2019 Thailand Open – Singles
| Singles | |
|---|---|
| 2019 Thailand Open | |
| Champion |  Dayana Yastremska | 
| Runner-up | .svg.png) Ajla Tomljanović | 
| Score | 6–2, 2–6, 7–6(7–3) | 
| Draw | 32 (6 Q / 4 WC ) | 
| Seeds | 8 | 
Belinda Bencic was the champion the last time the event was held in 2017, but chose to compete in St. Petersburg instead.
Dayana Yastremska won the title, defeating Ajla Tomljanović in the final, 6–2, 2–6, 7–6(7–3).
Seeds
 Garbiñe Muguruza (quarterfinals) Garbiñe Muguruza (quarterfinals)
 Caroline Garcia (first round) Caroline Garcia (first round)
 Hsieh Su-wei (first round) Hsieh Su-wei (first round)
 Zheng Saisai (quarterfinals) Zheng Saisai (quarterfinals)
 Zhang Shuai (second round, retired) Zhang Shuai (second round, retired)
.svg.png) Ajla Tomljanović (final) Ajla Tomljanović (final)
 Pauline Parmentier (first round) Pauline Parmentier (first round)
 Dayana Yastremska (champion) Dayana Yastremska (champion)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
Finals
| Semifinals | Final | ||||||||||||
| 8 |  Dayana Yastremska | 6 | 6 | ||||||||||
|  Magda Linette | 4 | 3 | |||||||||||
| 8 |  Dayana Yastremska | 6 | 2 | 77 | |||||||||
| 6 | .svg.png) Ajla Tomljanović | 2 | 6 | 63 | |||||||||
| 6 | .svg.png) Ajla Tomljanović | 6 | 6 | ||||||||||
|  Tamara Zidanšek | 4 | 1 | |||||||||||
Top half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 |  G Muguruza | 6 | 6 | ||||||||||||||||||||||||
| WC |  S Lisicki | 3 | 4 | 1 |  G Muguruza | 6 | 7 | ||||||||||||||||||||
|  M Barthel | 6 | 1 | 6 |  M Barthel | 3 | 5 | |||||||||||||||||||||
|  F Ferro | 1 | 6 | 4 | 1 |  G Muguruza | 65 | 1 | ||||||||||||||||||||
| WC |  S Peng | 6 | 6 | 8 |  D Yastremska | 77 | 6 | ||||||||||||||||||||
| Q |  C Paquet | 2 | 3 | WC |  S Peng | 1 | 4 | ||||||||||||||||||||
| Q |  A Rus | 0 | 3 | 8 |  D Yastremska | 6 | 6 | ||||||||||||||||||||
| 8 |  D Yastremska | 6 | 6 | 8 |  D Yastremska | 6 | 6 | ||||||||||||||||||||
| 3 |  S-w Hsieh | 4 | 62 |  M Linette | 4 | 3 | |||||||||||||||||||||
|  M Niculescu | 6 | 77 |  M Niculescu | 6 | 3 | 2 | |||||||||||||||||||||
| Q | .svg.png) P Hon | 1 | 6 | 2 |  M Linette | 4 | 6 | 6 | |||||||||||||||||||
|  M Linette | 6 | 2 | 6 |  M Linette | 6 | 6 | |||||||||||||||||||||
|  A Blinkova | 7 | 2 | 1 |  Y Wang | 2 | 3 | |||||||||||||||||||||
|  Y Wang | 5 | 6 | 6 |  Y Wang | 4 | ||||||||||||||||||||||
|  L Kumkhum | 2 | 1 | 5 |  S Zhang | 1r | ||||||||||||||||||||||
| 5 |  S Zhang | 6 | 6 | ||||||||||||||||||||||||
Bottom half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | .svg.png) A Tomljanović | 6 | 78 | ||||||||||||||||||||||||
| .svg.png) S Vögele | 1 | 66 | 6 | .svg.png) A Tomljanović | 77 | 6 | |||||||||||||||||||||
| Q | .svg.png) C Perrin | 4 | 6 | 3 |  K Kozlova | 60 | 1 | ||||||||||||||||||||
|  K Kozlova | 6 | 3 | 6 | 6 | .svg.png) A Tomljanović | 6 | 6 | ||||||||||||||||||||
|  I-C Begu | 6 | 6 | 4 |  S Zheng | 1 | 3 | |||||||||||||||||||||
|  E Rodina | 2 | 0 |  I-C Begu | 2 | 4 | ||||||||||||||||||||||
|  M Minella | 710 | 4 | 4 | 4 |  S Zheng | 6 | 6 | ||||||||||||||||||||
| 4 |  S Zheng | 68 | 6 | 6 | 6 | .svg.png) A Tomljanović | 6 | 6 | |||||||||||||||||||
| 7 |  P Parmentier | 6 | 3 | 4 |  T Zidanšek | 4 | 1 | ||||||||||||||||||||
