# 2021 Internazionali Femminili di Palermo – Singles

Fiona Ferro was the defending champion, but she chose not to participate, as she was competing at the Summer Olympics.
Top seed Danielle Collins won her maiden WTA Tour singles title, defeating Elena-Gabriela Ruse in the final, 6–4, 6–2. Collins did not drop a set during the tournament.

## Seeds

* Danielle Collins (champion)
* Liudmila Samsonova (first round)
* Jil Teichmann (second round, withdrew)
* Zhang Shuai (semifinals)
* Viktoriya Tomova (first round)
* Océane Dodin (semifinals)
* Astra Sharma (quarterfinals)
* Kamilla Rakhimova (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 | Semifinals | Final | Final | Final | Final |
| 1 | Danielle Collins | 6 | 6 | | | | | |
| 4/WC | Zhang Shuai | 4 | 3 | | | | | |
| 4/WC | Zhang Shuai | 4 | 3 | | 1 | Danielle Collins | 6 | 6 |
| | | | | | Q | Elena-Gabriela Ruse | 4 | 2 |
| Q | Elena-Gabriela Ruse | 6$^4$ | 7$^7$ | 6 | Q | Elena-Gabriela Ruse | 4 | 2 |
| 6 | Océane Dodin | 7$^7$ | 6$^0$ | 1 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | D Collins | 7 | 6 | | | | | | | | | | | | | | |
| Q | K Gerlach | 5 | 3 | | 1 | D Collins | 6 | 6 | | | | | | | | | |
| | G Gatto-Monticone | 2 | 3 | | | M Inglis | 4 | 1 | | | | | | | | | |
| | M Inglis | 6 | 6 | | | | | | 1 | D Collins | 6 | 6 | | | | | |
| | L Küng | 3 | 2 | | | | | | 7 | A Sharma | 1 | 4 | | | | | |
| | N Vikhlyantseva | 6 | 6 | | | N Vikhlyantseva | 4 | 5 | | | | | | | | | |
| WC | L Stefanini | 4 | 6 | 3 | 7 | A Sharma | 6 | 7 | | | | | | | | | |
| 7 | A Sharma | 6 | 1 | 6 | | | | | | | | | | 1 | D Collins | 6 | 6 |
| 4/WC | S Zhang | 7 | 6 | | | | | | | | | | | 4/WC | S Zhang | 4 | 3 |
| | C Bucșa | 5 | 3 | | 4/WC | S Zhang | 6 | 6 | | | | | | | | | |
| | V Savinykh | 5 | 3 | | | F Di Lorenzo | 1 | 2 | | | | | | | | | |
| | F Di Lorenzo | 7 | 6 | | | | | | 4/WC | S Zhang | 4 | 6 | 7$^7$ | | | | |
| | K Zavatska | 6 | 6 | | | | | | | O Danilović | 6 | 3 | 6$^2$ | | | | |
| | L Cabrera | 2 | 3 | | | K Zavatska | 6$^4$ | 5 | | | | | | | | | |
| | O Danilović | 3 | 6 | 6 | | O Danilović | 7$^7$ | 7 | | | | | | | | | |
| 8 | K Rakhimova | 6 | 2 | 2 | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | V Tomova | 4 | 1 | | | | | | | | | | | | | | | |
| WC | L Bronzetti | 6 | 6 | | WC | L Bronzetti | 6 | 6 | | | | | | | | | | |
| | L Arruabarrena | 3 | 4 | | | G Min | 3 | 1 | | | | | | | | | | |
| | G Min | 6 | 6 | | | | | | WC | L Bronzetti | 4 | 5 | | | | | | |
| PR | M Minella | 3 | 1 | | | | | | Q | E-G Ruse | 6 | 7 | | | | | | |
| Q | E-G Ruse | 6 | 6 | | Q | E-G Ruse | w/o | | | | | | | | | | | |
| Q | M Bassols Ribera | 6 | 4 | 1 | 3 | J Teichmann | | | | | | | | | | | | |
| 3 | J Teichmann | 3 | 6 | 6 | | | | | | | | | | Q | E-G Ruse | 6$^4$ | 7$^7$ | 6 |
| 6 | O Dodin | 6 | 6 | | | | | | | | | | | 6 | O Dodin | 7$^7$ | 6$^0$ | 1 |
| PR | A Dulgheru | 3 | 2 | | 6 | O Dodin | 7$^9$ | 6 | | | | | | | | | | |
| | V Diatchenko | 6 | 7$^7$ | | | V Diatchenko | 6$^7$ | 4 | | | | | | | | | | |
| | J Grabher | 3 | 6$^5$ | | | | | | 6 | O Dodin | 6$^6$ | 6 | 6 | | | | | |
| WC | N Brancaccio | 6 | 3 | 4 | | | | | | J Cristian | 7$^8$ | 3 | 4 | | | | | |
| | J Cristian | 2 | 6 | 6 | | J Cristian | 6 | 6 | | | | | | | | | | |
| Q | Q Zheng | 6 | 6 | | Q | Q Zheng | 1 | 4 | | | | | | | | | | |
| 2 | L Samsonova | 3 | 2 | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Elena-Gabriela Ruse (qualified)
* Zheng Qinwen (qualified)
* Despina Papamichail (qualifying competition)
* Martina Di Giuseppe (qualifying competition)
* Katharina Gerlach (qualified)
* Samantha Murray Sharan (first round)
* Marina Bassols Ribera (qualified)
* Camilla Rosatello (qualifying competition)

