| Singles | |
|---|---|
| 1998 Thalgo Australian Women's Hardcourts | |
| Champion |  Ai Sugiyama |
| Runner-up |  Maria Vento |
| Final score | 7–5, 6–0 |
| Draw | 30 |
| Seeds | 8 |
Elena Likhovtseva was the defending champion but lost in the second round to Maria Vento.
Ai Sugiyama won in the final 7–5, 6–0 against Vento.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top two seeds received a bye to the second round.
Brenda Schultz-McCarthy (quarterfinals)
Ruxandra Dragomir (quarterfinals) Ai Sugiyama (champion)
Patty Schnyder (second round)
Joannette Kruger (first round)
Elena Likhovtseva (second round)
Anne-Gaëlle Sidot (first round)| Final | ||||||
| Maria Vento | 5 | 0 | ||||
| 4 | Ai Sugiyama | 7 | 6 | |||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | B Schultz-McCarthy | 6 | 6 | ||||||||||||||||||||||||
| WC |  N Pratt | 5 | 2 |  C Morariu | 4 | 2 | |||||||||||||||||||||
| C Morariu | 7 | 6 | 1 | B Schultz-McCarthy | 0 | r | |||||||||||||||||||||
 M Serna | 3 | 4 | M Vento | 4 | |||||||||||||||||||||||
| M Vento | 6 | 6 | M Vento | 7 | 6 | ||||||||||||||||||||||
 O Barabanschikova | 6 | 1 | 1 | 7 | E Likhovtseva | 5 | 4 | ||||||||||||||||||||
| 7 | E Likhovtseva | 2 | 6 | 6 | M Vento | 6 | 6 | ||||||||||||||||||||
| LL |  J Kandarr | 4 | 6 | 6 | Q |  S Plischke | 2 | 3 | |||||||||||||||||||
| E Gagliardi | 6 | 4 | 3 | LL | J Kandarr | 4 | 6 | 1 | |||||||||||||||||||
 L Courtois | 7 | 4 | 5 | M de Swardt | 6 | 2 | 6 | ||||||||||||||||||||
| M de Swardt | 5 | 6 | 7 | M de Swardt | 6 | 4 | |||||||||||||||||||||
| WC | K Kunce | 3 | 2 | Q | S Plischke | 7 | 6 | ||||||||||||||||||||
| Q | S Plischke | 6 | 6 | Q | S Plischke | 6 | 6 | 6 | |||||||||||||||||||
 R Grande | 4 | 4 | 5 | P Schnyder | 7 | 4 | 4 | ||||||||||||||||||||
| 5 | P Schnyder | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | J Kruger | 2 | 6 | 2 | |||||||||||||||||||||||
| S Pitkowski | 6 | 3 | 6 | S Pitkowski | 6 | 7 | |||||||||||||||||||||
 D Chládková | 7 | 2 | 7 | D Chládková | 1 | 5 | |||||||||||||||||||||
| Q | M Endo | 6 | 6 | 6 | S Pitkowski | 0 | 5 | ||||||||||||||||||||
| Q | C Barclay | 7 | 7 | 4 | A Sugiyama | 6 | 7 | ||||||||||||||||||||
| M Sánchez Lorenzo | 5 | 6 | Q | C Barclay | 6 | 1 | |||||||||||||||||||||
 M Maleeva | 5 | 2 | 4 | A Sugiyama | 7 | 6 | |||||||||||||||||||||
| 4 | A Sugiyama | 7 | 6 | 4 | A Sugiyama | 6 | 7 | ||||||||||||||||||||
| 8 | A-G Sidot | 6 | 3 | 3 |  S-T Wang | 4 | 5 | ||||||||||||||||||||
| S-T Wang | 3 | 6 | 6 | S-T Wang | 1 | 6 | 6 | ||||||||||||||||||||
| R McQuillan | 6 | 6 | R McQuillan | 6 | 4 | 4 | |||||||||||||||||||||
| K-A Guse | 1 | 1 | S-T Wang | 6 | 5 | 6 | |||||||||||||||||||||
| Q | J Lee | 7 | 3 | 5 | 2 | R Dragomir | 3 | 7 | 3 | ||||||||||||||||||
 M Grzybowska | 5 | 6 | 7 | M Grzybowska | 6 | 4 | |||||||||||||||||||||
| 2 | R Dragomir | 7 | 6 | ||||||||||||||||||||||||
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