# 2018 J&T Banka Prague Open – Singles

Mona Barthel was the defending champion, but lost in the first round to Antonia Lottner.
Petra Kvitová won the title, defeating Mihaela Buzărnescu in the final, 4–6, 6–2, 6–3.

## Seeds

* Karolína Plíšková (withdrew)
* Petra Kvitová (champion)
* Daria Kasatkina (first round)
* Daria Gavrilova (first round, retired)
* Barbora Strýcová (first round)
* Zhang Shuai (semifinals)
* Mihaela Buzărnescu (final)
* Kateřina Siniaková (quarterfinals)
* Aliaksandra Sasnovich (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 | Semifinals | Final | Final | Final | Final | Final |
| 7 | Mihaela Buzărnescu | 4 | 6 | 7 | | | | | |
| | Camila Giorgi | 6 | 3 | 5 | | | | | |
| | Camila Giorgi | 6 | 3 | 5 | 7 | Mihaela Buzărnescu | 6 | 2 | 3 |
| | | | | | 2 | Petra Kvitová | 4 | 6 | 6 |
| 6 | Zhang Shuai | 6$^6$ | 0 | | 2 | Petra Kvitová | 4 | 6 | 6 |
| 2 | Petra Kvitová | 7$^8$ | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | A Sasnovich | 6$^5$ | 3 | | | | | | | | | | | | | | |
| | Kr Plíšková | 7$^7$ | 6 | | | Kr Plíšková | 6 | 7$^7$ | | | | | | | | | |
| | V Kužmová | 6$^4$ | 1 | | | Q Wang | 2 | 6$^3$ | | | | | | | | | |
| | Q Wang | 7$^7$ | 6 | | | | | | | Kr Plíšková | 2 | 3 | | | | | |
| | M Barthel | 0 | 5 | | | | | | 7 | M Buzărnescu | 6 | 6 | | | | | |
| Q | A Lottner | 6 | 7 | | Q | A Lottner | 0 | 6$^7$ | | | | | | | | | |
| | B Haddad Maia | 1 | 5 | | 7 | M Buzărnescu | 6 | 7$^9$ | | | | | | | | | |
| 7 | M Buzărnescu | 6 | 7 | | | | | | | | | | 7 | M Buzărnescu | 4 | 6 | 7 |
| 4 | D Gavrilova | 3 | 6 | 0$^r$ | | | | | | | | | | C Giorgi | 6 | 3 | 5 |
| | S Stosur | 6 | 4 | 0 | | S Stosur | 6 | 6 | | | | | | | | | |
| | D Allertová | 6 | 6 | | | D Allertová | 4 | 4 | | | | | | | | | |
| Q | P Schnyder | 4 | 4 | | | | | | | S Stosur | 2 | 3 | | | | | |
| LL | T Korpatsch | 6 | 7 | | | | | | | C Giorgi | 6 | 6 | | | | | |
| | O Dodin | 2 | 5 | | LL | T Korpatsch | 4 | 2 | | | | | | | | | |
| | C Giorgi | 6 | 2 | 6 | | C Giorgi | 6 | 6 | | | | | | | | | |
| 5 | B Strýcová | 0 | 6 | 2 | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | S Zhang | 6 | 7 | | | | | | | | | | | | | | |
| Q | S Vögele | 4 | 5 | | 6 | S Zhang | 6 | 6 | | | | | | | | | |
| Q | E-G Ruse | 2 | 6 | 7 | Q | E-G Ruse | 4 | 4 | | | | | | | | | |
| | B Pera | 6 | 1 | 5 | | | | | | 6 | S Zhang | 6 | 6 | | | | |
| | H Watson | 1 | 3 | | | | | | | LL | J Paolini | 4 | 3 | | | | |
| WC | AK Schmiedlová | 6 | 6 | | WC | AK Schmiedlová | 4 | 1 | | | | | | | | | |
| LL | J Paolini | 7$^8$ | 6 | | LL | J Paolini | 6 | 6 | | | | | | | | | |
| 3/WC | D Kasatkina | 6$^6$ | 3 | | | | | | | | | | | 6 | S Zhang | 6$^6$ | 0 |
| 8 | K Siniaková | 6 | 7$^7$ | | | | | | | | | | | 2 | P Kvitová | 7$^8$ | 6 |
| | A Petkovic | 2 | 6$^4$ | | 8 | K Siniaková | 6 | 3 | 6 | | | | | | | | |
| | E Alexandrova | 7$^7$ | 6 | | | E Alexandrova | 4 | 6 | 3 | | | | | | | | |
| | R Hogenkamp | 6$^5$ | 1 | | | | | | | 8 | K Siniaková | 3 | 3 | | | | |
| | N Vikhlyantseva | 6 | 6 | | | | | | | 2 | P Kvitová | 6 | 6 | | | | |
| | C Witthöft | 4 | 4 | | | N Vikhlyantseva | 3 | 1 | | | | | | | | | |
| WC | T Smitková | 1 | 3 | | 2 | P Kvitová | 6 | 6 | | | | | | | | | |
| 2 | P Kvitová | 6 | 6 | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Stefanie Vögele (qualified)
* Miyu Kato (first round)
* Tamara Korpatsch (qualifying competition, lucky loser)
* Jasmine Paolini (qualifying competition, lucky loser)
* Anna Kalinskaya (first round, retired)
* Patty Schnyder (qualified)
* Antonia Lottner (qualified)
* Marta Kostyuk (first round)

