# 2021 Belgrade Challenger – Women's singles

This was the first edition of the tournament.
Anna Karolína Schmiedlová won the title, defeating Arantxa Rus in the final, 6–3, 6–3.

## Seeds

* Anna Blinkova (quarterfinals)
* Arantxa Rus (final)
* Varvara Gracheva (second round)
* Andrea Petkovic (semifinals)
* Martina Trevisan (quarterfinals)
* Kaja Juvan (first round)
* Irina Bara (second round)
* Viktoriya Tomova (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 |
| | Anna Karolína Schmiedlová | 7$^7$ | 6 | | | | |
| | Rebecca Šramková | 6$^4$ | 1 | | | | |
| | Rebecca Šramková | 6$^4$ | 1 | | Anna Karolína Schmiedlová | 6 | 6 |
| | | | | 2 | Arantxa Rus | 3 | 3 |
| 4 | Andrea Petkovic | 5 | 2 | 2 | Arantxa Rus | 3 | 3 |
| 2 | Arantxa Rus | 7 | 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 Blinkova | 6 | 6 | | | | | | | | | | | | | | | |
| | I Shinikova | 1 | 2 | | 1 | A Blinkova | 6 | 7$^7$ | | | | | | | | | | |
| | O Govortsova | 6$^2$ | 3 | | | S Bandecchi | 4 | 6$^3$ | | | | | | | | | | |
| | S Bandecchi | 7$^7$ | 6 | | | | | | | 1 | A Blinkova | 6 | 3 | 1 | | | | |
| | AK Schmiedlová | 6 | 6 | | | | | | | | AK Schmiedlová | 4 | 6 | 6 | | | | |
| | J Fett | 1 | 2 | | AK Schmiedlová | AK Schmiedlová | 6 | 5 | 7$^7$ | | | | | | | | | |
| | J Niemeier | 6 | 7$^{12}$ | | J Niemeier | J Niemeier | 4 | 7 | 6$^5$ | | | | | | | | | |
| 8 | V Tomova | 3 | 6$^{10}$ | | | | | | | | | | | | AK Schmiedlová | AK Schmiedlová | 7$^7$ | 6 |
| 3 | V Gracheva | 6 | 6 | | | | | | | | | | | | R Šramková | R Šramková | 6$^4$ | 1 |
| WC | I Šepa | 1 | 1 | | 3 | V Gracheva | 6$^5$ | 4 | | | | | | | | | | |
| | Kr Plíšková | 6 | 6 | | | Kr Plíšková | 7$^7$ | 6 | | | | | | | | | | |
| WC | T Lukas | 1 | 4 | | | | | | | Kr Plíšková | Kr Plíšková | 6 | 4 | 6$^5$ | | | | |
| | R Šramková | 6 | 2 | 6 | | | | | | R Šramková | R Šramková | 4 | 6 | 7$^7$ | | | | |
| | T Mrdeža | 3 | 6 | 4 | R Šramková | R Šramková | 6 | 3 | 6 | | | | | | | | | |
| | J Cristian | 6 | 7$^7$ | | J Cristian | J Cristian | 3 | 6 | 4 | | | | | | | | | |
| 6 | K Juvan | 3 | 6$^2$ | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | I Bara | 6 | 6 | | | | | | | | | | | | | |
| | A Hesse | 4 | 1 | | 7 | I Bara | 3 | 1 | | | | | | | | |
| Q | T Würth | 6 | 6 | | Q | T Würth | 6 | 6 | | | | | | | | |
| Q | E Yashina | 4 | 1 | | | | | | Q | T Würth | 4 | 4 | | | | |
| Q | J Ponchet | 6 | 7$^7$ | | | | | | 4 | A Petkovic | 6 | 6 | | | | |
| WC | D Vuković | 1 | 6$^4$ | | Q | J Ponchet | 5 | 2 | | | | | | | | |
| WC | L Radivojević | 3 | 7$^7$ | 2 | 4 | A Petkovic | 7 | 6 | | | | | | | | |
| 4 | A Petkovic | 6 | 6$^5$ | 6 | | | | | | | | | 4 | A Petkovic | 5 | 2 |
| 5 | M Trevisan | 6 | 3 | 6 | | | | | | | | | 2 | A Rus | 7 | 6 |
| | P Udvardy | 3 | 6 | 4 | 5 | M Trevisan | 6 | 6 | | | | | | | | |
| | U Eikeri | 6 | 1 | 6 | | U Eikeri | 1 | 1 | | | | | | | | |
| | L Tsurenko | 3 | 6 | 4 | | | | | 5 | M Trevisan | 1 | 4 | | | | |
| | O Danilović | 3 | 6 | 7$^7$ | | | | | 2 | A Rus | 6 | 6 | | | | |
| Q | C Rosatello | 6 | 4 | 6$^5$ | | O Danilović | 2 | 4 | | | | | | | | |
| | E Kostova | 1 | 0 | | 2 | A Rus | 6 | 6 | | | | | | | | |
| 2 | A Rus | 6 | 6 | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Jessika Ponchet (qualified)
* Shalimar Talbi (qualifying competition)
* Zuzana Zlochová (qualifying competition)
* Camilla Rosatello (qualified)

### Qualifiers

* Jessika Ponchet
* Ekaterina Yashina
* Tara Würth
* Camilla Rosatello

### Draw
#### First qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Jessika Ponchet | 6 | 6 | |
| WC | Elena Milovanović | 0 | 2 | |

#### Second qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Shalimar Talbi | 4 | 6 | 1 |
| | Ekaterina Yashina | 6 | 4 | 6 |

#### Third qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Zuzana Zlochová | 0 | 1 | |
| WC | Tara Würth | 6 | 6 | |

#### Fourth qualifier

| Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Camilla Rosatello | 6 | 7$^7$ | |
| | Tamara Čurović | 3 | 6$^5$ | |