# 1998 Toray Pan Pacific Open – Singles

Lindsay Davenport defeated the defending champion Martina Hingis in the final, 6–3, 6–3 to win the singles tennis title at the 1998 Pan Pacific Open.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.
* Martina Hingis (final)
* Lindsay Davenport (champion)
* Amanda Coetzer (semifinals)
* Iva Majoli (semifinals)
* Irina Spîrlea (quarterfinals)
* Anke Huber (first round)
* Brenda Schultz-McCarthy (withdrew)
* Ai Sugiyama (quarterfinals)
* Ruxandra Dragomir (first 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

### Final

| Final | Final | Final | Final | Final |
| 1 | Martina Hingis | 3 | 3 | |
| 2 | Lindsay Davenport | 6 | 6 | |

### Section 1

| 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 | M Hingis | 6 | 6 | | | | | | | | | |
| | E Likhovtseva | 6 | 6 | | | E Likhovtseva | 1 | 0 | | | | | | | | | |
| | M Lučić | 1 | 2 | | | | | | | 1 | M Hingis | 6 | 7 | | | | |
| Q | K Boogert | 6 | 1 | 4 | | | | | | | R Grande | 2 | 5 | | | | |
| | R Grande | 3 | 6 | 6 | | R Grande | 1 | 6 | 6 | | | | | | | | |
| | M Vento | 6 | 6 | | | M Vento | 6 | 3 | 3 | | | | | | | | |
| 9 | R Dragomir | 0 | 3 | | | | | | | | | | | 1 | M Hingis | 6 | 6 |
| | | | | | | | | | | | | | | 4 | I Majoli | 0 | 2 |
| | | | | | 4 | I Majoli | 6 | 3 | | | | | | | | | |
| | T Tanasugarn | 1 | 3 | | Q | F Li | 3 | 0 | r | | | | | | | | |
| Q | F Li | 6 | 6 | | | | | | | 4 | I Majoli | 6 | 6 | | | | |
| WC | M Saeki | 3 | 6 | 6 | | | | | | WC | M Saeki | 2 | 1 | | | | |
| | M Serna | 6 | 3 | 3 | WC | M Saeki | 6 | 7 | | | | | | | | | |
| | M Maleeva | 3 | 7 | 6 | | M Maleeva | 4 | 6 | | | | | | | | | |
| 6 | A Huber | 6 | 6 | 1 | | | | | | | | | | | | | |

### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | A Sugiyama | 7 | 6 | | | | | | | | | | | | | | |
| | K-A Guse | 6 | 0 | | 8 | A Sugiyama | 6 | 7 | | | | | | | | | |
| WC | Y Yoshida | 4 | 7 | 6 | WC | Y Yoshida | 1 | 6 | | | | | | | | | |
| | M Grzybowska | 6 | 6 | 4 | | | | | 8 | A Sugiyama | 3 | 6 | 2 | | | | |
| Q | Y-J Cho | 3 | 4 | | | | | | 3 | A Coetzer | 6 | 2 | 6 | | | | |
| Q | S Reeves | 6 | 6 | | Q | S Reeves | 4 | 4 | | | | | | | | | |
| | | | | | 3 | A Coetzer | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 3 | A Coetzer | 2 | 1 |
| 5 | I Spîrlea | 7 | 6 | | | | | | | | | | | 2 | L Davenport | 6 | 6 |
| LL | S-H Park | 5 | 0 | | 5 | I Spîrlea | 6 | 6 | | | | | | | | | |
| | N Zvereva | 4 | 6 | | | J Kruger | 1 | 2 | | | | | | | | | |
| | J Kruger | 6 | 7 | | | | | | 5 | I Spîrlea | 6 | 6 | | | | | |
| | M Sánchez Lorenzo | 1 | 1 | | | | | | 2 | L Davenport | 7 | 7 | | | | | |
| | N Sawamatsu | 6 | 6 | | | N Sawamatsu | 2 | 2 | | | | | | | | | |
| | | | | | 2 | L Davenport | 6 | 6 | | | | | | | | | |