### Qualifiers

* Stefanie Vögele
* Elena-Gabriela Ruse
* Patty Schnyder
* Antonia Lottner

### Lucky losers

* Tamara Korpatsch
* Jasmine Paolini

### Draw
#### First qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Stefanie Vögele | 6 | 6 | | | | | | | | | |
| | Valentyna Ivakhnenko | 0 | 2 | | | | | | | | | |
| | Valentyna Ivakhnenko | 0 | 2 | | 1 | Stefanie Vögele | 6 | 6 | | | | |
| | | | | | | Misaki Doi | 4 | 2 | | | | |
| | Diāna Marcinkēviča | 4 | 7 | 1 | | Misaki Doi | 4 | 2 | | | | |
| | Misaki Doi | 6 | 5 | 6 | | | | | | | | |
| | Misaki Doi | 6 | 5 | 6 | | | | | 1 | Stefanie Vögele | 6 | 6 |
| | | | | | | | | | | Anastasia Zarycká | 4 | 2 |
| PR | Réka Luca Jani | 2 | 3 | | | | | | | | | | Anastasia Zarycká | 4 | 2 |
| | Priscilla Hon | 6 | 6 | | | | | | | | | |
| | Priscilla Hon | 6 | 6 | | | Priscilla Hon | 4 | 4 | | | | |
| | | | | | | Anastasia Zarycká | 6 | 6 | | | | |
| | Anastasia Zarycká | 3 | 6 | 1 | | Anastasia Zarycká | 6 | 6 | | | | |
| 5 | Anna Kalinskaya | 6 | 2 | 0$^r$ | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Miyu Kato | 4 | 2 | | | | | | | |
| | Tereza Martincová | 6 | 6 | | | | | | | |
| | Tereza Martincová | 6 | 6 | | Tereza Martincová | 7 | 6 | | | |
| | | | | | Deborah Chiesa | 5 | 3 | | | |
| | Deborah Chiesa | 5 | 6 | 6 | Deborah Chiesa | 5 | 3 | | | |
| WC | Miriam Kolodziejová | 7 | 2 | 2 | | | | | | |
| WC | Miriam Kolodziejová | 7 | 2 | 2 | | | | Tereza Martincová | 2 | 6$^2$ |
| | | | | | | | | Elena-Gabriela Ruse | 6 | 7$^7$ |
| WC | Karolína Beránková | 5 | 1 | | | | | | | | Elena-Gabriela Ruse | 6 | 7$^7$ |
| | Viktoriya Tomova | 7 | 6 | | | | | | | |
| | Viktoriya Tomova | 7 | 6 | | Viktoriya Tomova | 2 | 6$^6$ | | | |
| | | | | | Elena-Gabriela Ruse | 6 | 7$^8$ | | | |
| | Elena-Gabriela Ruse | 2 | 7 | 6 | Elena-Gabriela Ruse | 6 | 7$^8$ | | | |
| 8 | Marta Kostyuk | 6 | 5 | 3 | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Tamara Korpatsch | 6 | 2 | 6 | | | | | | | | | |
| | Michaela Hončová | 3 | 6 | 3 | | | | | | | | | |
| | Michaela Hončová | 3 | 6 | 3 | 3 | Tamara Korpatsch | 6 | 3 | 6 | | | | |
| | | | | | PR | Rebecca Šramková | 4 | 6 | 4 | | | | |
| | Tessah Andrianjafitrimo | 3 | 2 | | PR | Rebecca Šramková | 4 | 6 | 4 | | | | |
| PR | Rebecca Šramková | 6 | 6 | | | | | | | | | | |
| PR | Rebecca Šramková | 6 | 6 | | | | | | | 3 | Tamara Korpatsch | 1 | 5 |
| | | | | | | | | | | 6 | Patty Schnyder | 6 | 7 |
| WC | Aneta Kladivová | 2 | 1 | | | | | | | | | | | 6 | Patty Schnyder | 6 | 7 |
| | Marina Melnikova | 6 | 6 | | | | | | | | | | |
| | Marina Melnikova | 6 | 6 | | | Marina Melnikova | 3 | 5 | | | | | |
| | | | | | 6 | Patty Schnyder | 6 | 7 | | | | | |
| | Marie Bouzková | 2 | 1 | | 6 | Patty Schnyder | 6 | 7 | | | | | |
| 6 | Patty Schnyder | 6 | 6 | | | | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Jasmine Paolini | 6 | 6 | | | | | | | | |
| Alt | Shuko Aoyama | 1 | 3 | | | | | | | | |
| Alt | Shuko Aoyama | 1 | 3 | 4 | Jasmine Paolini | 6 | 6 | | | | |
| | | | | | Ulrikke Eikeri | 3 | 0 | | | | |
| | Chantal Škamlová | 1 | 3 | | Ulrikke Eikeri | 3 | 0 | | | | |
| | Ulrikke Eikeri | 6 | 6 | | | | | | | | |
| | Ulrikke Eikeri | 6 | 6 | | | | | 4 | Jasmine Paolini | 3 | 5 |
| | | | | | | | | 7 | Antonia Lottner | 6 | 7 |
| | Jesika Malečková | 3 | 4 | | | | | | | | | 7 | Antonia Lottner | 6 | 7 |
| WC | Barbora Štefková | 6 | 6 | | | | | | | | |
| WC | Barbora Štefková | 6 | 6 | WC | Barbora Štefková | 2 | 0 | | | | |
| | | | | 7 | Antonia Lottner | 6 | 6 | | | | |
| | Petra Krejsová | 4 | 3 | 7 | Antonia Lottner | 6 | 6 | | | | |
| 7 | Antonia Lottner | 6 | 6 | | | | | | | | |