| Singles | |
|---|---|
| 1989 Virginia Slims of Washington | |
| 1988 Champion |  Martina Navratilova |
| Champion |  Steffi Graf |
| Runner-up | Zina Garrison |
| Score | 6–1, 7–5 |
Martina Navratilova was the defending champion of the singles title at the Virginia Slims of Washington tennis tournament but did not compete that year.
Graf won in the final 6–1, 7–5 against Zina Garrison.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Steffi Graf (champion)
Manuela Maleeva (quarterfinals)
Natasha Zvereva (semifinals) Zina Garrison (final) Barbara Potter (first round) Larisa Savchenko (first round)
Helen Kelesi (quarterfinals)| First round | Second round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||||||||
| 1 | S Graf | 6 | 6 | |||||||||||||||||||||||||||||||
| S Martin | 1 | 1 | 1 | S Graf | 6 | 6 | ||||||||||||||||||||||||||||
| Q |  R Baranski | 3 | 1 | C Bassett-Seguso | 0 | 0 | ||||||||||||||||||||||||||||
| C Bassett-Seguso | 6 | 6 | 1 | S Graf | 6 | 6 | ||||||||||||||||||||||||||||
 I Demongeot | 6 | 6 | 8 | H Kelesi | 0 | 1 | ||||||||||||||||||||||||||||
| Q | K Adams | 3 | 3 | I Demongeot | 3 | 4 | ||||||||||||||||||||||||||||
| P Louie-Harper | 7 | 3 | 1 | 8 | H Kelesi | 6 | 6 | |||||||||||||||||||||||||||
| 8 | H Kelesi | 6 | 6 | 6 | 1 | S Graf | 6 | 6 | ||||||||||||||||||||||||||
| 4 | N Zvereva | 7 | 6 | 4 | N Zvereva | 3 | 4 | |||||||||||||||||||||||||||
| C Benjamin | 5 | 1 | 4 | N Zvereva | 6 | 6 | ||||||||||||||||||||||||||||
| W White | 6 | 6 | 4 | J Ingram | 2 | 4 | ||||||||||||||||||||||||||||
| J Ingram | 4 | 7 | 6 | 4 | N Zvereva | 6 | 6 | |||||||||||||||||||||||||||
| T Phelps | 6 | 1 | 2 | L Meskhi | 2 | 0 | ||||||||||||||||||||||||||||
| L Meskhi | 2 | 6 | 6 | L Meskhi | 6 | 6 | ||||||||||||||||||||||||||||
| E Pfaff | 6 | 3 | 6 | E Pfaff | 0 | 2 | ||||||||||||||||||||||||||||
| 6 | B Potter | 3 | 6 | 2 | 1 | Steffi Graf | 6 | 7 | ||||||||||||||||||||||||||
| 7 | L Savchenko | 0 | 2 | 5 | Zina Garrison | 1 | 5 | |||||||||||||||||||||||||||
 M Seles | 6 | 6 | M Seles | 6 | 6 | |||||||||||||||||||||||||||||
 E Reinach | 5 | 3 | R White | 3 | 0 | |||||||||||||||||||||||||||||
| R White | 7 | 6 | M Seles | 6 | 6 | |||||||||||||||||||||||||||||
| A Henricksson | 6 | 6 | 3 | M Maleeva | 2 | 4 | ||||||||||||||||||||||||||||
 M Javer | 0 | 3 | A Henricksson | 4 | 6 | 3 | ||||||||||||||||||||||||||||
| LL |  A Holíková | 2 | 4 | 3 | M Maleeva | 6 | 4 | 6 | ||||||||||||||||||||||||||
| 3 | M Maleeva | 6 | 6 | M Seles | ||||||||||||||||||||||||||||||
| 5 | Z Garrison | 6 | 6 | 5 | Z Garrison | w/o | ||||||||||||||||||||||||||||
| S Sloane | 0 | 3 | 5 | Z Garrison | 6 | 6 | ||||||||||||||||||||||||||||
| M L Daniels | 6 | 4 | 6 | M L Daniels | 2 | 0 | ||||||||||||||||||||||||||||
| Q | A Leand | 4 | 6 | 3 | 5 | Z Garrison | 6 | 6 | ||||||||||||||||||||||||||
| D van Rensburg | 6 | 6 | LL | G Fernández | 4 | 0 | ||||||||||||||||||||||||||||
| Q | S Collins | 4 | 4 | D van Rensburg | 2 | 0 | ||||||||||||||||||||||||||||
| N Tauziat | 7 | 6 | 6 | LL | G Fernández | 6 | 6 | |||||||||||||||||||||||||||
| LL | G Fernández | 5 | 7 | 7 | ||||||||||||||||||||||||||||||
Martina Navratilova was the defending singles champion of the Virginia Slims of Washington tennis tournament and won in the final 6–1, 6–1 against Sylvia Hanika.
Chris Evert was the defending champion but did not compete that year.
Zina Garrison was the defending champion but lost in the semifinals to Martina Navratilova.
In the Doubles competition of the 1988 Virginia Slims of California tennis tournament, Hana Mandlíková and Wendy Turnbull were the defending champions but they competed with different partners: Mandlíková with Jana Novotná and Turnbull with Zina Garrison.
Hana Mandlíková was the defending champion but lost in the semifinals to Martina Navratilova.
Elise Burgin and Pam Shriver were the defending champions but they competed with different partners that year, Burgin with Robin White and Shriver with Martina Navratilova.
Monica Seles was the defending champion but did not compete that year.
Katrina Adams and Manon Bollegraf were the defending champions but they competed with different partners that year, Adams with Zina Garrison-Jackson and Bollegraf with Martina Navratilova.
Martina Navratilova was the defending champion of the singles event but lost in the semifinals of the 1989 Virginia Slims of California tennis tournament to Larisa Savchenko.
Katrina Adams and Zina Garrison were the defending champions of the doubles event but lost in the quarterfinals of the 1989 Virginia Slims of Florida tennis tournament to Manon Bollegraf and Eva Pfaff.
Chris Evert was the defending champion but lost in the final 3–6, 6–1, 6–4 against Monica Seles.
Katrina Adams and Zina Garrison were the defending champions and won in the final 6–3, 6–4 against Gigi Fernández and Lori McNeil.
Stephanie Rehe was the defending champion but did not compete that year.
Chris Evert was the defending champion of the singles event at the Virginia Slims of Los Angeles tennis tournament but did not compete that year.
Patty Fendick and Jill Hetherington were the defending champions of the doubles event at the 1989 Virginia Slims of Los Angeles tennis tournament but lost in the quarterfinals to Elizabeth Smylie and Janine Tremelling.
Steffi Graf was the defending champion but did not compete that year.
Jenny Byrne and Michelle Jaggard were the defending champions but they competed with different partners that year, Byrne with Janine Tremelling and Jaggard with Katerina Maleeva.
Two-time defending champion Martina Navratilova defeated Chris Evert in the final, 6–2, 6–2 to win the singles tennis title at the 1988 Virginia Slims of Chicago. This was the 80th and the last time these two legends faced each other in a professional match, with Navratilova ending their rivalry 43–37 in her favour.
Steffi Graf defeated Martina Navratilova in the final, 6–4, 7–5, 2–6, 6–2 to win the singles tennis title at the 1989 Virginia Slims Championships. It was her second Tour Finals singles title.
Martina Navratilova was the defending champion but lost in the finals to top seed Monica Seles 3–6, 6–2, 6–1.