Nadia Petrova swept past Kirsten Flipkens to seal her place in the semi-finals of the Korea Open in Seoul.
The top-seeded Russian cruised to a 6-2 6-1 success over her Belgian opponent on Friday.
Petrova broke serve five times on her way to victory in just over an hour.
Alisa Kleybanova, the fifth seed, was an equally comprehensive winner, seeing off fellow Russian Ekaterina Makarova 6-1 6-2.
Kleybanova will now play Agnes Szavay, who made it three seeds in the last four as the eighth-seeded Hungarian saw off Japan’s Kimiko Date Krumm 6-2 6-7 (3/7) 6-3.
Klara Zakopalova, of the Czech Republic, was a 7-5 6-3 winner over wildcard and former world number one Dinara Safina in the other last-eight tie.