# 2019 Mercer Tennis Classic – Singles

Varvara Lepchenko was the defending champion, but retired in the first round against CoCo Vandeweghe.
Katerina Stewart won the title, defeating Shelby Rogers in an all-American final, 6–7$^{(2–7)}$, 6–3, 6–2.

## Seeds

* Astra Sharma (second round)
* Whitney Osuigwe (quarterfinals)
* Stefanie Vögele (quarterfinals)
* Varvara Lepchenko (first round, retired)
* Usue Maitane Arconada (second round)
* Ann Li (second round)
* Caroline Dolehide (second round)
* Mandy Minella (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 | Final |
| WC | Katerina Stewart | 6 | 6 | | | | | |
| | Danielle Lao | 3 | 0 | | | | | |
| | Danielle Lao | 3 | 0 | WC | Katerina Stewart | 6$^2$ | 6 | 6 |
| | | | | | Shelby Rogers | 7$^7$ | 3 | 2 |
| | Shelby Rogers | 6 | 6 | | Shelby Rogers | 7$^7$ | 3 | 2 |
| | Grace Min | 4 | 2 | | | | | |

### 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 | A Sharma | 6 | 6 | | | | | | | | | | | | | | |
| WC | A Yepifanova | 1 | 0 | | 1 | A Sharma | 3 | 6 | 5 | | | | | | | | |
| Q | I Falconi | 6 | 6 | | Q | I Falconi | 6 | 1 | 7 | | | | | | | | |
| | V Grammatikopoulou | 2 | 3 | | | | | | | Q | I Falconi | 4 | 6$^2$ | | | | |
| | H Chang | 6 | 6$^1$ | 2 | | | | | | WC | K Stewart | 6 | 7$^7$ | | | | |
| WC | K Stewart | 0 | 7$^7$ | 6 | WC | K Stewart | 6 | 3 | 6 | | | | | | | | |
| Q | E Pérez Somarriba | 5 | 4 | | 7 | C Dolehide | 4 | 6 | 3 | | | | | | | | |
| 7 | C Dolehide | 7 | 6 | | | | | | | | | | | WC | K Stewart | 6 | 6 |
| 3 | S Vögele | 4 | 6 | 6 | | | | | | | | | | | D Lao | 3 | 0 |
| | G Talabă | 6 | 3 | 0 | 3 | S Vögele | 6 | 6 | | | | | | | | | |
| Q | S Marand | 6 | 6 | | Q | S Marand | 2 | 0 | | | | | | | | | |
| Q | I Neel | 3 | 3 | | | | | | | 3 | S Vögele | 1 | 2 | | | | |
| | J Larsson | 0 | 4 | | | | | | | | D Lao | 6 | 6 | | | | |
| | D Lao | 6 | 6 | | | D Lao | 6 | 6 | | | | | | | | | |
| Q | A Isaeva | 3 | 1 | | 6 | A Li | 2 | 4 | | | | | | | | | |
| 6 | A Li | 6 | 6 | | | | | | | | | | | | | | |

### Bottom 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 |
| 5 | UM Arconada | 6 | 6 | | | | | | | | | | | | |
| | J Fourlis | 2 | 2 | 5 | UM Arconada | 0 | 1 | | | | | | | | |
| | S Rogers | 6 | 6 | | S Rogers | 6 | 6 | | | | | | | | |
| Q | G Price | 4 | 1 | | | | | | | S Rogers | 6 | 6 | | | |
| | M Melnikova | 7 | 6 | | | | | | WC | C Vandeweghe | 0 | 0 | | | |
| | E Perez | 5 | 4 | | M Melnikova | 6$^6$ | 4 | | | | | | | | |
| WC | C Vandeweghe | 3 | | WC | C Vandeweghe | 7$^8$ | 6 | | | | | | | | |
| 4 | V Lepchenko | 4$^r$ | | | | | | | | | | | S Rogers | 6 | 6 |
| 8 | M Minella | 1 | 2 | | | | | | | | | | G Min | 4 | 2 |
| | G Olmos | 6 | 6 | | G Olmos | 3 | 2 | | | | | | | | |
| | G Min | 7 | 6 | | G Min | 6 | 6 | | | | | | | | |
| WC | S Whittle | 5 | 3 | | | | | | | G Min | 6 | 6 | | | |
| Q | E Bolton | 7 | 6 | | | | | | 2 | W Osuigwe | 1 | 3 | | | |
| | A Parks | 5 | 1 | Q | E Bolton | 6 | 4 | 4 | | | | | | | |
| Q | AR Villarreal | 3 | 1 | 2 | W Osuigwe | 2 | 6 | 6 | | | | | | | |
| 2 | W Osuigwe | 6 | 6 | | | | | | | | | | | | |