# 2021 Antalya Open – Singles

Lorenzo Sonego was the defending champion, but chose not to participate. Alex de Minaur defeated Alexander Bublik in the final, 2–0, after Bublik retired with an ankle injury.

## Seeds

* Matteo Berrettini (quarterfinals)
* David Goffin (semifinals)
* Fabio Fognini (second round)
* Alex de Minaur (champion)
* Jan-Lennard Struff (quarterfinals)
* Nikoloz Basilashvili (quarterfinals)
* Miomir Kecmanović (first round)
* Alexander Bublik (final, retired)

## 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 |
| 8 | Alexander Bublik | 6 | 6$^4$ | 6 | | | |
| | Jérémy Chardy | 4 | 7$^7$ | 3 | | | |
| | Jérémy Chardy | 4 | 7$^7$ | 3 | 8 | Alexander Bublik | 0$^r$ |
| | | | | | 4 | Alex de Minaur | 2 |
| 4 | Alex de Minaur | 6 | 3 | 6 | 4 | Alex de Minaur | 2 |
| 2 | David Goffin | 4 | 6 | 2 | | | |

### Top half

| 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 |
| 1 | M Berrettini | 6 | 6 | | | | | | | | | | | | | | | |
| WC | E Kırkın | 0 | 4 | 1 | M Berrettini | 6 | 6 | | | | | | | | | | | |
| | L Đere | 1 | 2$^r$ | Q | D Kuzmanov | 2 | 3 | | | | | | | | | | | |
| Q | D Kuzmanov | 6 | 3 | | | | | | 1 | M Berrettini | 6$^6$ | 4 | | | | | | |
| | T Lamasine | 7$^8$ | 6 | | | | | | 8 | A Bublik | 7$^8$ | 6 | | | | | | |
| | E Gerasimov | 6$^6$ | 2 | | T Lamasine | 2 | 4 | | | | | | | | | | | |
| | S Caruso | 3 | 3 | 8 | A Bublik | 6 | 6 | | | | | | | | | | | |
| 8 | A Bublik | 6 | 6 | | | | | | | | | | | 8 | A Bublik | 6 | 6$^4$ | 6 |
| 3 | F Fognini | 6 | 7$^7$ | | | | | | | | | | | | J Chardy | 4 | 7$^7$ | 3 |
| Q | M Vrbenský | 4 | 6$^4$ | 3 | F Fognini | 6$^4$ | 7$^7$ | 6$^5$ | | | | | | | | | | |
| | J Chardy | 6 | 6 | | J Chardy | 7$^7$ | 6$^1$ | 7$^7$ | | | | | | | | | | |
| | R Albot | 3 | 4 | | | | | | | J Chardy | 4 | 6 | 7$^{10}$ | | | | | |
| Q | A Molčan | 5 | 4 | | | | | | 5 | J-L Struff | 6 | 2 | 6$^8$ | | | | | |
| | H Grenier | 7 | 6 | | H Grenier | | | | | | | | | | | | | |
| Q | P Kotov | 4 | 3 | 5 | J-L Struff | w/o | | | | | | | | | | | | |
| 5 | J-L Struff | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom 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 | Semifinals |
| 6 | N Basilashvili | 4 | 7 | 6 | | | | | | | | | | | | | |
| | A Arnaboldi | 6 | 5 | 1 | 6 | N Basilashvili | 7$^7$ | 6 | | | | | | | | | |
| WC | A Çelikbilek | 7$^9$ | 7 | | WC | A Çelikbilek | 6$^1$ | 4 | | | | | | | | | |
| | K Żuk | 6$^7$ | 5 | | | | | | 6 | N Basilashvili | 2 | 4 | | | | | |
| Q | A Andreev | 6 | 6 | | | | | | 4 | A de Minaur | 6 | 6 | | | | | |
| WC | M İlhan | 4 | 3 | | Q | A Andreev | 3 | 1 | | | | | | | | | |
| | M Jaziri | 2 | 1 | | 4 | A de Minaur | 6 | 6 | | | | | | | | | |
| 4 | A de Minaur | 6 | 6 | | | | | | | | | | 4 | A de Minaur | 6 | 3 | 6 |
| 7 | M Kecmanović | 6 | 4 | 0 | | | | | | | | | 2 | D Goffin | 4 | 6 | 2 |
| | S Travaglia | 1 | 6 | 6 | | S Travaglia | 7$^7$ | 6 | | | | | | | | | |
| | E Ruusuvuori | 6 | 7$^7$ | | | E Ruusuvuori | 6$^5$ | 3 | | | | | | | | | |
| | J Veselý | 3 | 6$^4$ | | | | | | | S Travaglia | 3 | 2 | | | | | |
| Q | M Bachinger | 6 | 3 | 1$^r$ | | | | | 2 | D Goffin | 6 | 6 | | | | | |
| | N Kuhn | 3 | 6 | 4 | | N Kuhn | 0 | 2 | | | | | | | | | |
| | P-H Herbert | 6 | 5 | 0 | 2 | D Goffin | 6 | 6 | | | | | | | | | |
| 2 | D Goffin | 3 | 7 | 6 | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Peđa Krstin (first round)
* Pavel Kotov (qualified)
* Blaž Kavčič (qualifying competition)
* Andrea Pellegrino (qualifying competition)
* Matthias Bachinger (qualified)
* Roberto Ortega Olmedo (first round)
* Lukáš Klein (first round)
* Dimitar Kuzmanov (qualified)
* Sasikumar Mukund (first round)
* Lucas Miedler (qualifying competition)
* Michael Vrbenský (qualified)
* Alex Molčan (qualified)

