# 2021 Phillip Island Trophy – Singles

The Phillip Island Trophy was a new addition to the WTA Tour in 2021.
Daria Kasatkina won the title, defeating Marie Bouzková in the final, 4–6, 6–2, 6–2.

## Seeds

The top eight seeds received a bye into the second round.
    01. Sofia Kenin (second round)
    02. Bianca Andreescu (semifinals)
    03. Johanna Konta (withdrew)
    04. Petra Martić (quarterfinals)
    05. Wang Qiang (third round)
    06. Zhang Shuai (withdrew)
    07. Anastasia Pavlyuchenkova (third round)
    08. Danielle Collins (semifinals)
    09. Sloane Stephens (first round)
    10. Caroline Garcia (first round)
    11. Zheng Saisai (first round)
    12. Nadia Podoroska (first round)
    13. Marie Bouzková (final)
    14. Anastasija Sevastova (first round)
    15. Alizé Cornet (first round)
    16. Rebecca Peterson (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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 16 | Rebecca Peterson | 1 | 2 | | | | | | | | | | | |
| 8 | Danielle Collins | 6 | 6 | | | | | | | | | | | |
| 8 | Danielle Collins | 6 | 6 | | 8 | Danielle Collins | 2 | 7$^8$ | 1 | | | | | |
| | | | | | | Daria Kasatkina | 6 | 6$^6$ | 6 | | | | | |
| 4 | Petra Martić | 0 | 4 | | | Daria Kasatkina | 6 | 6$^6$ | 6 | | | | | |
| | Daria Kasatkina | 6 | 6 | | | | | | | | | | | |
| | Daria Kasatkina | 6 | 6 | | | | | | | | Daria Kasatkina | 4 | 6 | 6 |
| | | | | | | | | | | 13 | Marie Bouzková | 6 | 2 | 2 |
| | Jil Teichmann | 3 | 6 | 2 | | | | | | | | | | | 13 | Marie Bouzková | 6 | 2 | 2 |
| 13 | Marie Bouzková | 6 | 4 | 6 | | | | | | | | | | |
| 13 | Marie Bouzková | 6 | 4 | 6 | 13 | Marie Bouzková | 6$^9$ | 6 | 7 | | | | | |
| | | | | | 2/WC | Bianca Andreescu | 7$^{11}$ | 2 | 5 | | | | | |
| | Irina-Camelia Begu | 3 | 6 | 6$^5$ | 2/WC | Bianca Andreescu | 7$^{11}$ | 2 | 5 | | | | | |
| 2/WC | Bianca Andreescu | 6 | 4 | 7$^7$ | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1/WC | S Kenin | 6 | 6$^4$ | 4 | | | | | | | | |
| WC | O Gadecki | 6 | 6 | | WC | O Gadecki | 2 | 7$^7$ | 6 | | | | | | | | |
| WC | D Aiava | 4 | 4 | | | | | | | WC | O Gadecki | 5 | 3 | | | | |
| G Minnen | G Minnen | 6 | 6 | | | | | | | 16 | R Peterson | 7 | 6 | | | | |
| T Babos | T Babos | 2 | 2 | | | G Minnen | 5 | 3 | | | | | | | | | |
| | A Potapova | 4 | 6 | 3 | 16 | R Peterson | 7 | 6 | | | | | | | | | |
| 16 | R Peterson | 6 | 4 | 6 | | | | | | | | | | 16 | R Peterson | 1 | 2 |
| 10 | C Garcia | 5 | 3 | | | | | | | | | | | 8 | D Collins | 6 | 6 |
| | M Doi | 7 | 6 | | M Doi | M Doi | w/o | | | | | | | | | | |
| S Sorribes Tormo | S Sorribes Tormo | 6$^6$ | 6 | 7$^7$ | S Sorribes Tormo | S Sorribes Tormo | | | | | | | | | | | |
| L Samsonova | L Samsonova | 7$^8$ | 1 | 6$^4$ | | | | | | | M Doi | 4 | 2 | | | | |
| Q | V Lepchenko | 6 | 3 | | | | | | | 8 | D Collins | 6 | 6 | | | | |
| | N Hibino | 3 | 0$^r$ | | Q | V Lepchenko | 7$^7$ | 1 | 3 | | | | | | | | |
| | | | | | 8 | D Collins | 6$^3$ | 6 | 6 | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | P Martić | 6 | 5 | 6 | | | | | | | | | |
| Q | M Barthel | 4 | 3 | | Q | R Marino | 2 | 7 | 4 | | | | | | | | | |
| Q | R Marino | 6 | 6 | | | | | | | 4 | P Martić | 6 | 6 | | | | | |
| | E Cocciaretto | 7 | 1 | 2 | | | | | | WC | K Birrell | 1 | 3 | | | | | |
| Q | A Raina | 5 | 6 | 6 | Q | A Raina | 3 | 6 | 4 | | | | | | | | | |
| WC | K Birrell | 6 | 7 | | WC | K Birrell | 6 | 3 | 6 | | | | | | | | | |
| 15 | A Cornet | 2 | 5 | | | | | | | | | | | | 4 | P Martić | 0 | 4 |
| 9 | S Stephens | 2 | 2 | | | | | | | | | | | | | D Kasatkina | 6 | 6 |
| | V Gracheva | 6 | 6 | | V Gracheva | V Gracheva | 4 | 3 | | | | | | | | | | |
| | D Kasatkina | 6 | 6 | | D Kasatkina | D Kasatkina | 6 | 6 | | | | | | | | | | |
| PR | K Boulter | 4 | 2 | | | | | | | | D Kasatkina | 2 | 6 | 6 | | | | |
| Q | L Cabrera | 3 | 4 | | | | | | | 7 | A Pavlyuchenkova | 6 | 1 | 4 | | | | |
| | A Tomljanović | 6 | 6 | | | A Tomljanović | 7 | 4 | 2 | | | | | | | | | |
| | | | | | 7 | A Pavlyuchenkova | 5 | 6 | 6 | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | LL | M Niculescu | 2 | 2 | | | | | | | | | | |
| Q | M Buzărnescu | 7$^7$ | 3 | 3 | | J Teichmann | 6 | 6 | | | | | | | | | | |
| | J Teichmann | 6$^5$ | 6 | 6 | | | | | | J Teichmann | J Teichmann | 6 | 3 | | | | | |
| LL | L Tsurenko | 6 | 2 | 3 | | | | | | PM Țig | PM Țig | 3 | 3$^r$ | | | | | |
| | PM Țig | 2 | 6 | 6 | | PM Țig | 6 | 6 | | | | | | | | | | |
| Q | F Jones | 6 | 3 | 6 | Q | F Jones | 1 | 4 | | | | | | | | | | |
| 11 | S Zheng | 2 | 6 | 2 | | | | | | | | | | | J Teichmann | 3 | 6 | 2 |
| 13 | M Bouzková | 3 | 5 | | | | | | | | | | | 13 | M Bouzková | 6 | 4 | 6 |
| | D Kovinić | 6 | 0$^r$ | | 13 | M Bouzková | 6 | 6 | | | | | | | | | | |
| | S Errani | 2 | 3 | | PR | L Zhu | 4 | 2 | | | | | | | | | | |
| PR | L Zhu | 6 | 6 | | | | | | | 13 | M Bouzková | 6 | 6 | | | | | |
| A Sasnovich | A Sasnovich | 6 | 6 | | | | | | | LL | G Da Silva-Fick | 1 | 1 | | | | | |
| L Davis | L Davis | 3 | 2 | | | A Sasnovich | 3 | 6 | 6$^6$ | | | | | | | | | |
| | | | | | LL | G Da Silva-Fick | 6 | 2 | 7$^8$ | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | Q Wang | 6 | 6 | | | | | | | | | | | |
| Q | K Rakhimova | 3 | 3 | | | M Inglis | 4 | 2 | | | | | | | | | | | |
| | M Inglis | 6 | 6 | | | | | | | 5 | Q Wang | 7$^7$ | 2 | 1 | | | | | |
| A Blinkova | A Blinkova | 4 | 7$^7$ | 6 | | | | | | | I-C Begu | 6$^2$ | 6 | 6 | | | | | |
| A Petkovic | A Petkovic | 6 | 6$^3$ | 4 | A Blinkova | A Blinkova | 3 | 2 | | | | | | | | | | | |
| | I-C Begu | 6 | 6 | | I-C Begu | I-C Begu | 6 | 6 | | | | | | | | | | | |
| 12 | N Podoroska | 3 | 3 | | | | | | | | | | | | | I-C Begu | 3 | 6 | 6$^5$ |
| 14 | A Sevastova | 6 | 3 | 3 | | | | | | | | | | | 2/WC | B Andreescu | 6 | 4 | 7$^7$ |
| | A Bogdan | 4 | 6 | 6 | A Bogdan | A Bogdan | 4 | 7 | 2 | | | | | | | | | | |
| C McHale | C McHale | 6 | 3 | 1 | Z Diyas | Z Diyas | 6 | 5 | 6 | | | | | | | | | | |
| Z Diyas | Z Diyas | 3 | 6 | 6 | | | | | | | Z Diyas | 1 | 0$^r$ | | | | | | |
| Y Wang | Y Wang | 3 | 4 | | | | | | | 2/WC | B Andreescu | 6 | 0 | | | | | | |
| M Brengle | M Brengle | 6 | 6 | | | M Brengle | 6$^4$ | 6 | 3 | | | | | | | | | | |
| | | | | | 2/WC | B Andreescu | 7$^7$ | 4 | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Mihaela Buzărnescu (qualified)
* Lizette Cabrera (qualified)
* Monica Niculescu (qualifying competition, lucky loser)
* Lesia Tsurenko (qualifying competition, lucky loser)
* Kamilla Rakhimova (qualified)
* Mayo Hibi (qualifying competition)
* Ankita Raina (qualified)
* Varvara Lepchenko (qualified)

