# 2023 Toray Pan Pacific Open – Singles

Veronika Kudermetova defeated Jessica Pegula in the final, 7–5, 6–1 to win the singles tennis title at the 2023 Toray Pan Pacific Open.
Liudmila Samsonova was the defending champion, but lost in the second round to Ekaterina Alexandrova.
This was the final professional appearance of former world No. 30 Misaki Doi. She lost to Maria Sakkari in the second round.

## Seeds

The top two seeds received a bye into the second round. Two Guadalajara semifinalists – Maria Sakkari and Caroline Garcia – also received a bye into the second round.
* Iga Świątek (quarterfinals)
* Jessica Pegula (final)
* Elena Rybakina (withdrew)
* Maria Sakkari (semifinals)
* Caroline Garcia (quarterfinals)
* Daria Kasatkina (quarterfinals)
* Liudmila Samsonova (second round)
* Veronika Kudermetova (champion)

## 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 |
| 8 | Veronika Kudermetova | 7$^8$ | 6$^2$ | 6 | | | | |
| | Anastasia Pavlyuchenkova | 6$^6$ | 7$^7$ | 3 | | | | |
| | Anastasia Pavlyuchenkova | 6$^6$ | 7$^7$ | 3 | 8 | Veronika Kudermetova | 7 | 6 |
| | | | | | 2 | Jessica Pegula | 5 | 1 |
| 4 | Maria Sakkari | 2 | 3 | | 2 | Jessica Pegula | 5 | 1 |
| 2 | Jessica Pegula | 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 | Semifinals |
| | | | | | 1 | I Świątek | 6 | 7 | | | | | | | | | | | |
| Q | M Hontama | 6 | 6 | | Q | M Hontama | 4 | 5 | | | | | | | | | | | |
| | N Hibino | 2 | 4 | | | | | | | 1 | I Świątek | 2 | 6 | 4 | | | | | |
| | K Day | 6 | 6 | | | | | | | 8 | V Kudermetova | 6 | 2 | 6 | | | | | |
| WC | M Uchijima | 2 | 2 | | | K Day | 3 | 3 | | | | | | | | | | | |
| Q | H Dart | 3 | 6$^4$ | | 8 | V Kudermetova | 6 | 6 | | | | | | | | | | | |
| 8 | V Kudermetova | 6 | 7$^7$ | | | | | | | | | | | | 8 | V Kudermetova | 7$^8$ | 6$^2$ | 6 |
| LL | H Sakatsume | 2 | 5 | | | | | | | | | | | | | A Pavlyuchenkova | 6$^6$ | 7$^7$ | 3 |
| | L Nosková | 6 | 7 | | | L Nosková | 3 | 6 | 0 | | | | | | | | | | |
| | A Pavlyuchenkova | 6 | 6 | | | A Pavlyuchenkova | 6 | 4 | 6 | | | | | | | | | | |
| | D Vekić | 1 | 1 | | | | | | | | A Pavlyuchenkova | 6 | 7 | | | | | | |
| WC | A Kalinskaya | 7$^9$ | 1 | 5 | | | | | | | E Alexandrova | 2 | 5 | | | | | | |
| | E Alexandrova | 6$^7$ | 6 | 7 | | E Alexandrova | 6 | 6 | | | | | | | | | | | |
| | T Maria | 0 | 2 | | 7 | L Samsonova | 4 | 2 | | | | | | | | | | | |
| 7 | L Samsonova | 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 |
| | | | | | 5 | C Garcia | 6 | 6 | | | | | | | | |
| | A Krueger | 3 | 1 | | | A Kalinina | 4 | 3 | | | | | | | | |
| | A Kalinina | 6 | 6 | | | | | | 5 | C Garcia | 2 | 2 | | | | |
| | P Martić | 5 | 2 | | | | | | 4 | M Sakkari | 6 | 6 | | | | |
| Q | M Doi | 7 | 6 | | Q | M Doi | 3 | 1 | | | | | | | | |
| | | | | | 4 | M Sakkari | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | | 4 | M Sakkari | 2 | 3 |
| 6 | D Kasatkina | 3 | 6 | 6 | | | | | | | | | 2 | J Pegula | 6 | 6 |
| | M Kostyuk | 6 | 4 | 3 | 6 | D Kasatkina | 6 | 6 | | | | | | | | |
| LL | S Hosogi | 6$^3$ | 5 | | Q | D Papamichail | 4 | 4 | | | | | | | | |
| Q | D Papamichail | 7$^7$ | 7 | | | | | | 6 | D Kasatkina | 1 | 0 | | | | |
| | C Bucșa | 6 | 6 | | | | | | 2 | J Pegula | 6 | 6 | | | | |
| Q | R Saigo | 1 | 2 | | | C Bucșa | 1 | 2 | | | | | | | | |
| | | | | | 2 | J Pegula | 6 | 6 | | | | | | | | |