### Qualifiers

* Michael Vrbenský
* Pavel Kotov
* Alex Molčan
* Dimitar Kuzmanov
* Matthias Bachinger
* Adrian Andreev

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Peđa Krstin | 2 | 1 | | | | |
| WC | Mert Naci Türker | 6 | 6 | | | | |
| WC | Mert Naci Türker | 6 | 6 | WC | Mert Naci Türker | 4 | 3 |
| | | | | 11 | Michael Vrbenský | 6 | 6 |
| | Vitaliy Sachko | 5 | 2 | 11 | Michael Vrbenský | 6 | 6 |
| 11 | Michael Vrbenský | 7 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Pavel Kotov | 6 | 0 | | | | |
| WC | Umut Akkoyun | 2 | 0$^r$ | | | | |
| WC | Umut Akkoyun | 2 | 0$^r$ | 2 | Pavel Kotov | 6 | 6 |
| | | | | | Harri Heliövaara | 2 | 2 |
| | Harri Heliövaara | 6 | 7 | | Harri Heliövaara | 2 | 2 |
| 9 | Sasikumar Mukund | 4 | 5 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Blaž Kavčič | 6 | 6 | | | | | |
| WC | Togan Tokaç | 2 | 2 | | | | | |
| WC | Togan Tokaç | 2 | 2 | 3 | Blaž Kavčič | 6 | 4 | 5 |
| | | | | 12 | Alex Molčan | 1 | 6 | 7 |
| | Andrey Golubev | 2 | 5 | 12 | Alex Molčan | 1 | 6 | 7 |
| 12 | Alex Molčan | 6 | 7 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Andrea Pellegrino | 3 | 6 | 6 | | | | | |
| Alt | Cengiz Aksu | 6 | 2 | 0 | | | | | |
| Alt | Cengiz Aksu | 6 | 2 | 0 | 4 | Andrea Pellegrino | 6 | 6$^{11}$ | 5 |
| | | | | | 8 | Dimitar Kuzmanov | 4 | 7$^{13}$ | 7 |
| | Mirza Bašić | 3 | 1 | | 8 | Dimitar Kuzmanov | 4 | 7$^{13}$ | 7 |
| 8 | Dimitar Kuzmanov | 6 | 6 | | | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Matthias Bachinger | 6 | 7 | | | | | |
| | Vladyslav Orlov | 1 | 5 | | | | | |
| | Vladyslav Orlov | 1 | 5 | | 5 | Matthias Bachinger | 6 | 6 |
| | | | | | 10 | Lucas Miedler | 4 | 1 |
| | Alexandar Lazarov | 6 | 3 | 3 | 10 | Lucas Miedler | 4 | 1 |
| 10 | Lucas Miedler | 1 | 6 | 6 | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Roberto Ortega Olmedo | 5 | 1 | | | | |
| | Andrea Vavassori | 7 | 6 | | | | |
| | Andrea Vavassori | 7 | 6 | | Andrea Vavassori | 4 | 6$^5$ |
| | | | | WC | Adrian Andreev | 6 | 7$^7$ |
| WC | Adrian Andreev | 6 | 7$^9$ | WC | Adrian Andreev | 6 | 7$^7$ |
| 7 | Lukáš Klein | 3 | 6$^7$ | | | | |