### Qualifiers

* Elena-Gabriela Ruse
* Zheng Qinwen
* Katharina Gerlach
* Marina Bassols Ribera

### Draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Elena-Gabriela Ruse | 6 | 6 | | | | | |
| | Jasmin Jebawy | 1 | 3 | | | | | |
| | Jasmin Jebawy | 1 | 3 | | 1 | Elena-Gabriela Ruse | 6 | 6 |
| | | | | | 8 | Camilla Rosatello | 1 | 0 |
| | Victoria Duval | 4 | 6 | 5 | 8 | Camilla Rosatello | 1 | 0 |
| 8 | Camilla Rosatello | 6 | 4 | 7 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Zheng Qinwen | 6 | 6 | | | | | |
| PR | Louisa Chirico | 2 | 0 | | | | | |
| PR | Louisa Chirico | 2 | 0 | | 2 | Zheng Qinwen | 6 | 6 |
| | | | | | WC | Melania Delai | 2 | 1 |
| WC | Melania Delai | 2 | 6 | 6 | WC | Melania Delai | 2 | 1 |
| 6 | Samantha Murray Sharan | 6 | 3 | 2 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Despina Papamichail | 3 | 7 | 6 | | | | | |
| | Dalila Spiteri | 6 | 5 | 2 | | | | | |
| | Dalila Spiteri | 6 | 5 | 2 | 3 | Despina Papamichail | 4 | 6 | 5 |
| | | | | | 5 | Katharina Gerlach | 6 | 2 | 7 |
| | Lisa Pigato | 5 | 6$^5$ | | 5 | Katharina Gerlach | 6 | 2 | 7 |
| 5 | Katharina Gerlach | 7 | 7$^7$ | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Martina Di Giuseppe | 6 | 6 | | | | |
| | Quinn Gleason | 1 | 3 | | | | |
| | Quinn Gleason | 1 | 3 | 4 | Martina Di Giuseppe | 6$^4$ | 6$^7$ |
| | | | | 7 | Marina Bassols Ribera | 7$^7$ | 7$^9$ |
| WC | Federica Bilardo | 0 | 1 | 7 | Marina Bassols Ribera | 7$^7$ | 7$^9$ |
| 7 | Marina Bassols Ribera | 6 | 6 | | | | |