# 2019 Shimadzu All Japan Indoor Tennis Championships – Singles

This was the first edition of the women's tournament.
Ylena In-Albon won the title, defeating Zhang Kailin in the final, 6–2, 6–3.

## Seeds

* Nao Hibino (semifinals)
* Kurumi Nara (quarterfinals)
* Liu Fangzhou (second round)
* Ayano Shimizu (first round)
* Xun Fangying (first round)
* Liang En-shuo (first round)
* Ylena In-Albon (champion)
* Zhang Kailin (final)

## 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 | Nao Hibino | 2 | 4 | | | | | |
| 8 | Zhang Kailin | 6 | 6 | | | | | |
| 8 | Zhang Kailin | 6 | 6 | | 8 | Zhang Kailin | 2 | 3 |
| | | | | | 7 | Ylena In-Albon | 6 | 6 |
| | Robin Anderson | 7 | 4 | 2 | 7 | Ylena In-Albon | 6 | 6 |
| 7 | Ylena In-Albon | 5 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | N Hibino | 6 | 6 | | | | | | | | | | | | | | | |
| Q | M Nishimoto | 3 | 3 | | 1 | N Hibino | 6 | 6 | | | | | | | | | | |
| | N Bains | 6 | 4 | 7$^7$ | | N Bains | 1 | 4 | | | | | | | | | | |
| | J Namigata | 4 | 6 | 6$^2$ | | | | | | 1 | N Hibino | 6 | 6 | | | | | |
| | P Plipuech | 6 | 6 | | | | | | | | G Minnen | 1 | 1 | | | | | |
| Q | L Zhang | 4 | 2 | | | P Plipuech | 2 | 6 | 3 | | | | | | | | | |
| | G Minnen | 7$^7$ | 6 | | | G Minnen | 6 | 3 | 6 | | | | | | | | | |
| 6 | E-s Liang | 6$^4$ | 2 | | | | | | | | | | | | 1 | N Hibino | 2 | 4 |
| 4 | A Shimizu | 4 | 2 | | | | | | | | | | | | 8 | K Zhang | 6 | 6 |
| WC | M Imanishi | 6 | 6 | | WC | M Imanishi | 6 | 6 | | | | | | | | | | |
| WC | H Kaji | 3 | 6 | 6 | WC | H Kaji | 3 | 1 | | | | | | | | | | |
| | K Kawa | 6 | 2 | 1 | | | | | | WC | M Imanishi | 6 | 4 | 2 | | | | |
| | A Myers | 6 | 6$^4$ | 3 | | | | | | 8 | K Zhang | 2 | 6 | 6 | | | | |
| | M Kobori | 2 | 7$^7$ | 6 | | M Kobori | 2 | 4 | | | | | | | | | | |
| | M Minokoshi | 6 | 0 | 2 | 8 | K Zhang | 6 | 6 | | | | | | | | | | |
| 8 | K Zhang | 4 | 6 | 6 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 5 | F Xun | 6$^5$ | 1 | | | | | | | | | | | | | | | |
| WC | N Sato | 7$^7$ | 6 | | WC | N Sato | 1 | 2 | | | | | | | | | | |
| | R Anderson | 6 | 7 | | | R Anderson | 6 | 6 | | | | | | | | | | |
| | M Melnikova | 1 | 5 | | | | | | | | R Anderson | 6 | 6 | | | | | |
| Q | K Okamura | 7$^7$ | 2 | 6 | | | | | | Q | K Okamura | 3 | 1 | | | | | |
| Q | M Uchijima | 6$^2$ | 6 | 0 | Q | K Okamura | 6 | 2 | 6 | | | | | | | | | |
| | H Kuwata | 3 | 1 | | 3 | F Liu | 3 | 6 | 2 | | | | | | | | | |
| 3 | F Liu | 6 | 6 | | | | | | | | | | | | R Anderson | 7 | 4 | 2 |
| 7 | Y In-Albon | 6 | 6 | | | | | | | | | | | 7 | Y In-Albon | 5 | 6 | 6 |
| | R Ozaki | 1 | 4 | | 7 | Y In-Albon | 6 | 6$^3$ | 6 | | | | | | | | | |
| | Y-h Lee | 6$^7$ | 6$^3$ | | Q | A Omae | 4 | 7$^7$ | 2 | | | | | | | | | |
| Q | A Omae | 7$^9$ | 7$^7$ | | | | | | | 7 | Y In-Albon | 6 | 7$^7$ | | | | | |
| Q | E Hozumi | 3 | 1 | | | | | | | 2 | K Nara | 4 | 6$^2$ | | | | | |
| WC | M Hontama | 6 | 6 | | WC | M Hontama | 6 | 6$^1$ | 3 | | | | | | | | | |
| | S-j Jang | 6 | 4 | 4 | 2 | K Nara | 3 | 7$^7$ | 6 | | | | | | | | | |
| 2 | K Nara | 4 | 6 | 6 | | | | | | | | | | | | | | |