# 2025 Singapore Tennis Open – Singles

Elise Mertens defeated Ann Li, 6–1, 6–4 in the final, to win the singles title at the 2025 Singapore Tennis Open. It was her ninth WTA Tour singles title.
This was the first edition of the tournament.

## Seeds

* Anna Kalinskaya (semifinals, retired)
* Elise Mertens (champion)
* Amanda Anisimova (withdrew)
* Wang Xinyu (semifinals)
* Polina Kudermetova (first round)
* Camila Osorio (quarterfinals)
* Emma Raducanu (first round)
* Moyuka Uchijima (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 |
| 1 | Anna Kalinskaya | 6$^2$ | 0$^r$ | | | | |
| | Ann Li | 7$^7$ | 1 | | | | |
| | Ann Li | 7$^7$ | 1 | | Ann Li | 1 | 4 |
| | | | | 2 | Elise Mertens | 6 | 6 |
| 4 | Wang Xinyu | 3 | 4 | 2 | Elise Mertens | 6 | 6 |
| 2 | Elise Mertens | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Kalinskaya | 6 | 4 | 6 | | | | | | | | | | | | | | |
| | C Dolehide | 4 | 6 | 2 | 1 | A Kalinskaya | 6 | 7$^7$ | | | | | | | | | | |
| | A Tomljanović | 2 | 3 | | Q | S Waltert | 2 | 6$^3$ | | | | | | | | | | |
| Q | S Waltert | 6 | 6 | | | | | | | 1 | A Kalinskaya | 6 | 4 | 6 | | | | |
| Q | M Sawangkaew | 6 | 7$^7$ | | | | | | | Q | M Sawangkaew | 3 | 6 | 0 | | | | |
| Q | S Wei | 4 | 6$^2$ | | Q | M Sawangkaew | 6 | 6 | | | | | | | | | | |
| | C Bucșa | 5 | 7 | 7 | | C Bucșa | 4 | 4 | | | | | | | | | | |
| 7 | E Raducanu | 7 | 5 | 5 | | | | | | | | | | | 1 | A Kalinskaya | 6$^2$ | 0$^r$ |
| LL | M Timofeeva | 6 | 7$^7$ | | | | | | | | | | | | | A Li | 7$^7$ | 1 |
| | Xiy Wang | 3 | 6$^3$ | | LL | M Timofeeva | 3 | 2 | | | | | | | | | | |
| | A Li | 6 | 6 | | | A Li | 6 | 6 | | | | | | | | | | |
| | D Saville | 3 | 1 | | | | | | | | A Li | 7$^7$ | 7$^7$ | | | | | |
| | R Zarazúa | 6 | 0 | 3 | | | | | | WC | K Birrell | 6$^2$ | 6$^4$ | | | | | |
| | H Baptiste | 2 | 6 | 6 | | H Baptiste | 7$^7$ | 3 | 5 | | | | | | | | | |
| WC | K Birrell | 6 | 6 | | WC | K Birrell | 6$^3$ | 6 | 7 | | | | | | | | | |
| 5 | P Kudermetova | 3 | 2 | | | | | | | | | | | | | | | |

### 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 | M Uchijima | 1 | 7$^7$ | 2 | | | | | | | | | | | | | | |
| | O Gadecki | 6 | 6$^1$ | 6 | | O Gadecki | 4 | 4 | | | | | | | | | | |
| Q | J Teichmann | 6 | 6 | | Q | J Teichmann | 6 | 6 | | | | | | | | | | |
| | H Dart | 3 | 1 | | | | | | | Q | J Teichmann | 7$^7$ | 6$^5$ | 4 | | | | |
| Q | M Joint | 4 | 6 | 7 | | | | | | 4 | Xin Wang | 6$^5$ | 7$^7$ | 6 | | | | |
| | A Parks | 6 | 1 | 5 | Q | M Joint | 4 | 2 | | | | | | | | | | |
| | R Marino | 4 | 7 | 5 | 4 | Xin Wang | 6 | 6 | | | | | | | | | | |
| 4 | Xin Wang | 6 | 5 | 7 | | | | | | | | | | | 4 | Xin Wang | 3 | 4 |
| 6 | C Osorio | 6 | 6$^0$ | 6 | | | | | | | | | | | 2 | E Mertens | 6 | 6 |
| | B Pera | 1 | 7$^7$ | 3 | 6 | C Osorio | 3 | 6 | 6 | | | | | | | | | |
| Q | D Šalková | 7$^7$ | 6 | | Q | D Šalková | 6 | 2 | 4 | | | | | | | | | |
| | E Andreeva | 6$^5$ | 2 | | | | | | | 6 | C Osorio | 4 | 2 | | | | | |
| | Y Starodubtseva | 6 | 1 | 2 | | | | | | 2 | E Mertens | 6 | 6 | | | | | |
| | T Maria | 2 | 6 | 6 | | T Maria | 7$^7$ | 3 | 1 | | | | | | | | | |
| | T Townsend | 1 | 0 | | 2 | E Mertens | 6$^3$ | 6 | 6 | | | | | | | | | |
| 2 | E Mertens | 6 | 6 | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Maya Joint (qualified)
* Aoi Ito (first round)
* Anna Karolína Schmiedlová (first round)
* Wei Sijia (qualified)
* Darja Semeņistaja (first round)
* Chloé Paquet (first round)
* Jil Teichmann (qualified)
* Maria Timofeeva (qualifying competition, lucky loser)
* Alexandra Eala (qualifying competition)
* Mananchaya Sawangkaew (qualified)
* Nao Hibino (qualifying competition)
* Zhu Lin (qualifying competition, retired)

