High Quality Content by WIKIPEDIA articles! The 1999 Estoril Open – Women`s Singles was the singles event of the first edition of the WTA Tour Estoril Open; a WTA Tier IV tournament and the most prestiguous women`s tennis tournament held in Portugal. This tournament was part of the ITF Circuit last year, and it was won by Barbara Schwartz. Schwartz was eliminated in the second round of this year`s event.