# 2021 Qatar Total Open – Singles

Petra Kvitová defeated Garbiñe Muguruza in the final, 6–2, 6–1 to win the singles tennis title at the 2021 WTA Qatar Open. The final was a rematch of the 2018 final. It was Kvitová's second title at the WTA Qatar Open. Kvitová dropped just one set the entire tournament, to Anett Kontaveit in the quarterfinals.
Aryna Sabalenka was the defending champion, but lost in the second round to Muguruza.

## Seeds

The top four seeds received a bye into the second round.
* Elina Svitolina (quarterfinals)
* Karolína Plíšková (quarterfinals)
* Aryna Sabalenka (second round)
* Petra Kvitová (champion)
* Kiki Bertens (first round)
* Belinda Bencic (first round)
* Jennifer Brady (first round)
* Victoria Azarenka (semifinals, withdrew)

## 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 |
| 8/WC | Victoria Azarenka | | | | | | |
| | Garbiñe Muguruza | w/o | | | | | |
| | Garbiñe Muguruza | w/o | | | Garbiñe Muguruza | 2 | 1 |
| | | | | 4 | Petra Kvitová | 6 | 6 |
| 4 | Petra Kvitová | 6 | 6 | 4 | Petra Kvitová | 6 | 6 |
| Q | Jessica Pegula | 4 | 4 | | | | |

### Top half

| 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 |
| | | | | 1 | E Svitolina | 6 | 6 | | | | | | | | |
| PR | S Zheng | 4 | 3 | LL | M Doi | 1 | 2 | | | | | | | | |
| LL | M Doi | 6 | 6 | | | | | | 1 | E Svitolina | 2 | 4 | | | |
| | E Rybakina | 6$^7$ | 6$^5$ | | | | | | 8/WC | V Azarenka | 6 | 6 | | | |
| Q | L Siegemund | 7$^9$ | 7$^7$ | Q | L Siegemund | 4 | 2 | | | | | | | | |
| | S Kuznetsova | 2 | 3 | 8/WC | V Azarenka | 6 | 6 | | | | | | | | |
| 8/WC | V Azarenka | 6 | 6 | | | | | | | | | | 8/WC | V Azarenka | |
| | | | | | | | | | | | | | | G Muguruza | w/o |
| | | | | 3 | A Sabalenka | 2 | 7$^7$ | 3 | | | | | | | |
| | V Kudermetova | 2 | 6$^4$ | | G Muguruza | 6 | 6$^5$ | 6 | | | | | | | |
| | G Muguruza | 6 | 7$^7$ | | | | | | | G Muguruza | 6 | 6 | | | |
| | M Sakkari | 6 | 6 | | | | | | | M Sakkari | 3 | 1 | | | |
| WC | M Sherif | 0 | 3 | | M Sakkari | 6 | 6 | | | | | | | | |
| | M Keys | 6 | 6 | | M Keys | 2 | 2 | | | | | | | | |
| 6 | B Bencic | 4 | 1 | | | | | | | | | | | | |

### Bottom 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 |
| 7 | J Brady | 1 | 2 | | | | | | | | | | | | | | |
| | A Kontaveit | 6 | 6 | | A Kontaveit | 6 | 6 | | | | | | | | | | |
| | A Kerber | 6 | 6 | | A Kerber | 1 | 4 | | | | | | | | | | |
| WC | Ç Büyükakçay | 4 | 2 | | | | | | | A Kontaveit | 3 | 6 | 2 | | | | |
| Q | Kr Plíšková | 2 | 3 | | | | | | 4 | P Kvitová | 6 | 3 | 6 | | | | |
| | A Pavlyuchenkova | 6 | 6 | | A Pavlyuchenkova | 1 | 3 | | | | | | | | | | |
| | | | | 4 | P Kvitová | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 4 | P Kvitová | 6 | 6 |
| 5 | K Bertens | 0 | 2 | | | | | | | | | | | Q | J Pegula | 4 | 4 |
| WC | J Ostapenko | 6 | 6 | WC | J Ostapenko | 2 | 5 | | | | | | | | | | |
| | Q Wang | 3 | 1 | Q | J Pegula | 6 | 7 | | | | | | | | | | |
| Q | J Pegula | 6 | 6 | | | | | | Q | J Pegula | 6 | 6 | | | | | |
| | O Jabeur | 6 | 6 | | | | | | 2 | Ka Plíšková | 3 | 1 | | | | | |
| Q | A Blinkova | 2 | 2 | | O Jabeur | 4 | 6 | 5 | | | | | | | | | |
| | | | | 2 | Ka Plíšková | 6 | 4 | 7 | | | | | | | | | |

## Qualifying
### Seeds

* Jessica Pegula (qualified)
* Laura Siegemund (qualified)
* Patricia Maria Țig (first round)
* Barbora Krejčíková (second round)
* Kateřina Siniaková (second round)
* Anna Blinkova (qualified)
* Kristýna Plíšková (qualified)
* Misaki Doi (qualifying competition, lucky loser)

