The Belgian struggled to defeat Slovak JarmilaGajdosova on Wednesday, but was far more impressive in dismissing 14th seed Julia Goerges 6-2 7-5 on Thursday.
Russian seeds Svetlana Kuznetsova, Anastasia Pavlyuchenkova and Maria Kirilenko also went through, with the latter to face Canada's Aleksandra Wozniak after eliminating Australia's JarmilaGajdosova.