# 2018 Jin'an Open – Singles

Zhu Lin was the defending champion and successfully defended her title, defeating Liu Fangzhou in the final, 6–0, 6–2.

## Seeds

* Zhu Lin (champion)
* Liu Fangzhou (final)
* Ankita Raina (quarterfinals)
* Harriet Dart (semifinals)
* Karman Thandi (quarterfinals)
* Xun Fangying (semifinals)
* Erika Sema (quarterfinals)
* Mai Minokoshi (quarterfinals)

## 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 | Zhu Lin | 1 | 6 | 6 | | | | |
| 4 | Harriet Dart | 6 | 4 | 3 | | | | |
| 4 | Harriet Dart | 6 | 4 | 3 | 1 | Zhu Lin | 6 | 6 |
| | | | | | 2 | Liu Fangzhou | 0 | 2 |
| 6 | Xun Fangying | 6$^4$ | 1 | | 2 | Liu Fangzhou | 0 | 2 |
| 2 | Liu Fangzhou | 7$^7$ | 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 | Semifinals |
| 1 | L Zhu | 6 | 6 | | | | | | | | | | | | | | | | |
| | S Feng | 3 | 2 | | 1 | L Zhu | 7$^7$ | 6 | | | | | | | | | | | |
| | A Naydenova | 4 | 5 | | | Yu Yuan | 6$^5$ | 3 | | | | | | | | | | | |
| | Yu Yuan | 6 | 7 | | | | | | | 1 | L Zhu | 5 | 6 | 6 | | | | | |
| | E Webley-Smith | 6 | 3 | 6$^4$ | | | | | | 8 | M Minokoshi | 7 | 4 | 4 | | | | | |
| Q | X Jiang | 4 | 6 | 7$^7$ | Q | X Jiang | 4 | 2 | | | | | | | | | | | |
| | N Kukharchuk | 2 | 4 | | 8 | M Minokoshi | 6 | 6 | | | | | | | | | | | |
| 8 | M Minokoshi | 6 | 6 | | | | | | | | | | | | 1 | L Zhu | 1 | 6 | 6 |
| 4 | H Dart | 6 | 6 | | | | | | | | | | | | 4 | H Dart | 6 | 4 | 3 |
| Q | Q Tang | 2 | 3 | | 4 | H Dart | 6 | 6 | | | | | | | | | | | |
| | W Zheng | 6 | 7$^7$ | | | W Zheng | 3 | 1 | | | | | | | | | | | |
| | J Kang | 3 | 6$^3$ | | | | | | | 4 | H Dart | 2 | 6 | 6 | | | | | |
| | Y Zhang | 6 | 6 | | | | | | | 5 | K Thandi | 6 | 2 | 3 | | | | | |
| Q | C Yuan | 2 | 1 | | | Y Zhang | 4 | 7 | 1 | | | | | | | | | | |
| | X Sun | 3 | 2 | | 5 | K Thandi | 6 | 5 | 6 | | | | | | | | | | |
| 5 | K Thandi | 6 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | F Xun | 6 | 6 | | | | | | | | | | | | | | |
| | S Guo | 2 | 1 | | 6 | F Xun | 6 | 6 | | | | | | | | | |
| WC | Q Zhao | 1 | 3 | | | M Ninomiya | 1 | 2 | | | | | | | | | |
| | M Ninomiya | 6 | 6 | | | | | | 6 | F Xun | 6$^5$ | 6 | 7$^7$ | | | | |
| | H Guo | 6$^2$ | 6 | 6 | | | | | 3 | A Raina | 7$^7$ | 3 | 6$^3$ | | | | |
| WC | Y Liu | 7$^7$ | 4 | 1 | | H Guo | 4 | 5 | | | | | | | | | |
| | A Gai | 1 | 6$^6$ | | 3 | A Raina | 6 | 7 | | | | | | | | | |
| 3 | A Raina | 6 | 7$^8$ | | | | | | | | | | | 6 | F Xun | 6$^4$ | 1 |
| 7 | E Sema | 7 | 4 | 6 | | | | | | | | | | 2 | F Liu | 7$^7$ | 6 |
| | X You | 5 | 6 | 3 | 7 | E Sema | 7 | 6 | | | | | | | | | |
| WC | M Wang | 6 | 6 | | WC | M Wang | 5 | 3 | | | | | | | | | |
| | K Zhang | 1 | 3 | | | | | | 7 | E Sema | 4 | 2 | | | | | |
| | Z Wei | 2 | 2 | | | | | | 2 | F Liu | 6 | 6 | | | | | |
| | S Xu | 6 | 6 | | | S Xu | 4 | 4 | | | | | | | | | |
| Q | Z Sun | 2 | 2 | | 2 | F Liu | 6 | 6 | | | | | | | | | |
| 2 | F Liu | 6 | 6 | | | | | | | | | | | | | | |