| Singles | |
|---|---|
| 1989 Porsche Tennis Grand Prix | |
| Champion |  Gabriela Sabatini |
| Runner-up |  Mary Joe Fernández |
| Score | 7–6(7–5), 6–4 |
| Draw | 32 (2WC/4Q) |
| Seeds | 8 |
Martina Navratilova was the three-time defending champion, but did not compete this year.
Gabriela Sabatini won the title by defeating Mary Joe Fernández 7–6(7–5), 6–4 in the final. As a result, Sabatini won a Porsche 944 S2 for winning the tournament. [1]
| Semifinals | Final | ||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | MJ Fernández | 6 | 6 | ||||||||||||||||||||||||
| Q |  P Etchemendy | 4 | 2 | 5 | MJ Fernández | 6 | 6 | ||||||||||||||||||||
 S Wasserman | 6 | 6 | S Wasserman | 1 | 0 | ||||||||||||||||||||||
| P Tarabini | 2 | 2 | 5 | MJ Fernández | 6 | 4 | 77 | ||||||||||||||||||||
 S Hanika | 6 | 4 | 77 | 4 |  M Seles | 4 | 6 | 65 | |||||||||||||||||||
| L McNeil | 2 | 6 | 64 | S Hanika | 3 | 4 | |||||||||||||||||||||
 B Schultz | 6 | 3 | 4 | 4 | M Seles | 6 | 6 | ||||||||||||||||||||
| 4 | M Seles | 4 | 6 | 6 | 5 | MJ Fernández | 3 | 6 | 7 | ||||||||||||||||||
| 7 |  R Reggi | 6 | 6 | 2 | Z Garrison | 6 | 4 | 5 | |||||||||||||||||||
| Q | W Probst | 2 | 0 | 7 | R Reggi | 1 | 3 | ||||||||||||||||||||
| G Fernández | 6 | 6 | G Fernández | 6 | 6 | ||||||||||||||||||||||
| A Henricksson | 3 | 3 | G Fernández | 4 | 2 | ||||||||||||||||||||||
| Q |  D Van Rensburg | 7 | 6 | 2 | Z Garrison | 6 | 6 | ||||||||||||||||||||
| WC | C Porwik | 5 | 3 | Q | D Van Rensburg | 6 | 1 | 1 | |||||||||||||||||||
| E Reinach | 4 | 1 | 2 | Z Garrison | 2 | 6 | 6 | ||||||||||||||||||||
| 2 | Z Garrison | 6 | 6 | ||||||||||||||||||||||||
Steffi Graf was the defending champion but did not compete that year.
Meredith McGrath and Arantxa Sánchez Vicario were the defending champions, but competed this year with different partners. McGrath teamed up with Larisa Neiland and lost in semifinals to Gabriela Sabatini and Brenda Schultz-McCarthy, while Sánchez Vicario teamed up with Jana Novotná and also lost in semifinals to Martina Hingis and Iva Majoli.
Anke Huber was the defending champion, but lost in semifinals to Gabriela Sabatini.
Martina Navratilova defeated Larisa Neiland in the final, 6–2, 6–2 to win the singles tennis title at the 1993 Pan Pacific Open.
Gigi Fernández and Helena Suková were the defending champions, but competed this year with different partners.
Lindsay Davenport won the singles tennis title at the 2004 Stuttgart Open after World No. 1 Amélie Mauresmo retired due to injury, with the scoreline at 6–2, ret.
Conchita Martínez defeated the defending champion Steffi Graf in the final, 6–3, 6–3 to win the singles tennis title at the 1993 Virginia Slims of Philadelphia.
Steffi Graf defeated Arantxa Sánchez Vicario in the final, 7–6(10–8), 6–1 to win the singles tennis title at the 1993 Family Circle Cup.
Anke Huber defeated Mary Pierce in the final, 6–0, 6–7(4–7), 7–5 to win the singles tennis title at the 1994 Virginia Slims of Philadelphia.
Katrina Adams and Manon Bollegraf were the defending champions, but Adams did not compete this year. Bollegraf teamed up with Zina Garrison-Jackson and lost in the first round to Gigi Fernández and Natasha Zvereva.
There was no women's tournament held in the previous year. Rafaella Reggi was the champion in the 1985 edition. She lost in the second round to Arantxa Sánchez Vicario.
There was no women's tournament held in the previous year. Sandra Cecchini and Raffaella Reggi were the champions in the 1985 edition. Both players competed this year with different partners. Cecchini teamed up with Sabrina Goleš and lost in the second round to tournament runners-up Claudia Kohde-Kilsch and Helena Suková, while Reggi teamed up with Anne White and lost in the first round to Virginia Ruzici and Catherine Tanvier.
Monica Seles was the defending champion, but could not compete this year due to the stabbing received in late April.
Monica Seles was the defending champion and successfully defender her title, by defeating Gabriela Sabatini 6–2, 6–0 in the final.
Jana Novotná and Arantxa Sánchez Vicario were the defending champions, but none competed this year.
Conchita Martínez defeated the two-time defending champion Gabriela Sabatini in the final, 7–5, 6–1 to win the women's singles tennis title at the 1993 Italian Open.
Defending champion Gabriela Sabatini defeated Monica Seles in a rematch of the previous year's final, 7–5, 6–4 to win the women's singles tennis title at the 1992 Italian Open.
Amanda Coetzer was the defending champion, but did not compete this year.
Larisa Neiland and Jana Novotná were the defending champions, but Novotná opted to rest after competing consecutively in the previous two weeks, winning the title at San Diego and finishing as runner-up at Manhattan Beach. Neiland teamed up with Gabriela Sabatini and lost in the semifinals to Pam Shriver and Elizabeth Smylie.
Mary Pierce was the defending champion, but lost in the final to Anke Huber. The score was 6–4, 6–2.