## Qualifying
### Seeds

* Ashlyn Krueger (moved to main draw)
* Mai Hontama (qualified)
* Harriet Dart (qualified)
* Himeno Sakatsume (qualifying competition, lucky loser)
* Despina Papamichail (qualified)
* Sakura Hosogi (qualifying competition, lucky loser)
* Misaki Doi (qualified)
* Rina Saigo (qualified)
* Natsumi Kawaguchi (qualified, withdrew)
* Yuki Naito (first round)
* Ellen Perez (qualifying competition)
* Sara Saito (qualifying competition)

### Qualifiers

* Misaki Doi
* Mai Hontama
* Harriet Dart
* Natsumi Kawaguchi
* Despina Papamichail
* Rina Saigo

### Lucky losers

* Himeno Sakatsume
* Sakura Hosogi

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 1 | Ashlyn Krueger | |
| | | | | 7 | Misaki Doi | w/o |
| WC | Rinko Matsuda | 3 | 0 | 7 | Misaki Doi | w/o |
| 7 | Misaki Doi | 6 | 6 | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Mai Hontama | 6 | 6 | | | | |
| WC | Saki Imamura | 3 | 3 | | | | |
| WC | Saki Imamura | 3 | 3 | 2 | Mai Hontama | 6 | 6 |
| | | | | 12 | Sara Saito | 2 | 2 |
| | Nicole Melichar-Martinez | 3 | 2 | 12 | Sara Saito | 2 | 2 |
| 12 | Sara Saito | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Harriet Dart | 4 | 6 | 6 | | | | |
| WC | Sayaka Ishii | 6 | 1 | 3 | | | | |
| WC | Sayaka Ishii | 6 | 1 | 3 | 3 | Harriet Dart | 6 | 6 |
| | | | | | WC | Oksana Kalashnikova | 0 | 4 |
| WC | Oksana Kalashnikova | 2 | 6 | 7$^7$ | WC | Oksana Kalashnikova | 0 | 4 |
| 10 | Yuki Naito | 6 | 3 | 6$^4$ | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Himeno Sakatsume | 6 | 6 | | | | |
| | Nagi Hanatani | 2 | 0 | | | | |
| | Nagi Hanatani | 2 | 0 | 4 | Himeno Sakatsume | 6$^2$ | 4 |
| | | | | 9 | Natsumi Kawaguchi | 7$^7$ | 6 |
| WC | Bibiane Schoofs | 4 | 3 | 9 | Natsumi Kawaguchi | 7$^7$ | 6 |
| 9 | Natsumi Kawaguchi | 6 | 6 | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Despina Papamichail | 6 | 6 | | | | | |
| WC | Lidziya Marozava | 1 | 1 | | | | | |
| WC | Lidziya Marozava | 1 | 1 | | 5 | Despina Papamichail | 6 | 6 |
| | | | | | 11 | Ellen Perez | 4 | 3 |
| | Ena Shibahara | 6 | 2 | 3 | 11 | Ellen Perez | 4 | 3 |
| 11 | Ellen Perez | 3 | 6 | 6 | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Sakura Hosogi | 6 | 7 | | | | |
| WC | Chihiro Muramatsu | 3 | 5 | | | | |
| WC | Chihiro Muramatsu | 3 | 5 | 6 | Sakura Hosogi | 1 | 3 |
| | | | | 8 | Rina Saigo | 6 | 6 |
| | Giuliana Olmos | 6$^8$ | 3 | 8 | Rina Saigo | 6 | 6 |
| 8 | Rina Saigo | 7$^{10}$ | 6 | | | | |