# 2018 Kentucky Bank Tennis Championships – Women's singles

Grace Min was the defending champion, but lost in the first round to Asia Muhammad.
Muhammad went on to win the title, defeating Ann Li in the final, 7–5, 6–1.

## Seeds

* Arantxa Rus (second round)
* Arina Rodionova (second round)
* Lizette Cabrera (first round)
* Marie Bouzková (quarterfinals)
* Grace Min (first round)
* Gabriella Taylor (second round)
* Julia Glushko (second round)
* Jaimee Fourlis (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 |
| WC | Quinn Gleason | 4 | 4 | | | | | |
| | Asia Muhammad | 6 | 6 | | | | | |
| | Asia Muhammad | 6 | 6 | | | Asia Muhammad | 7 | 6 |
| | | | | | WC | Ann Li | 5 | 1 |
| PR | Jessica Pegula | 6 | 3 | 4 | WC | Ann Li | 5 | 1 |
| WC | Ann Li | 2 | 6 | 6 | | | | |

### 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 | A Rus | 6 | 6 | | | | | | | | | | | | | | |
| | E Hozumi | 4 | 4 | | 1 | A Rus | 3 | 3 | | | | | | | | | |
| | J Ponchet | 6 | 6 | | | J Ponchet | 6 | 6 | | | | | | | | | |
| | V Duval | 4 | 4 | | | | | | | J Ponchet | 3 | 6 | 1 | | | | |
| | A Tere-Apisah | 3 | 5 | | | | | | WC | Q Gleason | 6 | 3 | 6 | | | | |
| WC | Q Gleason | 6 | 7 | | WC | Q Gleason | 7 | 6 | | | | | | | | | |
| | C Simmonds | 6 | 4 | 4 | 8 | J Fourlis | 5 | 4 | | | | | | | | | |
| 8 | J Fourlis | 4 | 6 | 6 | | | | | | | | | | WC | Q Gleason | 4 | 4 |
| 4 | M Bouzková | 3 | 6 | 6 | | | | | | | | | | | A Muhammad | 6 | 6 |
| Q | S Marand | 6 | 2 | 4 | 4 | M Bouzková | 6 | 6 | | | | | | | | | |
| | E Bektas | 4 | 4 | | WC | J Elie | 0 | 3 | | | | | | | | | |
| WC | J Elie | 6 | 6 | | | | | | 4 | M Bouzková | 5 | 7 | 3 | | | | |
| Q | K Shaffer | 6 | 6 | | | | | | | A Muhammad | 7 | 5 | 6 | | | | |
| SE | G Brodsky | 3 | 3 | | Q | K Shaffer | 1 | 1 | | | | | | | | | |
| | A Muhammad | 2 | 6 | 6 | | A Muhammad | 6 | 6 | | | | | | | | | |
| 5 | G Min | 6 | 1 | 3 | | | | | | | | | | | | | |

### 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 |
| 6 | G Taylor | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | P Stearns | 3 | 3 | | 6 | G Taylor | 3 | 6$^2$ | | | | | | | | | | | |
| PR | J Pegula | 6 | 1 | 6 | PR | J Pegula | 6 | 7$^7$ | | | | | | | | | | | |
| | M Doi | 4 | 6 | 2 | | | | | | PR | J Pegula | 6 | 5 | 7 | | | | | |
| Q | A Bai | 1 | 4 | | | | | | | | K Dunne | 2 | 7 | 5 | | | | | |
| | K Dunne | 6 | 6 | | | K Dunne | 7$^7$ | 6 | | | | | | | | | | | |
| | A Sharma | 6 | 6 | | | A Sharma | 6$^5$ | 3 | | | | | | | | | | | |
| 3 | L Cabrera | 2 | 0 | | | | | | | | | | | | PR | J Pegula | 6 | 3 | 4 |
| 7 | J Glushko | 6 | 1 | 7 | | | | | | | | | | | WC | A Li | 2 | 6 | 6 |
| | K Birrell | 4 | 6 | 5 | 7 | J Glushko | 5 | 6 | 4 | | | | | | | | | | |
| | R Zarazúa | 4 | 0 | | WC | A Li | 7 | 3 | 6 | | | | | | | | | | |
| WC | A Li | 6 | 6 | | | | | | | WC | A Li | 6 | 6 | | | | | | |
| | V Rodríguez | 2 | 2 | | | | | | | Q | A Nefedova | 2 | 2 | | | | | | |
| Q | A Nefedova | 6 | 6 | | Q | A Nefedova | 7$^7$ | 2 | 6 | | | | | | | | | | |
| | E Perez | 1 | 6 | 2 | 2 | Ar Rodionova | 6$^3$ | 6 | 3 | | | | | | | | | | |
| 2 | Ar Rodionova | 6 | 3 | 6 | | | | | | | | | | | | | | | |