# 2018 Suzhou Ladies Open – Singles

Sara Errani was the defending champion, but was unable to participate due to a doping suspension.
Zheng Saisai won the title, defeating Jana Čepelová in the final, 7–5, 6–1.

## Seeds

* Zheng Saisai (champion)
* Wang Yafan (second round)
* Zarina Diyas (withdrew)
* Katie Boulter (quarterfinals, retired)
* Luksika Kumkhum (second round)
* Zhu Lin (second round)
* Anhelina Kalinina (semifinals)
* Veronika Kudermetova (first round, retired)

## 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 | Zheng Saisai | 6 | 3 | | | | | |
| | Viktoriya Tomova | 4 | 3$^r$ | | | | | |
| | Viktoriya Tomova | 4 | 3$^r$ | | 1 | Zheng Saisai | 7 | 6 |
| | | | | | Q | Jana Čepelová | 5 | 1 |
| Q | Jana Čepelová | 6$^5$ | 6 | 7$^7$ | Q | Jana Čepelová | 5 | 1 |
| 7 | Anhelina Kalinina | 7$^7$ | 1 | 6$^2$ | | | | |

### Top half

| 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 Zheng | 6 | 6 | | | | | | | | | | | | | |
| WC | Yi Yuan | 0 | 1 | 1 | S Zheng | 6 | 6 | | | | | | | | | |
| | Y Duan | 6 | 6 | | Y Duan | 2 | 4 | | | | | | | | | |
| | C Zhao | 3 | 1 | | | | | | 1 | S Zheng | 6 | 6 | | | | |
| | Ar Rodionova | 6 | 6 | | | | | | | Ar Rodionova | 2 | 1 | | | | |
| WC | Z Yang | 3 | 2 | | Ar Rodionova | 6 | 6 | | | | | | | | | |
| | K Thandi | 0 | 0 | 6 | L Zhu | 2 | 4 | | | | | | | | | |
| 6 | L Zhu | 6 | 6 | | | | | | | | | | 1 | S Zheng | 6 | 3 |
| 4 | K Boulter | 6 | 6 | | | | | | | | | | | V Tomova | 4 | 3$^r$ |
| | M Doi | 4 | 2 | 4 | K Boulter | 6 | 6 | | | | | | | | | |
| | Jia Lu | 6 | 6 | | Jia Lu | 2 | 2 | | | | | | | | | |
| LL | X Jiang | 1 | 0 | | | | | | 4 | K Boulter | 4 | 0$^r$ | | | | |
| | K Swan | 6 | 7 | | | | | | | V Tomova | 6 | 0 | | | | |
| WC | J Ren | 4 | 5 | | K Swan | 3 | 7$^7$ | 3 | | | | | | | | |
| | V Tomova | 6 | 3 | | V Tomova | 6 | 6$^4$ | 6 | | | | | | | | |
| 8 | V Kudermetova | 4 | 0$^r$ | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals |
| 5 | L Kumkhum | 4 | 6 | 6 | | | | | | | | | | | | | | | |
| Q | F Al-Nabhani | 6 | 2 | 4 | 5 | L Kumkhum | 3 | 3 | | | | | | | | | | | |
| | A Raina | 1 | 2 | | Q | J Čepelová | 6 | 6 | | | | | | | | | | | |
| Q | J Čepelová | 6 | 6 | | | | | | | Q | J Čepelová | 4 | 7 | 6 | | | | | |
| | N Hibino | 6$^6$ | 6 | 6 | | | | | | | N Hibino | 6 | 5 | 3 | | | | | |
| | B Krejčíková | 7$^8$ | 3 | 4 | | N Hibino | 7$^7$ | 6 | | | | | | | | | | | |
| | F Liu | 2 | 0 | | Q | P Plipuech | 6$^1$ | 4 | | | | | | | | | | | |
| Q | P Plipuech | 6 | 6 | | | | | | | | | | | | Q | J Čepelová | 6$^5$ | 6 | 7$^7$ |
| 7 | A Kalinina | 7$^7$ | 6 | | | | | | | | | | | | 7 | A Kalinina | 7$^7$ | 1 | 6$^2$ |
| | F Xun | 6$^2$ | 0 | | 7 | A Kalinina | 6 | 6 | | | | | | | | | | | |
| LL | H Kaji | 3 | 6 | 6 | LL | H Kaji | 1 | 0 | | | | | | | | | | | |
| | J Glushko | 6 | 4 | 3 | | | | | | 7 | A Kalinina | 6$^6$ | 6 | 0 | | | | | |
| WC | K Zhang | 6 | 2 | 5 | | | | | | | X Han | 7$^8$ | 1 | 0$^r$ | | | | | |
| | X Han | 1 | 6 | 7 | | X Han | 6 | 6$^4$ | 6 | | | | | | | | | | |
| Q | G Dabrowski | 2 | 3 | | 2 | Y Wang | 3 | 7$^7$ | 4 | | | | | | | | | | |
| 2 | Y Wang | 6 | 6 | | | | | | | | | | | | | | | | |