### Qualifiers

* Jessica Pegula
* Laura Siegemund
* Anna Blinkova
* Kristýna Plíšková

### Lucky loser

* Misaki Doi

### Draw
#### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Jessica Pegula | 6 | 6 | | | | | | | | | |
| | Gabriela Dabrowski | 0 | 1 | | | | | | | | | |
| | Gabriela Dabrowski | 0 | 1 | 1 | Jessica Pegula | 6 | 6$^3$ | 7$^8$ | | | | |
| | | | | PR | Anastasia Potapova | 2 | 7$^7$ | 6$^6$ | | | | |
| PR | Liang En-shuo | 2 | 4 | PR | Anastasia Potapova | 2 | 7$^7$ | 6$^6$ | | | | |
| PR | Anastasia Potapova | 6 | 6 | | | | | | | | | |
| PR | Anastasia Potapova | 6 | 6 | | | | | | 1 | Jessica Pegula | 6 | 6 |
| | | | | | | | | | 8 | Misaki Doi | 2 | 2 |
| | Mirjam Björklund | 6 | 6 | | | | | | | | | | 8 | Misaki Doi | 2 | 2 |
| | Lucie Hradecká | 2 | 4 | | | | | | | | | |
| | Lucie Hradecká | 2 | 4 | | Mirjam Björklund | 6 | 1 | 1 | | | | |
| | | | | 8 | Misaki Doi | 3 | 6 | 6 | | | | |
| | Angelina Gabueva | 1 | 0 | 8 | Misaki Doi | 3 | 6 | 6 | | | | |
| 8 | Misaki Doi | 6 | 6 | | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Laura Siegemund | 6 | 6 | | | | | | | | | |
| | Andreja Klepač | 4 | 0 | | | | | | | | | |
| | Andreja Klepač | 4 | 0 | | 2 | Laura Siegemund | 6 | 6 | | | | |
| | | | | | | Elena-Gabriela Ruse | 2 | 2 | | | | |
| WC | Inès Ibbou | 5 | 3 | | | Elena-Gabriela Ruse | 2 | 2 | | | | |
| | Elena-Gabriela Ruse | 7 | 6 | | | | | | | | | |
| | Elena-Gabriela Ruse | 7 | 6 | | | | | | 2 | Laura Siegemund | 7$^7$ | 6 |
| | | | | | | | | | | Lesia Tsurenko | 6$^4$ | 4 |
| | Lesia Tsurenko | 6 | 6 | | | | | | | | | | Lesia Tsurenko | 6$^4$ | 4 |
| | Gabriela Cé | 1 | 1 | | | | | | | | | |
| | Gabriela Cé | 1 | 1 | | | Lesia Tsurenko | 6 | 6 | | | | |
| | | | | | 5 | Kateřina Siniaková | 3 | 2 | | | | |
| | Monica Niculescu | 2 | 6 | 0 | 5 | Kateřina Siniaková | 3 | 2 | | | | |
| 5 | Kateřina Siniaková | 6 | 4 | 6 | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Patricia Maria Țig | 3 | 2 | | | | | | | | | |
| | Bethanie Mattek-Sands | 6 | 6 | | | | | | | | | |
| | Bethanie Mattek-Sands | 6 | 6 | | Bethanie Mattek-Sands | 6 | 7 | | | | | |
| | | | | PR | Yaroslava Shvedova | 2 | 5 | | | | | |
| PR | Yaroslava Shvedova | 6 | 6 | PR | Yaroslava Shvedova | 2 | 5 | | | | | |
| PR | Akgul Amanmuradova | 3 | 0 | | | | | | | | | |
| PR | Akgul Amanmuradova | 3 | 0 | | | | | | | Bethanie Mattek-Sands | 2 | 3 |
| | | | | | | | | | 6 | Anna Blinkova | 6 | 6 |
| WC | Mubaraka Al-Naimi | 0 | 1 | | | | | | | | | | 6 | Anna Blinkova | 6 | 6 |
| | Ena Shibahara | 6 | 6 | | | | | | | | | |
| | Ena Shibahara | 6 | 6 | | Ena Shibahara | 4 | 6 | 2 | | | | |
| | | | | 6 | Anna Blinkova | 6 | 3 | 6 | | | | |
| | Lesley Pattinama Kerkhove | 3 | 6$^3$ | 6 | Anna Blinkova | 6 | 3 | 6 | | | | |
| 6 | Anna Blinkova | 6 | 7$^7$ | | | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Barbora Krejčíková | 7 | 6 | | | | | | | | | |
| | Martina Trevisan | 5 | 4 | | | | | | | | | |
| | Martina Trevisan | 5 | 4 | | 4 | Barbora Krejčíková | 3 | 5 | | | | |
| | | | | | | Cristina Bucșa | 6 | 7 | | | | |
| | Cristina Bucșa | 6 | 6 | | | Cristina Bucșa | 6 | 7 | | | | |
| | Martina Caregaro | 1 | 2 | | | | | | | | | |
| | Martina Caregaro | 1 | 2 | | | | | | | Cristina Bucșa | 2 | 2 |
| | | | | | | | | | 7 | Kristýna Plíšková | 6 | 6 |
| PR | Zhu Lin | 7 | 5 | 6 | | | | | | | | | 7 | Kristýna Plíšková | 6 | 6 |
| | Jesika Malečková | 5 | 7 | 4 | | | | | | | | |
| | Jesika Malečková | 5 | 7 | 4 | PR | Zhu Lin | 2 | 1 | | | | |
| | | | | | 7 | Kristýna Plíšková | 6 | 6 | | | | |
| | Darija Jurak | 4 | 2 | | 7 | Kristýna Plíšková | 6 | 6 | | | | |
| 7 | Kristýna Plíšková | 6 | 6 | | | | | | | | | |