Final score 6–7, 6–3, 7–6 | ||
Pam Shriver was the defending champion but did not compete that year.
Martina Navratilova won in the final 6–7, 6–3, 7–6 against Lori McNeil.
Seeds
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.
References
1989 Toray Pan Pacific Open – Singles Wikipedia(Text) CC BY-SA