| Q |  Y Duan | 1 | 6 | 6 | Q |  Y Duan | 64 | 5 | |||||||||||||||||||
| .svg.png) V Golubic | 6 | 6 | .svg.png) V Golubic | 77 | 7 | ||||||||||||||||||||||
|  S Sorribes Tormo | 2 | 4 | .svg.png) V Golubic | 6 | 1 | 2 | |||||||||||||||||||||
|  T Zidanšek | 6 | 3 |  T Zidanšek | 4 | 6 | 6 | |||||||||||||||||||||
|  T Babos | 0 | 1r |  T Zidanšek | 6 | 0 | 711 | |||||||||||||||||||||
| Q |  J Brady | 6 | 77 | Q |  J Brady | 3 | 6 | 69 | |||||||||||||||||||
| 2/WC |  C Garcia | 4 | 63 | ||||||||||||||||||||||||
Qualifying
Seeds
 Arantxa Rus (qualified) Arantxa Rus (qualified)
 Jennifer Brady (qualified) Jennifer Brady (qualified)
 Caroline Dolehide (first round) Caroline Dolehide (first round)
.svg.png) Priscilla Hon (qualified) Priscilla Hon (qualified)
.svg.png) Conny Perrin (qualified) Conny Perrin (qualified)
 Han Xinyun (qualifying competition) Han Xinyun (qualifying competition)
 Duan Yingying (qualified) Duan Yingying (qualified)
 Kurumi Nara (qualifying competition) Kurumi Nara (qualifying competition)
 Danka Kovinić (first round) Danka Kovinić (first round)
 Ayano Shimizu (qualifying competition) Ayano Shimizu (qualifying competition)
 Ankita Raina (qualifying competition) Ankita Raina (qualifying competition)
 Karman Thandi (first round) Karman Thandi (first round)
Qualifiers
Qualifying draw
First qualifier
| First round | Qualifying competition | ||||||||||||
| 1 |  Arantxa Rus | 4 | 6 | 6 | |||||||||
| WC |  Nudnida Luangnam | 6 | 2 | 1 | |||||||||
| 1 |  Arantxa Rus | 6 | 77 | ||||||||||
|  Liang En-shuo | 2 | 62 | |||||||||||
|  Liang En-shuo | 6 | 6 | |||||||||||
| 9 |  Danka Kovinić | 1 | 3 | ||||||||||
Second qualifier
| First round | Qualifying competition | ||||||||||||
| 2 |  Jennifer Brady | 6 | 6 | ||||||||||
|  Zuzana Zlochová | 1 | 1 | |||||||||||
| 2 |  Jennifer Brady | 6 | 6 | ||||||||||
| 8 |  Kurumi Nara | 1 | 2 | ||||||||||
|  Xun Fangying | 4 | 0 | |||||||||||
| 8 |  Kurumi Nara | 6 | 6 | ||||||||||
Third qualifier
| First round | Qualifying competition | ||||||||||||
| 3 |  Caroline Dolehide | 67 | 6 | 5 | |||||||||
|  Yang Zhaoxuan | 79 | 2 | 7 | ||||||||||
|  Yang Zhaoxuan | 3 | 3 | |||||||||||
|  Chloé Paquet | 6 | 6 | |||||||||||
|  Chloé Paquet | 6 | 7 | |||||||||||
| 12 |  Karman Thandi | 3 | 5 | ||||||||||
Fourth qualifier
| First round | Qualifying competition | ||||||||||||
| 4 | .svg.png) Priscilla Hon | 6 | 6 | ||||||||||
|  Naomi Broady | 3 | 2 | |||||||||||
| 4 | .svg.png) Priscilla Hon | 6 | 6 | ||||||||||
| 10 |  Ayano Shimizu | 2 | 3 | ||||||||||
|  Peangtarn Plipuech | 2 | 4 | |||||||||||
| 10 |  Ayano Shimizu | 6 | 6 | ||||||||||
Fifth qualifier
| First round | Qualifying competition | ||||||||||||
| 5 | .svg.png) Conny Perrin | 6 | 6 | ||||||||||
|  Zhang Yuxuan | 0 | 1 | |||||||||||
| 5 | .svg.png) Conny Perrin | 77 | 6 | ||||||||||
| 11 |  Ankita Raina | 61 | 3 | ||||||||||
| WC |  Ng Kwan-yau | 0 | 0 | ||||||||||
| 11 |  Ankita Raina | 6 | 6 | ||||||||||
Sixth qualifier
| First round | Qualifying competition | ||||||||||||
| 6 |  Han Xinyun | 6 | 6 | ||||||||||
| WC |  Yanin Wisitwarapron | 1 | 1 | ||||||||||
| 6 |  Han Xinyun | 1 | 6 | 5 | |||||||||
| 7 |  Duan Yingying | 6 | 2 | 7 | |||||||||
| WC |  Watsachol Sawatdee | 3 | 3 | ||||||||||
| 7 |  Duan Yingying | 6 | 6 | ||||||||||