# 2021 Al Habtoor Tennis Challenge – Singles

Sorana Cîrstea was the defending champion but chose not to participate.
Daria Snigur won the title, defeating Kristína Kučová in the final, 6–3, 6–0.

## Seeds

* Zhang Shuai (second round)
* Zheng Saisai (first round)
* Wang Xinyu (first round)
* Kristína Kučová (final)
* Ana Bogdan (first round)
* Viktoriya Tomova (second round)
* Lesia Tsurenko (second round, retired)
* Polona Hercog (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 |
| | Anastasia Gasanova | 6 | 1 | 3 | | | | |
| | Daria Snigur | 4 | 6 | 6 | | | | |
| | Daria Snigur | 4 | 6 | 6 | | Daria Snigur | 6 | 6 |
| | | | | | 4 | Kristína Kučová | 3 | 0 |
| 4 | Kristína Kučová | 7$^{10}$ | 6 | | 4 | Kristína Kučová | 3 | 0 |
| | Aleksandra Krunić | 6$^8$ | 0 | | | | | |

### 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 | S Zhang | 6 | 7$^8$ | | | | | | | | | | | | | | |
| | A Raina | 1 | 6$^6$ | | 1 | S Zhang | 7$^7$ | 1 | 4 | | | | | | | | |
| | Q Zheng | 6 | 7 | | | Q Zheng | 6$^5$ | 6 | 6 | | | | | | | | |
| Q | N Bains | 1 | 5 | | | | | | | Q Zheng | 1 | 3 | | | | | |
| WC | A Danilina | 1 | 4 | | | | | | | A Gasanova | 6 | 6 | | | | | |
| | A Gasanova | 6 | 6 | | | A Gasanova | 4 | 6 | 4 | | | | | | | | |
| WC | L Glushko | 3 | 5 | | 7 | L Tsurenko | 6 | 4 | 0$^r$ | | | | | | | | |
| 7 | L Tsurenko | 6 | 7 | | | | | | | | | | | A Gasanova | 6 | 1 | 3 |
| 3 | Xin Wang | 0 | 7$^7$ | 1 | | | | | | | | | | D Snigur | 4 | 6 | 6 |
| | D Snigur | 6 | 6$^5$ | 6 | | D Snigur | 6 | 6 | | | | | | | | | |
| Q | A Mitu | 3 | 0 | | Q | J Grabher | 0 | 1 | | | | | | | | | |
| Q | J Grabher | 6 | 6 | | | | | | | D Snigur | 6 | 6$^4$ | 6 | | | | |
| | V Kužmová | 5 | 6 | 6 | | | | | | V Kužmová | 3 | 7$^7$ | 0 | | | | |
| | M Hontama | 7 | 3 | 3 | | V Kužmová | 6 | 4 | 7 | | | | | | | | |
| | L Pattinama Kerkhove | 4 | 6 | 1 | 6 | V Tomova | 2 | 6 | 5 | | | | | | | | |
| 6 | V Tomova | 6 | 4 | 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 |
| 8 | P Hercog | 1 | 6 | 6 | | | | | | | | | | | | |
| WC | S Samir | 6 | 3 | 1 | 8 | P Hercog | 3 | 3 | | | | | | | | |
| | N Vikhlyantseva | 3 | 6 | 3 | PR | V Diatchenko | 6 | 6 | | | | | | | | |
| PR | V Diatchenko | 6 | 2 | 6 | | | | | PR | V Diatchenko | 6$^4$ | 6$^1$ | | | | |
| | Y Hatouka | 6 | 7$^8$ | | | | | | 4 | K Kučová | 7$^7$ | 7$^7$ | | | | |
| Q | K Bondarenko | 2 | 6$^6$ | | | Y Hatouka | 4 | 1 | | | | | | | | |
| WC | W Falkowska | 1 | 2 | | 4 | K Kučová | 6 | 6 | | | | | | | | |
| 4 | K Kučová | 6 | 6 | | | | | | | | | | 4 | K Kučová | 7$^{10}$ | 6 |
| 5 | A Bogdan | 6 | 6$^4$ | 0 | | | | | | | | | | A Krunić | 6$^8$ | 0 |
| | A Krunić | 4 | 7$^7$ | 6 | | A Krunić | 6 | 6 | | | | | | | | |
| Q | IG Ghioroaie | 2 | 6 | 6 | Q | IG Ghioroaie | 1 | 2 | | | | | | | | |
| Q | A Sutjiadi | 6 | 2 | 3 | | | | | | A Krunić | 6 | 6 | | | | |
| | M Hibi | 4 | 6 | 6 | | | | | Q | I Shinikova | 1 | 2 | | | | |
| Q | O Selekhmeteva | 6 | 4 | 4 | | M Hibi | 4 | 3 | | | | | | | | |
| Q | I Shinikova | 6 | 7$^{11}$ | | Q | I Shinikova | 6 | 6 | | | | | | | | |
| 2 | S Zheng | 2 | 6$^9$ | | | | | | | | | | | | | |