# 2024 Caldas da Rainha Ladies Open – Singles

Petra Marčinko was the defending champion but chose not to participate.
Alina Korneeva won the title, defeating Anastasia Zakharova in the final, 6–1, 6–4.

## Seeds

* Petra Martić (quarterfinals, retired)
* Daria Snigur (quarterfinals)
* Ann Li (second round)
* Anastasia Zakharova (final)
* Lily Miyazaki (first round)
* Antonia Ružić (first round, retired)
* Mona Barthel (quarterfinals)
* Lucrezia Stefanini (second 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 | Semifinals | Final | Final | Final | Final |
| | Alina Korneeva | 4 | 6 | 6 | | | | |
| | Francisca Jorge | 6 | 3 | 2 | | | | |
| | Francisca Jorge | 6 | 3 | 2 | | Alina Korneeva | 6 | 6 |
| | | | | | 4 | Anastasia Zakharova | 1 | 4 |
| 4 | Anastasia Zakharova | 5 | | | 4 | Anastasia Zakharova | 1 | 4 |
| | Lina Glushko | 5$^r$ | | | | | | |

### 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 |
| 1/WC | P Martić | 6 | 6 | | | | | | | | | | | | | | |
| | J Burrage | 1 | 4 | | 1/WC | P Martić | 4 | 6 | 6 | | | | | | | | |
| | M Léonard | 0 | 0$^r$ | | Q | E Malõgina | 6 | 3 | 4 | | | | | | | | |
| Q | E Malõgina | 6 | 2 | | | | | | | 1/WC | P Martić | 0$^r$ | | | | | |
| WC | MdC Parreira | 1 | 0 | | | | | | | | A Korneeva | 0 | | | | | |
| | A Korneeva | 6 | 6 | | | A Korneeva | 7$^7$ | 6 | | | | | | | | | |
| | M Rouvroy | 6 | 3 | 1 | 8 | L Stefanini | 6$^3$ | 4 | | | | | | | | | |
| 8 | L Stefanini | 1 | 6 | 6 | | | | | | | | | | A Korneeva | 4 | 6 | 6 |
| 3 | A Li | 6 | 1 | | | | | | | | | | | F Jorge | 6 | 3 | 2 |
| Q | A Robbe | 1 | 0$^r$ | | 3 | A Li | 1 | 2 | | | | | | | | | |
| LL | S Shapatava | 1 | 1 | | | F Jorge | 6 | 6 | | | | | | | | | |
| | F Jorge | 6 | 6 | | | | | | | | F Jorge | 7$^7$ | 7$^7$ | | | | |
| Q | H Kuwata | 4 | 1 | | | | | | | Q | C Rosatello | 6$^5$ | 6$^5$ | | | | |
| | V Ryser | 6 | 6 | | | V Ryser | 7$^7$ | 5 | 1 | | | | | | | | |
| Q | C Rosatello | 6 | 7 | | Q | C Rosatello | 6$^4$ | 7 | 6 | | | | | | | | |
| 5 | L Miyazaki | 2 | 5 | | | | | | | | | | | | | | |

### 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 |
| 7 | M Barthel | 6$^8$ | 6 | 6 | | | | | | | | | | | | | |
| Q | SB Grey | 7$^{10}$ | 2 | 1 | 7 | M Barthel | 6 | 6 | | | | | | | | | |
| Q | V Diatchenko | 6 | 2 | 3 | | J Avdeeva | 1 | 4 | | | | | | | | | |
| | J Avdeeva | 0 | 6 | 6 | | | | | | 7 | M Barthel | 3 | 6$^1$ | | | | |
| WC | K Mladenovic | 2 | 7 | 6 | | | | | | 4 | A Zakharova | 6 | 7$^7$ | | | | |
| | H Tan | 6 | 5 | 3 | WC | K Mladenovic | 1 | 1 | | | | | | | | | |
| WC | T Franco Dias | 2 | 4 | | 4 | A Zakharova | 6 | 6 | | | | | | | | | |
| 4 | A Zakharova | 6 | 6 | | | | | | | | | | | | 4 | A Zakharova | 5 |
| 6 | A Ružić | 3 | 1$^r$ | | | | | | | | | | | | | L Glushko | 5$^r$ |
| LL | M Hodzic | 6 | 4 | | LL | M Hodzic | 7$^7$ | 0 | 4 | | | | | | | | |
| | L Glushko | 6 | 6 | | | L Glushko | 6$^4$ | 6 | 6 | | | | | | | | |
| | A Tikhonova | 3 | 3 | | | | | | | | L Glushko | 6 | 2 | 6 | | | |
| Q | R Jamrichová | 2 | 6 | 4 | | | | | | 2 | D Snigur | 4 | 6 | 2 | | | |
| | V Hrunčáková | 6 | 4 | 6 | | V Hrunčáková | 2 | 4 | | | | | | | | | |
| Q | A Kubareva | 2 | 3 | | 2 | D Snigur | 6 | 6 | | | | | | | | | |
| 2 | D Snigur | 6 | 6 | | | | | | | | | | | | | | |