# 1994 Japan Open Tennis Championships – Women's singles

Kimiko Date was the defending champion and won in the final 7–5, 6–0 against Amy Frazier.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Kimiko Date (champion)
* Sabine Appelmans (semifinals)
* Naoko Sawamatsu (semifinals)
* Amy Frazier (final)
* Patty Fendick (quarterfinals)
* Yayuk Basuki (first round)
* Mana Endo (first round)
* Shi-Ting Wang (second 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
| 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 | Final | Final | Final | Final |
| 1 | K Date | 5 | 6 | 6 | | | | | | | | | | | | | | | | | | |
| Q | H Mochizuki | 7 | 1 | 3 | 1 | K Date | 7 | 3 | 6 | | | | | | | | | | | | | |
| WC | N Kijimuta | 3 | 6 | 7 | WC | N Kijimuta | 5 | 6 | 2 | | | | | | | | | | | | | |
| | A Sugiyama | 6 | 3 | 6 | | | | | | 1 | K Date | 6 | 6 | | | | | | | | | |
| Q | M Joubert | 2 | 0 | | | | | | | | B Schett | 0 | 1 | | | | | | | | | |
| | B Schett | 6 | 6 | | | B Schett | 6 | 6 | | | | | | | | | | | | | | |
| | L Harvey-Wild | 6 | 3 | 6 | | L Harvey-Wild | 4 | 4 | | | | | | | | | | | | | | |
| 7 | M Endo | 4 | 6 | 0 | | | | | | | | | | | 1 | K Date | 6 | 6 | | | | |
| 3 | N Sawamatsu | 6 | 6 | | | | | | | | | | | | 3 | N Sawamatsu | 4 | 2 | | | | |
| Q | Y Yoshida | 4 | 0 | | 3 | N Sawamatsu | 6 | 6 | | | | | | | | | | | | | | |
| | K Radford | 3 | 7 | 2 | | R McQuillan | 3 | 0 | | | | | | | | | | | | | | |
| | R McQuillan | 6 | 5 | 6 | | | | | | 3 | N Sawamatsu | 5 | 6 | 6 | | | | | | | | |
| | M Miyauchi | 6 | 1 | 4 | | | | | | | F Labat | 7 | 2 | 3 | | | | | | | | |
| | F Labat | 2 | 6 | 6 | | F Labat | 4 | 6 | 6 | | | | | | | | | | | | | |
| | L Niemantsverdriet | 7 | 6 | | | L Niemantsverdriet | 6 | 4 | 3 | | | | | | | | | | | | | |
| 6 | Y Basuki | 6 | 3 | | | | | | | | | | | | | | | | 1 | Kimiko Date | 7 | 6 |
| 5 | P Fendick | 4 | 7 | 6 | | | | | | | | | | | | | | | 4 | Amy Frazier | 5 | 0 |
| Q | J Ceniza | 6 | 5 | 3 | 5 | P Fendick | 6 | 6 | | | | | | | | | | | | | | |
| | T Whitlinger-Jones | 6 | 6 | | | T Whitlinger-Jones | 2 | 3 | | | | | | | | | | | | | | |
| | Y Kamio | 4 | 0 | | | | | | | 5 | P Fendick | 2 | 7 | 6 | | | | | | | | |
| | S Testud | 4 | 2 | | | | | | | 4 | A Frazier | 6 | 6 | 7 | | | | | | | | |
| | K Nagatsuka | 6 | 6 | | | K Nagatsuka | 2 | 3 | | | | | | | | | | | | | | |
| | E Švíglerová | 4 | 6 | 5 | 4 | A Frazier | 6 | 6 | | | | | | | | | | | | | | |
| 4 | A Frazier | 6 | 3 | 7 | | | | | | | | | | | 4 | A Frazier | 7 | 6 | | | | |
| 8 | S-T Wang | 7 | 7 | | | | | | | | | | | | 2 | S Appelmans | 5 | 2 | | | | |
| | B Paulus | 6 | 5 | | 8 | S-T Wang | 3 | 2 | | | | | | | | | | | | | | |
| | M Werdel | 4 | 6 | 6 | | M Werdel | 6 | 6 | | | | | | | | | | | | | | |
| | M Jaggard-Lai | 6 | 1 | 2 | | | | | | | M Werdel | 2 | 0 | | | | | | | | | |
| | F Li | 5 | 6 | 3 | | | | | | 2 | S Appelmans | 6 | 6 | | | | | | | | | |
| WC | N Miyagi | 7 | 4 | 6 | WC | N Miyagi | 4 | 3 | | | | | | | | | | | | | | |
| | N Baudone | 2 | 4 | | 2 | S Appelmans | 6 | 6 | | | | | | | | | | | | | | |
| 2 | S Appelmans | 6 | 6 | | | | | | | | | | | | | | | | | | | |