| Singles | |
|---|---|
| 1998 Acura Classic | |
| 1997 Champion |  Monica Seles |
| Champion | Lindsay Davenport |
| Runner-up |  Martina Hingis |
| Score | 4–6, 6–4, 6–3 |
| Draw | 28 |
| Seeds | 8 |
Monica Seles was the defending champion but lost in the semifinals to Lindsay Davenport.
Davenport won in the final 4–6, 6–4, 6–3 against Martina Hingis.
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)
Arantxa Sánchez Vicario (semifinals) Monica Seles (semifinals)
Nathalie Tauziat (quarterfinals)
Irina Spîrlea (second round) Sandrine Testud (second round)
Natasha Zvereva (quarterfinals)| Final | ||||||
| 1 | Martina Hingis | 6 | 4 | 3 | ||
| 2 | Lindsay Davenport | 4 | 6 | 6 | ||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Hingis | 6 | 6 | ||||||||||||||||||||||||
 I Majoli | 1 | 6 | 6 | I Majoli | 3 | 3 | |||||||||||||||||||||
 R Grande | 6 | 2 | 4 | 1 | M Hingis | 6 | 6 | ||||||||||||||||||||
| S Williams | 6 | 6 | S Williams | 4 | 1 | ||||||||||||||||||||||
| Q |  L Neiland | 0 | 0 | S Williams | 6 | 3 | 6 | ||||||||||||||||||||
| Q | A Serra Zanetti | 3 | 5 | 7 | S Testud | 4 | 6 | 1 | |||||||||||||||||||
| 7 | S Testud | 6 | 7 | 1 | M Hingis | 6 | 6 | ||||||||||||||||||||
| 3 | A Sánchez Vicario | 4 | 4 | ||||||||||||||||||||||||
| 3 | A Sánchez Vicario | 4 | 6 | 6 | |||||||||||||||||||||||
| WC | A-G Sidot | 4 | 3 |  A Sugiyama | 6 | 4 | 4 | ||||||||||||||||||||
| A Sugiyama | 6 | 6 | 3 | A Sánchez Vicario | 6 | 6 | |||||||||||||||||||||
| LL |  E Tatarkova | 4 | 6 | 6 | LL | E Tatarkova | 3 | 3 | |||||||||||||||||||
 Y Basuki | 6 | 3 | 3 | LL | E Tatarkova | 6 | 6 | ||||||||||||||||||||
 F Li | 0 | 2 | 6 | I Spîrlea | 2 | 2 | |||||||||||||||||||||
| 6 | I Spîrlea | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | N Tauziat | 6 | 7 | ||||||||||||||||||||||||
| WC | C Rubin | 4 | 5 | 5 | N Tauziat | 6 | 6 | ||||||||||||||||||||
| A Fusai | 6 | 6 | A Fusai | 3 | 3 | ||||||||||||||||||||||
| Q | A Stevenson | 3 | 3 | 5 | N Tauziat | 4 | 4 | ||||||||||||||||||||
| N Sawamatsu | 6 | 3 | 2 | 4 | M Seles | 6 | 6 | ||||||||||||||||||||
 B Paulus | 3 | 6 | 6 | B Paulus | 1 | 2 | |||||||||||||||||||||
| 4 | M Seles | 6 | 6 | ||||||||||||||||||||||||
| 4 | M Seles | 4 | 2 | ||||||||||||||||||||||||
| 8 | N Zvereva | 7 | 6 | 2 | L Davenport | 6 | 6 | ||||||||||||||||||||
| Q |  A Kremer | 5 | 2 | 8 | N Zvereva | 6 | 6 | ||||||||||||||||||||
| M Serna | 6 | 7 | 6 | M Serna | 2 | 1 | |||||||||||||||||||||
| WC |  T Tanasugarn | 7 | 5 | 2 | 8 | N Zvereva | 2 | 3 | |||||||||||||||||||
| J Halard-Decugis | 6 | 6 | 2 | L Davenport | 6 | 6 | |||||||||||||||||||||
| K Po | 2 | 4 | J Halard-Decugis | 0 | 4 | ||||||||||||||||||||||
| 2 | L Davenport | 6 | 6 | ||||||||||||||||||||||||
Martina Hingis defeated Monica Seles in the final, 6–2, 6–1 to win the women's singles tennis title at the 1997 Miami Open. At 16 years and 6 months, Hingis became the youngest-ever world No. 1 player in women's singles. This marked the first time that neither Steffi Graf, Seles nor Arantxa Sánchez Vicario were ranked No. 1 since August 17, 1987.
Magdalena Maleeva was the defending champion but lost in the second round to Jennifer Capriati.
Magdalena Maleeva was the defending champion but lost in the first round to Kimberly Po.
Defending champion Steffi Graf successfully defended her title, defeating Martina Hingis in the final, 6–3, 4–6, 6–0, 4–6, 6–0 to win the singles tennis title at the 1996 WTA Tour Championships. It was her fifth and last Tour Finals singles title.
Monica Seles was the defending champion but did not compete that year.
Martina Hingis defeated Monica Seles in the final, 3–6, 6–3, 7–6 to win the singles tennis title at the 1997 Family Circle Cup.
Martina Hingis was the defending champion and won in the final 6–0, 6–2 against Conchita Martínez.
Lindsay Davenport was the defending champion but lost in the final 5–7, 7–5, 6–4 against Monica Seles.
Jana Novotná was the defending champion but lost in the quarterfinals to Lindsay Davenport.
Venus Williams defeated Anna Kournikova in the final, 2–6, 6–4, 6–1 to win the women's singles tennis title at the 1998 Miami Open.
Amanda Coetzer defeated Irina Spîrlea in the final, 6–3, 6–4 to win the singles tennis title at the 1998 Family Circle Cup.
Martina Hingis was the defending champion but did not compete that year.
Martina Hingis was the defending champion but lost in the semifinals to Mary Pierce.
Martina Hingis was the defending champion but lost in the quarterfinals to Steffi Graf.
Martina Hingis defeated Lindsay Davenport in the final, 7–5, 6–4, 4–6, 6–2 to win the singles tennis title at the 1998 Chase Championships.
Martina Hingis defeated Amanda Coetzer in the final, 6–2, 6–1 to win the singles tennis title at the 1999 Pan Pacific Open.
Amélie Mauresmo was the defending champion but withdrew from her semifinal match against Lindsay Davenport.
Martina Hingis defeated Lindsay Davenport in the final, 6–3, 6–2 to win the women's singles tennis title at the 2000 Miami Open. She did not lose a set, and lost only 21 games, en route to the title.
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.
Lindsay Davenport defeated Martina Hingis in the final, 4–6, 6–4, 6–0 to win the women's singles tennis title at the 2000 Indian Wells Masters.