### Qualifiers

* Maya Joint
* Mananchaya Sawangkaew
* Dominika Šalková
* Wei Sijia
* Jil Teichmann
* Simona Waltert

### Lucky loser

* Maria Timofeeva

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Maya Joint | 7 | 6 | | | | | |
| | Mai Hontama | 5 | 2 | | | | | |
| | Mai Hontama | 5 | 2 | 1 | Maya Joint | 4 | 6 | 2 |
| | | | | 12 | Zhu Lin | 6 | 3 | 0$^r$ |
| WC | Audrey Tong | 0 | 0 | 12 | Zhu Lin | 6 | 3 | 0$^r$ |
| 12 | Zhu Lin | 6 | 6 | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Aoi Ito | 4 | 2 | | | | |
| WC | Zheng Saisai | 6 | 6 | | | | |
| WC | Zheng Saisai | 6 | 6 | WC | Zheng Saisai | 2 | 1 |
| | | | | 10 | Mananchaya Sawangkaew | 6 | 6 |
| | Lanlana Tararudee | 3 | 1 | 10 | Mananchaya Sawangkaew | 6 | 6 |
| 10 | Mananchaya Sawangkaew | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Anna Karolína Schmiedlová | 4 | 6$^6$ | | | | |
| | Dominika Šalková | 6 | 7$^8$ | | | | |
| | Dominika Šalková | 6 | 7$^8$ | | Dominika Šalková | 6 | 6 |
| | | | | 11 | Nao Hibino | 4 | 1 |
| WC | Lynelle Lim | 0 | 0 | 11 | Nao Hibino | 4 | 1 |
| 11 | Nao Hibino | 6 | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Wei Sijia | 6 | 6 | | | | | |
| WC | Eva Marie Desvignes | 1 | 2 | | | | | |
| WC | Eva Marie Desvignes | 1 | 2 | 4 | Wei Sijia | 4 | 6 | 6 |
| | | | | 8 | Maria Timofeeva | 6 | 4 | 4 |
| | Heather Watson | 2 | 4 | 8 | Maria Timofeeva | 6 | 4 | 4 |
| 8 | Maria Timofeeva | 6 | 6 | | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Darja Semeņistaja | 2 | 6 | 5 | | | | |
| | Arina Rodionova | 6 | 4 | 7 | | | | |
| | Arina Rodionova | 6 | 4 | 7 | | Arina Rodionova | 4 | 2 |
| | | | | | 7 | Jil Teichmann | 6 | 6 |
| | Arianne Hartono | 4 | 0 | | 7 | Jil Teichmann | 6 | 6 |
| 7 | Jil Teichmann | 6 | 6 | | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Chloé Paquet | 3 | 4 | | | | | |
| | Simona Waltert | 6 | 6 | | | | | |
| | Simona Waltert | 6 | 6 | | | Simona Waltert | 6 | 6 |
| | | | | | 9 | Alexandra Eala | 3 | 2 |
| | Sara Saito | 1 | 7$^7$ | 5 | 9 | Alexandra Eala | 3 | 2 |
| 9 | Alexandra Eala | 6 | 6$^1$ | 7 | | | | |