Martina Navratilova was the defending champion but did not compete at the Dow Classic in 1990.
Zina Garrison won in the final against Helena Suková, 6–4, 6–1.
Seeds The top eight seeds receive a bye into the second round.
Zina Garrison (Champion) Helena Suková (final) Rosalyn Fairbank-Nideffer (semifinals) Nathalie Tauziat (semifinals) Gigi Fernández (quarterfinals) Gretchen Magers (second round) Anne Smith (quarterfinals) Larisa Savchenko-Neiland (quarterfinals) n/a Laura Golarsa (third round) Amanda Coetzer (first round) Lori McNeil (third round) Angélica Gavaldón (first round) Betsy Nagelsen (third round) Nana Miyagi (first round) Claudia Kohde-Kilsch (third round)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
External links 1990 Dow Classic draws ITF tournament details ITF singles results page