# 2019 OEC Taipei WTA Challenger – Singles

Luksika Kumkhum was the defending champion, but chose not to participate.
Vitalia Diatchenko won the title for the second time, defeating Tímea Babos in the final, 6–3, 6–2.

## Seeds

* Danka Kovinić (semifinals)
* Tímea Babos (final)
* Vitalia Diatchenko (champion)
* Priscilla Hon (first round)
* Tereza Martincová (first round)
* Kaja Juvan (second round, retired)
* Bibiane Schoofs (first round)
* Viktoriya Tomova (semifinals)

## 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 |
| 1 | Danka Kovinić | 3 | 2 | | | | |
| 3 | Vitalia Diatchenko | 6 | 6 | | | | |
| 3 | Vitalia Diatchenko | 6 | 6 | 3 | Vitalia Diatchenko | 6 | 6 |
| | | | | 2 | Tímea Babos | 3 | 2 |
| 8 | Viktoriya Tomova | 1 | 2 | 2 | Tímea Babos | 3 | 2 |
| 2 | Tímea Babos | 6 | 6 | | | | |

### 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 | D Kovinić | 6$^3$ | 6 | 6 | | | | | | | | | | | | | |
| WC | E Chong | 7$^7$ | 4 | 3 | 1 | D Kovinić | 6 | 7 | | | | | | | | | |
| | J Fett | 6 | 1 | 2 | | U Radwańska | 2 | 5 | | | | | | | | | |
| | U Radwańska | 0 | 6 | 6 | | | | | | 1 | D Kovinić | 6 | 6 | | | | |
| | P Plipuech | 7 | 3 | 3 | | | | | | | K Okamura | 3 | 0 | | | | |
| | K Okamura | 5 | 6 | 6 | | K Okamura | 1 | 6 | 6 | | | | | | | | |
| | I Shinikova | 6 | 6 | | | I Shinikova | 6 | 2 | 4 | | | | | | | | |
| 7 | B Schoofs | 2 | 4 | | | | | | | | | | | 1 | D Kovinić | 3 | 2 |
| 3 | V Diatchenko | 7$^7$ | 6 | | | | | | | | | | | 3 | V Diatchenko | 6 | 6 |
| | A Raina | 6$^1$ | 1 | | 3 | V Diatchenko | 6 | 6 | | | | | | | | | |
| | R Ozaki | 1 | 3 | | | K Rakhimova | 4 | 4 | | | | | | | | | |
| | K Rakhimova | 6 | 6 | | | | | | | 3 | V Diatchenko | 6 | 6 | | | | |
| | Ya-hsu Lee | 7$^{11}$ | 6 | | | | | | | | J Čepelová | 1 | 1 | | | | |
| | C Muramatsu | 6$^9$ | 4 | | | Ya-hsu Lee | 3 | 3 | | | | | | | | | |
| | J Čepelová | 6 | 6 | | | J Čepelová | 6 | 6 | | | | | | | | | |
| 5 | T Martincová | 3 | 1 | | | | | | | | | | | | | | |

### 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 |
| 8 | V Tomova | 6 | 2 | 3 | | | | | | | | | | | | | | |
| | S Bandecchi | 4 | 6 | 0$^r$ | 8 | V Tomova | 6 | 6 | | | | | | | | | | |
| WC | J Garland | 3 | 3 | | WC | Y-y Yang | 4 | 2 | | | | | | | | | | |
| WC | Y-y Yang | 6 | 6 | | | | | | | 8 | V Tomova | 6 | 7 | | | | | |
| | D Jakupović | 2 | 6 | 6 | | | | | | | D Jakupović | 0 | 5 | | | | | |
| Q | Ya-hsi Lee | 6 | 2 | 2 | | D Jakupović | 3 | 6 | 6 | | | | | | | | | |
| | A Hesse | 6 | 3 | 6 | | A Hesse | 6 | 3 | 3 | | | | | | | | | |
| 4 | P Hon | 4 | 6 | 3 | | | | | | | | | | | 8 | V Tomova | 1 | 2 |
| 6 | K Juvan | 6 | 6 | | | | | | | | | | | | 2 | T Babos | 6 | 6 |
| Q | E Webley-Smith | 1 | 2 | | 6 | K Juvan | 6 | 2 | 4$^r$ | | | | | | | | | |
| | Ar Rodionova | 3 | 7$^7$ | 5 | | N Bains | 1 | 6 | 3 | | | | | | | | | |
| | N Bains | 6 | 6$^3$ | 7 | | | | | | | N Bains | 4 | 6 | 3 | | | | |
| WC | C-w Hsu | 1 | 4 | | | | | | | 2 | T Babos | 6 | 4 | 6 | | | | |
| Q | S Sanders | 6 | 6 | | Q | S Sanders | 4 | 6$^8$ | | | | | | | | | | |
| Q | A Sutjiadi | 6 | 4 | 3 | 2 | T Babos | 6 | 7$^{10}$ | | | | | | | | | | |
| 2 | T Babos | 2 | 6 | 6 | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Aldila Sutjiadi (qualified)
* Storm Sanders (qualified)
* Sarah-Rebecca Sekulic (qualifying competition)
* Emily Webley-Smith (qualified)
* Yana Sizikova (qualifying competition)
* Jasmin Jebawy (first round)
* Sviatlana Pirazhenka (first round)
* Lee Ya-hsin (qualified)

### Qualifiers

* Aldila Sutjiadi
* Storm Sanders
* Lee Ya-hsin
* Emily Webley-Smith

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Aldila Sutjiadi | 6 | 1 | 7 | | | | | |
| | Cho Yi-tsen | 0 | 6 | 5 | | | | | |
| | Cho Yi-tsen | 0 | 6 | 5 | 1 | Aldila Sutjiadi | 5 | 6 | 6 |
| | | | | | | Natela Dzalamidze | 7 | 2 | 4 |
| | Natela Dzalamidze | 6 | 6 | | | Natela Dzalamidze | 7 | 2 | 4 |
| 7 | Sviatlana Pirazhenka | 3 | 1 | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Storm Sanders | 2 | 6 | 6 | | | | |
| WC | Chen Pei-hsuan | 6 | 0 | 3 | | | | |
| WC | Chen Pei-hsuan | 6 | 0 | 3 | 2 | Storm Sanders | 6 | 6 |
| | | | | | WC | Lee Kuan-yi | 3 | 2 |
| WC | Lee Kuan-yi | 6 | 6 | | WC | Lee Kuan-yi | 3 | 2 |
| 6 | Jasmin Jebawy | 3 | 3 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Sarah-Rebecca Sekulic | 6 | 6 | | | | | |
| | Hsieh Yu-chieh | 2 | 3 | | | | | |
| | Hsieh Yu-chieh | 2 | 3 | 3 | Sarah-Rebecca Sekulic | 7$^7$ | 6$^5$ | 4 |
| | | | | 8 | Lee Ya-hsin | 6$^5$ | 7$^7$ | 6 |
| | Naoko Eto | 0 | 1 | 8 | Lee Ya-hsin | 6$^5$ | 7$^7$ | 6 |
| 8 | Lee Ya-hsin | 6 | 6 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Emily Webley-Smith | 6 | 6 | | | | |
| | Cho I-hsuan | 4 | 1 | | | | |
| | Cho I-hsuan | 4 | 1 | 4 | Emily Webley-Smith | 6 | 6 |
| | | | | 5 | Yana Sizikova | 2 | 2 |
| | Alexandra Riley | 4 | 2 | 5 | Yana Sizikova | 2 | 2 |
| 5 | Yana Sizikova | 6 | 6 | | | | |