# 2019 Innisbrook Open – Singles

Katerina Stewart was the defending champion, having won the previous edition 2015, but chose not to participate.
Barbora Krejčíková won the title, defeating Nicole Gibbs in the final, 6–0, 6–1.

## Seeds

* Nicole Gibbs (final)
* Kurumi Nara (quarterfinals)
* Danka Kovinić (semifinals)
* Whitney Osuigwe (quarterfinals)
* Barbora Krejčíková (champion)
* Ellen Perez (quarterfinals)
* Jasmine Paolini (first round)
* Elitsa Kostova (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 | Nicole Gibbs | 6 | 4 | 6 | | | | |
| 3 | Danka Kovinić | 1 | 6 | 2 | | | | |
| 3 | Danka Kovinić | 1 | 6 | 2 | 1 | Nicole Gibbs | 0 | 1 |
| | | | | | 5 | Barbora Krejčíková | 6 | 6 |
| 5 | Barbora Krejčíková | 7 | 6 | | 5 | Barbora Krejčíková | 6 | 6 |
| | Panna Udvardy | 5 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | N Gibbs | 6 | 7$^7$ | | | | | | | | | | | | | | | | |
| | A Myers | 2 | 6$^5$ | | 1 | N Gibbs | 6 | 3 | 7 | | | | | | | | | | |
| | Q Gleason | 6 | 2 | 3 | | G Dabrowski | 4 | 6 | 5 | | | | | | | | | | |
| | G Dabrowski | 4 | 6 | 6 | | | | | | 1 | N Gibbs | 6 | 6 | | | | | | |
| | I Wallace | 0$^r$ | | | | | | | | 6 | E Perez | 1 | 3 | | | | | | |
| Q | L Pigossi | 3 | | | Q | L Pigossi | 4 | 4 | | | | | | | | | | | |
| Q | A Amanmuradova | 0 | 2 | | 6 | E Perez | 6 | 6 | | | | | | | | | | | |
| 6 | E Perez | 6 | 6 | | | | | | | | | | | | 1 | N Gibbs | 6 | 4 | 6 |
| 3 | D Kovinić | 6$^5$ | 7 | 6 | | | | | | | | | | | 3 | D Kovinić | 1 | 6 | 2 |
| | S Chang | 7$^7$ | 5 | 2 | 3 | D Kovinić | 6 | 6 | | | | | | | | | | | |
| WC | P Montez | 7$^7$ | 4 | 7 | WC | P Montez | 3 | 1 | | | | | | | | | | | |
| | L Cabrera | 6$^5$ | 6 | 5 | | | | | | 3 | D Kovinić | 7$^7$ | 3 | 6 | | | | | |
| Q | E Fanning | 2 | 4 | | | | | | | 8 | E Kostova | 6$^4$ | 6 | 2 | | | | | |
| | M Hončová | 6 | 6 | | | M Hončová | 2 | 5 | | | | | | | | | | | |
| Q | S Carrington | 0 | 3 | | 8 | E Kostova | 6 | 7 | | | | | | | | | | | |
| 8 | E Kostova | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | B Krejčíková | 5 | 6 | 6 | | | | | | | | | | | | |
| Q | I Neel | 7 | 2 | 0 | 5 | B Krejčíková | 6 | 6 | | | | | | | | |
| | S Marand | 6 | 7 | | | S Marand | 2 | 2 | | | | | | | | |
| | A Danilina | 1 | 5 | | | | | | 5 | B Krejčíková | 6 | 6 | | | | |
| WC | A Parks | 4 | 7$^7$ | 3 | | | | | 4 | W Osuigwe | 2 | 4 | | | | |
| | M Kilnarová | 6 | 6$^3$ | 6 | | M Kilnarová | 0 | 3 | | | | | | | | |
| LL | H Arakawa | 2 | 4 | | 4 | W Osuigwe | 6 | 6 | | | | | | | | |
| 4 | W Osuigwe | 6 | 6 | | | | | | | | | | 5 | B Krejčíková | 7 | 6 |
| 7 | J Paolini | 6$^2$ | 3 | | | | | | | | | | | P Udvardy | 5 | 2 |
| | C Paquet | 7$^7$ | 6 | | | C Paquet | 1 | 4 | | | | | | | | |
| | P Udvardy | 6 | 6 | | | P Udvardy | 6 | 6 | | | | | | | | |
| Q | A Nefedova | 3 | 4 | | | | | | | P Udvardy | 6 | 6 | | | | |
| | M Osaka | 6 | 7$^8$ | | | | | | 2 | K Nara | 2 | 3 | | | | |
| | U Radwańska | 1 | 6$^6$ | | | M Osaka | 6$^5$ | 4 | | | | | | | | |
| | UM Arconada | 4 | 6 | 2 | 2 | K Nara | 7$^7$ | 6 | | | | | | | | |
| 2 | K Nara | 6 | 4 | 6 | | | | | | | | | | | | |