# 1993 Japan Open Tennis Championships – Women's singles

Kimiko Date was the defending champion and successfully defended her title, by defeating Stephanie Rottier 6–1, 6–3 in the final.

## Seeds

* Kimiko Date (champion)
* Naoko Sawamatsu (second round)
* Pam Shriver (quarterfinals)
* Sabine Appelmans (second round)
* Patty Fendick (quarterfinals)
* Nicole Provis (semifinals)
* Wiltrud Probst (first round)
* Stephanie Rottier (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 | Final | Final | Final | Final |
| 1 | Kimiko Date | 6 | 6 | | | | |
| 6 | Nicole Provis | 3 | 1 | | | | |
| 6 | Nicole Provis | 3 | 1 | 1 | Kimiko Date | 6 | 6 |
| | | | | 8 | Stephanie Rottier | 1 | 3 |
| 8 | Stephanie Rottier | 6 | 6 | 8 | Stephanie Rottier | 1 | 3 |
| | Mana Endo | 4 | 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 |
| 1 | K Date | 7$^7$ | 6$^6$ | 7 | | | | | | | | | | | | | | |
| | S Testud | 6$^1$ | 7$^8$ | 5 | 1 | K Date | 6 | 6 | | | | | | | | | | |
| | F Li | 6 | 6 | | | F Li | 0 | 0 | | | | | | | | | | |
| Q | M Yanagi | 0 | 3 | | | | | | | 1 | K Date | 6 | 4 | 6 | | | | |
| | M Javer | 4 | 5 | | | | | | | | M Oremans | 3 | 6 | 3 | | | | |
| | M Oremans | 6 | 7 | | | M Oremans | 6$^3$ | 6 | 7 | | | | | | | | | |
| | K Nagatsuka | 6 | 7 | | | K Nagatsuka | 7$^7$ | 0 | 5 | | | | | | | | | |
| 7 | W Probst | 2 | 5 | | | | | | | | | | | | 1 | K Date | 6 | 6 |
| 3 | P Shriver | 6 | 6 | | | | | | | | | | | | 6 | N Provis | 3 | 1 |
| | M Werdel | 4 | 4 | | 3 | P Shriver | 6 | | | | | | | | | | | |
| | K Habšudová | 5 | 6 | 3 | Q | A Henricksson | 1 | r | | | | | | | | | | |
| Q | A Henricksson | 7 | 3 | 6 | | | | | | 3 | P Shriver | 3 | 3 | | | | | |
| WC | Y Kamio | 1 | 3 | | | | | | | 6 | N Provis | 6 | 6 | | | | | |
| | A Sugiyama | 6 | 6 | | | A Sugiyama | 4 | 0 | | | | | | | | | | |
| | R Hiraki | 6 | 4 | 4 | 6 | N Provis | 6 | 6 | | | | | | | | | | |
| 6 | N Provis | 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 |
| 8 | S Rottier | 6 | 4 | 6 | | | | | | | | | | | | | |
| | P Paradis-Mangon | 4 | 6 | 1 | 8 | S Rottier | 7$^7$ | 6 | | | | | | | | | |
| Q | M Miyauchi | 6 | 6 | | Q | M Miyauchi | 6$^3$ | 2 | | | | | | | | | |
| | E Švíglerová | 4 | 2 | | | | | | | 8 | S Rottier | 6 | 6 | | | | |
| | P Thorén | 1 | 3 | | | | | | | | M Jaggard-Lai | 3 | 3 | | | | |
| | M Jaggard-Lai | 6 | 6 | | | M Jaggard-Lai | 6 | 6 | | | | | | | | | |
| | C Cunningham | 4 | 0 | | 4 | S Appelmans | 2 | 2 | | | | | | | | | |
| 4 | S Appelmans | 6 | 6 | | | | | | | | | | | 8 | S Rottier | 6 | 6 |
| 5 | P Fendick | 7 | 7$^7$ | | | | | | | | | | | | M Endo | 4 | 2 |
| | N Miyagi | 5 | 6$^4$ | | 5 | P Fendick | 6 | 6 | | | | | | | | | |
| | A Strnadová | 6$^3$ | 0 | | | Y Basuki | 1 | 2 | | | | | | | | | |
| | Y Basuki | 7$^7$ | 6 | | | | | | | 5 | P Fendick | 4 | 5 | | | | |
| Q | Y Yoshida | 1 | 4 | | | | | | | | M Endo | 6 | 7 | | | | |
| | M Endo | 6 | 6 | | | M Endo | 6 | 6$^5$ | 6 | | | | | | | | |
| WC | M Donoshiro | 3 | 3 | | 2 | N Sawamatsu | 3 | 7$^7$ | 4 | | | | | | | | |
| 2 | N Sawamatsu | 6 | 6 | | | | | | | | | | | | | | |