating Pablo Cuevas in the final, 6–3, 7–6$^{(7–4)}$.

## Seeds

The top four seeds received a bye into the second round.
* Stefanos Tsitsipas (champion)
* Fabio Fognini (withdrew)
* Gaël Monfils (quarterfinals)
* David Goffin (semifinals)
* Dušan Lajović (first round)
* Alex de Minaur (first round)
* Pablo Carreño Busta (first round)
* Frances Tiafoe (quarterfinals)

## 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 | Stefanos Tsitsipas | 3 | 6 | 6 | | | | |
| 4/WC | David Goffin | 6 | 4 | 4 | | | | |
| 4/WC | David Goffin | 6 | 4 | 4 | 1 | Stefanos Tsitsipas | 6 | 7$^7$ |
| | | | | | LL | Pablo Cuevas | 3 | 6$^4$ |
| Q | Alejandro Davidovich Fokina | 6 | 2 | 2 | LL | Pablo Cuevas | 3 | 6$^4$ |
| LL | Pablo Cuevas | 3 | 6 | 6 | | | | |

### Top half

| First round | 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 |
| | | | | | 1 | S Tsitsipas | 6 | 6 | | | | | | | | | | |
| | G Andreozzi | 6 | 6 | | | G Andreozzi | 3 | 4 | | | | | | | | | | |
| | H Dellien | 3 | 3 | | | | | | 1 | S Tsitsipas | 7$^7$ | 6 | | | | | | |
| | B Tomic | 3 | 0 | | | | | | Q | J Domingues | 6$^3$ | 4 | | | | | | |
| | J Millman | 6 | 6 | | | J Millman | 3 | 1$^r$ | | | | | | | | | | |
| Q | J Domingues | 6 | 2 | 6 | Q | J Domingues | 6 | 2 | | | | | | | | | | |
| 6 | A de Minaur | 2 | 6 | 2 | | | | | | | | | | 1 | S Tsitsipas | 3 | 6 | 6 |
| | | | | | | | | | | | | | | 4/WC | D Goffin | 6 | 4 | 4 |
| | | | | | 4/WC | D Goffin | 6 | 6 | | | | | | | | | | |
| | J Sousa | 6 | 2 | 6 | | J Sousa | 3 | 2 | | | | | | | | | | |
| Q | A Popyrin | 4 | 6 | 2 | | | | | 4/WC | D Goffin | 4 | 7$^7$ | 6 | | | | | |
| | M Jaziri | 6 | 3 | 6 | | | | | | M Jaziri | 6 | 6$^4$ | 2 | | | | | |
| | N Jarry | 3 | 6 | 4 | | M Jaziri | 7$^7$ | 6 | | | | | | | | | | |
| | L Mayer | 7$^7$ | 6 | | | L Mayer | 6$^2$ | 1 | | | | | | | | | | |
| 5 | D Lajović | 6$^3$ | 4 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 7/WC | P Carreño Busta | 7 | 1 | 2 | | | | | | | | | | | | | | | |
| | J Chardy | 5 | 6 | 6 | | J Chardy | 1 | 2 | | | | | | | | | | | |
| | T Fritz | 6$^3$ | 4 | | Q | A Davidovich Fokina | 6 | 6 | | | | | | | | | | | |
| Q | A Davidovich Fokina | 7$^7$ | 6 | | | | | | | Q | A Davidovich Fokina | 6$^2$ | 7 | 6 | | | | | |
| | R Opelka | 7$^7$ | 6 | | | | | | | 3 | G Monfils | 7$^7$ | 5 | 4 | | | | | |
| WC | P Sousa | 6$^2$ | 4 | | | R Opelka | 6 | 3 | 0 | | | | | | | | | | |
| | | | | | 3 | G Monfils | 3 | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | Q | A Davidovich Fokina | 6 | 2 | 2 |
| 8 | F Tiafoe | 6 | 7 | | | | | | | | | | | | LL | P Cuevas | 3 | 6 | 6 |
| | M Kukushkin | 3 | 5 | | 8 | F Tiafoe | 2 | 6 | 7$^7$ | | | | | | | | | | |
| | Y Nishioka | 6 | 6 | | | Y Nishioka | 6 | 3 | 6$^5$ | | | | | | | | | | |
| | M McDonald | 2 | 4 | | | | | | | 8 | F Tiafoe | 0 | 7$^7$ | 2 | | | | | |
| Q | S Caruso | 2 | 2 | | | | | | | LL | P Cuevas | 6 | 6$^5$ | 6 | | | | | |
| LL | P Cuevas | 6 | 6 | | LL | P Cuevas | 6 | 7 | | | | | | | | | | | |
| | | | | | LL | F Baldi | 2 | 5 | | | | | | | | | | | |

## Qualifying
### Seeds

* Pablo Cuevas (qualifying competition, lucky loser)
* Dan Evans (qualifying competition)
* Elias Ymer (first round)
* Alexei Popyrin (qualified)
* Jozef Kovalík (first round)
* Bjorn Fratangelo (first round)
* Egor Gerasimov (first round)
* Pedro Martínez (first round)

### Qualifiers

* Salvatore Caruso
* Alejandro Davidovich Fokina
* João Domingues
* Alexei Popyrin

### Lucky losers

* Pablo Cuevas
* Filippo Baldi

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Pablo Cuevas | 6 | 7$^7$ | | | | | | |
| | Daniel Brands | 1 | 6$^4$ | | | | | | |
| | Daniel Brands | 1 | 6$^4$ | | 1 | Pablo Cuevas | 4 | 7 | 4 |
| | | | | | | Salvatore Caruso | 6 | 5 | 6 |
| | Salvatore Caruso | 6 | 5 | 7$^8$ | | Salvatore Caruso | 6 | 5 | 6 |
| 8 | Pedro Martínez | 3 | 7 | 6$^6$ | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Dan Evans | 6 | 7 | | | | | |
| | Lorenzo Giustino | 3 | 5 | | | | | |
| | Lorenzo Giustino | 3 | 5 | 2 | Dan Evans | 6 | 1 | 4 |
| | | | | | Alejandro Davidovich Fokina | 3 | 6 | 6 |
| | Alejandro Davidovich Fokina | 6 | 6 | | Alejandro Davidovich Fokina | 3 | 6 | 6 |
| 6 | Bjorn Fratangelo | 2 | 4 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Elias Ymer | 3 | 6$^3$ | | | | | |
| WC | João Domingues | 6 | 7$^7$ | | | | | |
| WC | João Domingues | 6 | 7$^7$ | | WC | João Domingues | 6 | 6 |
| | | | | | | Filippo Baldi | 2 | 4 |
| | Filippo Baldi | 4 | 6 | 6 | | Filippo Baldi | 2 | 4 |
| 5 | Jozef Kovalík | 6 | 3 | 2 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Alexei Popyrin | 7 | 7$^7$ | | | | | |
| WC | Gastão Elias | 5 | 6$^5$ | | | | | |
| WC | Gastão Elias | 5 | 6$^5$ | 4 | Alexei Popyrin | 2 | 6 | 6 |
| | | | | | Simone Bolelli | 6 | 3 | 4 |
| | Simone Bolelli | 6 | 7$^7$ | | Simone Bolelli | 6 | 3 | 4 |
| 7 | Egor Gerasimov | 2 | 6$^0$ | | | | | |