### Qualifiers

* Mihaela Buzărnescu
* Lizette Cabrera
* Francesca Jones
* Mona Barthel
* Kamilla Rakhimova
* Rebecca Marino
* Ankita Raina
* Varvara Lepchenko

### Lucky losers

* Lesia Tsurenko
* Monica Niculescu
* Gabriella Da Silva-Fick

### Draw
#### First qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Mihaela Buzărnescu | 6 | 6 | |
| | Chloé Paquet | 2 | 4 | |

#### Second qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Lizette Cabrera | 6 | 6 | |
| WC | Charlotte Kempenaers-Pocz | 2 | 0 | |

#### Third qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Monica Niculescu | 2 | 2 | |
| | Francesca Jones | 6 | 6 | |

#### Fourth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Lesia Tsurenko | 7$^7$ | 5 | 3 |
| | Mona Barthel | 6$^1$ | 7 | 6 |

#### Fifth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Kamilla Rakhimova | 7$^9$ | 6 | |
| | Olga Danilović | 6$^7$ | 4 | |

#### Sixth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Mayo Hibi | 4 | 3 | |
| | Rebecca Marino | 6 | 6 | |

#### Seventh qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 7 | Ankita Raina | 6 | 4 | 6 |
| WC | Gabriella Da Silva-Fick | 0 | 6 | 4 |

#### Eighth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 8 | Varvara Lepchenko | 6 | 6 | |
| | Valeria Savinykh | 0 | 4 | |