1989 OTB Open – Women's Singles

Gretchen Magers was the defending champion but lost in the semifinals to Laura Gildemeister. Gildemeister won in the final 6–4, 6–3 against Marianne Werdel.

Source: Wikipedia DBpedia

What is 1989 OTB Open – Women's Singles subject of?

1989 OTB Open – Women's Singles is subject of 1989 WTA Tour and OTB Open.