| Doubles | |
|---|---|
| 1998 Toyota Princess Cup | |
| 1997 Champions |  Monica Seles  Ai Sugiyama |
| Champions |  Anna Kournikova Monica Seles |
| Runners-up | Mary Joe Fernández  Arantxa Sánchez Vicario |
| Final score | 6–4, 6–4 |
Monica Seles and Ai Sugiyama were the defending champions but only Seles competed that year with Anna Kournikova.
Kournikova and Seles won in the final 6–4, 6–4 against Mary Joe Fernández and Arantxa Sánchez Vicario.
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
Lisa Raymond / 
Rennae Stubbs (semifinals)
Julie Halard-Decugis / 
Mirjana Lučić (quarterfinals) Kerry-Anne Guse / 
Sung-Hee Park (quarterfinals) Anna Kournikova / Monica Seles (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | L Raymond R Stubbs | 7 | 7 | ||||||||||||||||||||||||
 J Husárová  D Van Roost | 5 | 5 | 1 | L Raymond R Stubbs | 6 | 6 | |||||||||||||||||||||
E-H Kim  B Sangaram | 2 | 0 |  O Barabanschikova H Nagyová | 3 | 2 | ||||||||||||||||||||||
| O Barabanschikova H Nagyová | 6 | 6 | 1 | L Raymond R Stubbs | 6 | 3 | |||||||||||||||||||||
| 4 | A Kournikova M Seles | 6 | 6 | 4 | A Kournikova M Seles | 7 | 6 | ||||||||||||||||||||
 A Coetzer  A Huber | 1 | 3 | 4 | A Kournikova M Seles | 6 | 6 | |||||||||||||||||||||
| R Hiraki N Kijimuta | 7 | 4 | 4 | L McShea K Po | 2 | 0 | |||||||||||||||||||||
| L McShea K Po | 6 | 6 | 6 | 4 | Anna Kournikova Monica Seles | 6 | 6 | ||||||||||||||||||||
 J Lee S-T Wang | 1 | 3 | Mary Joe Fernández Arantxa Sánchez Vicario | 4 | 4 | ||||||||||||||||||||||
| E Likhovtseva T Tanasugarn | 6 | 6 | E Likhovtseva T Tanasugarn | 6 | 6 | ||||||||||||||||||||||
| WC | H Inoue M Inoue | 1 | 6 | 3 | K-A Guse S-H Park | 2 | 3 | ||||||||||||||||||||
| 3 | K-A Guse S-H Park | 6 | 7 | E Likhovtseva T Tanasugarn | 4 | 1 | |||||||||||||||||||||
| M J Fernández A Sánchez Vicario | 6 | 7 | M J Fernández A Sánchez Vicario | 6 | 6 | ||||||||||||||||||||||
| Q | J Chi A Frazier | 1 | 6 | M J Fernández A Sánchez Vicario | w/o | ||||||||||||||||||||||
| M Saeki Y Yoshida | 2 | 3 | 2 | J Halard-Decugis M Lučić | |||||||||||||||||||||||
| 2 | J Halard-Decugis M Lučić | 6 | 6 | ||||||||||||||||||||||||
Martina Hingis was the two-time defending champion, and she defeated unseeded Amélie Mauresmo, 6–2, 6–3, in the final to win the women's singles tennis title at the 1999 Australian Open. With this win, she joined Margaret Court, Evonne Goolagong, Steffi Graf and Monica Seles as the only women to have won three consecutive Australian Open titles. Hingis also became the only woman to have won three consecutive Australian Open titles in singles and doubles simultaneously.
Fourth-seeded Arantxa Sánchez Vicario won the title, defeating Monica Seles in the final 7–6(7–5), 0–6, 6–2, to win the women's singles tennis title at the 1998 French Open. This marked the last time Sánchez Vicario defeated Seles at any tournament. It was also the last major final in which either Sánchez Vicario or Seles played.
Martina Hingis was the defending champion but lost in the semifinals to Venus Williams.
Lindsay Davenport was the defending champion but lost in the semifinals to Mary Pierce.
Lindsay Davenport and Jana Novotná were the defending champions but only Davenport competed that year with Monica Seles.
Mary Pierce was the defending champion but lost in the third round to Mirjana Lučić.
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Monica Seles was the defending champion and won in the final 4–6, 6–3, 6–4 against Arantxa Sánchez Vicario.
Martina Hingis and Arantxa Sánchez-Vicario were the defending champions but only Sánchez-Vicario competed that year with Anna Kournikova.
Jana Novotná was the defending champion, but chose not to compete that year.
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The 1999 Family Circle Cup singles was the singles event of the twenty-seventh edition of the tennis tournament played at Hilton Head, United States. It is the third WTA Tier I tournament of the year, and part of the US Spring tennis season. Amanda Coetzer was the defending champion but lost in the third round to Henrieta Nagyová.
The 1999 Bausch & Lomb Championships singles was the singles event of the twentieth edition of the Bausch & Lomb Championships; a WTA Tier II tournament held in Amelia Island, Florida, United States, played on green clay. Mary Pierce was the defending champion but lost in the quarterfinals to Conchita Martínez.
Amélie Mauresmo was the defending champion but withdrew from her semifinal match against Lindsay Davenport.
Serena and Venus Williams defeated Martina Hingis and Anna Kournikova in the final, 6–3, 6–7(2–7), 8–6 to win the women's doubles tennis title at the 1999 French Open. It was the first major title for the Williams sisters, and would be their first step towards completing the career Golden Slam in doubles.
Serena and Venus Williams defeated Lindsay Davenport and Corina Morariu in the final, 6–2, 4–6, 6–4 to win the women's doubles tennis title at the 2001 Australian Open. It was the Williams sisters' fourth major doubles title, and they completed the career Golden Slam in doubles with the win.
Serena Williams was the defending champion, but lost in the quarterfinals to Mary Pierce.
Monica Seles was the defending champion and successfully defender her title by defeating Conchita Martínez 6–3, 6–2 in the final.
Venus Williams was the defending champion and successfully defended her title, by defeating Monica Seles 6–2, 6–3 in the final.