Stuttgart, Germany – No. 3 Jessica Pegula defeated Magdalena Frech 6-1, 6-1 on Thursday.
Pegula won the Charleston Open this month and only took 59 minutes to expel her Polish opponent in an indoor clay game.
The third-seed American will next face Ekaterina Alexandrova in the Charleston semifinal rematch. Alexandrova went forward by defeating Mirra Andreeva, the sixth seed, 6-3, 6-2.
The fourth seed Coco Gauff also won 6-1, 6-1, eliminating Ella Seidel in 57 minutes to play the quarterfinals against Jasmine Paolini of the fifth seed, who beat Jule Niemeier 6-1, 7-5.
The first sub-Aryna Sabalenka walked to the quarterfinals after withdrawing from Anastasia Potapova due to injury. Sabalenka will face Elise Mertens.
