# 2023 Ladies Open Lausanne – Singles

Elisabetta Cocciaretto defeated Clara Burel in the final, 7–5, 4–6, 6–4 to win the singles tennis title at the 2023 Swiss Open. It was her first WTA Tour title. Cocciaretto saved multiple match points during the tournament—one match point against Céline Naef in the first round, and a further match point in the semifinals against Anna Bondár.
Petra Martić was the reigning champion, but chose not to defend her title.

## Seeds

* Irina-Camelia Begu (withdrew)
* Elisabetta Cocciaretto (champion)
* Ana Bogdan (quarterfinals, retired)
* Lucia Bronzetti (first round)
* Emma Navarro (second round)
* Mirra Andreeva (second round)
* Alizé Cornet (quarterfinals)
* Elina Avanesyan (quarterfinals)
* Diane Parry (semifinals)

## 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 | Final |
| 9 | Diane Parry | 6 | 6$^2$ | 3 | | | | | |
| | Clara Burel | 4 | 7$^7$ | 6 | | | | | |
| | Clara Burel | 4 | 7$^7$ | 6 | | Clara Burel | 5 | 6 | 4 |
| | | | | | 2 | Elisabetta Cocciaretto | 7 | 4 | 6 |
| | Anna Bondár | 7$^7$ | 6$^6$ | 5 | 2 | Elisabetta Cocciaretto | 7 | 4 | 6 |
| 2 | Elisabetta Cocciaretto | 6$^3$ | 7$^8$ | 7 | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | D Parry | 7 | 2 | 6 | | | | | | | | | | | | | | |
| WC | F Ferro | 5 | 6 | 2 | 9 | D Parry | 6 | 7 | | | | | | | | | | |
| LL | J Dürst | 0 | 2 | | | D Kovinić | 4 | 5 | | | | | | | | | | |
| | D Kovinić | 6 | 6 | | | | | | | 9 | D Parry | 6 | 6 | | | | | |
| | J Teichmann | 6 | 6 | | | | | | | 7 | A Cornet | 3 | 2 | | | | | |
| | E Andreeva | 2 | 2 | | | J Teichmann | 1 | 6 | 4 | | | | | | | | | |
| | V Golubic | 6 | 1 | 3 | 7 | A Cornet | 6 | 1 | 6 | | | | | | | | | |
| 7 | A Cornet | 3 | 6 | 6 | | | | | | | | | | 9 | D Parry | 6 | 6$^2$ | 3 |
| 3 | A Bogdan | 2 | 6 | 6 | | | | | | | | | | | C Burel | 4 | 7$^7$ | 6 |
| | S Waltert | 6 | 3 | 3 | 3 | A Bogdan | 6 | 5 | 6 | | | | | | | | | |
| Q | V Grammatikopoulou | 6$^{11}$ | 2 | | Q | D Jakupović | 0 | 7 | 3 | | | | | | | | | |
| Q | D Jakupović | 7$^{13}$ | 6 | | | | | | | 3 | A Bogdan | 3 | 0$^r$ | | | | | |
| | O Danilović | 4 | 4 | | | | | | | | C Burel | 6 | 1 | | | | | |
| | C Burel | 6 | 6 | | | C Burel | 6 | 6 | | | | | | | | | | |
| | L Jeanjean | 0 | 0 | | 5 | E Navarro | 3 | 2 | | | | | | | | | | |
| 5 | E Navarro | 6 | 6 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | M Andreeva | 6 | 6 | | | | | | | | | | | | | | | |
| Alt | D Yastremska | 0 | 2 | | 6 | M Andreeva | 6$^3$ | 3 | | | | | | | | | | |
| | A Bolsova | 1 | 3 | | | A Bondár | 7$^7$ | 6 | | | | | | | | | | |
| | A Bondár | 6 | 6 | | | | | | | | A Bondár | 6 | 6 | | | | | |
| | S Sorribes Tormo | 6 | 6 | | | | | | | | T Zidanšek | 2 | 0 | | | | | |
| WC | S Bandecchi | 2 | 1 | | | S Sorribes Tormo | 3 | 5 | | | | | | | | | | |
| | T Zidanšek | 6 | 6 | | | T Zidanšek | 6 | 7 | | | | | | | | | | |
| 4 | L Bronzetti | 2 | 4 | | | | | | | | | | | | A Bondár | 7$^7$ | 6$^6$ | 5 |
| 8 | E Avanesyan | 6 | 2 | | | | | | | | | | | 2 | E Cocciaretto | 6$^3$ | 7$^8$ | 7 |
| PR | E Rodina | 2 | 0$^r$ | | 8 | E Avanesyan | 2 | 7 | 6 | | | | | | | | | |
| Q | RL Jani | 5 | 2 | | Q | C Paquet | 6 | 5 | 1 | | | | | | | | | |
| Q | C Paquet | 7 | 6 | | | | | | | 8 | E Avanesyan | 5 | 3 | | | | | |
| | J Riera | 6 | 6 | | | | | | | 2 | E Cocciaretto | 7 | 6 | | | | | |
| PR | PM Țig | 2 | 1 | | | J Riera | 1 | 6 | 3 | | | | | | | | | |
| WC | C Naef | 6 | 6$^1$ | 2 | 2 | E Cocciaretto | 6 | 3 | 6 | | | | | | | | | |
| 2 | E Cocciaretto | 3 | 7$^7$ | 6 | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Dayana Yastremska (moved to main draw)
* Réka Luca Jani (qualified)
* Valentini Grammatikopoulou (qualified)
* Chloé Paquet (qualified)

### Qualifiers

* Dalila Jakupović
* Réka Luca Jani
* Valentini Grammatikopoulou
* Chloé Paquet

### Lucky loser

* Jenny Dürst

### Qualifying draw
#### First qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| Alt | Dalila Jakupović | 6 | 7 | |
| WC | Jenny Dürst | 4 | 5 | |

#### Second qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Réka Luca Jani | 6 | 6 | |
| PR | Amandine Hesse | 0 | 3 | |

#### Third qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Valentini Grammatikopoulou | 6 | 6 | |
| WC | Valentina Ryser | 1 | 3 | |

#### Fourth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Chloé Paquet | 6 | 6 | |
| | Carol Zhao | 2 | 4 | |