Vanessa Atkinson (NED) bt Aisling Blake (IRL) 9-5, 9-7, 9-0
 Kasey Brown (AUS) bt  Samantha Teran (MEX) 9-6, 9-5, 9-1
 Isabelle Stoehr (FRA) bt [Q] Karen Kronemeyer (NED) 9-6, 9-1, 9-4
 Madeline Perry (IRL) bt  Raneem El Weleily (EGY) 9-7, 9-6, 9-2
The top four seeds will contest the semi-finals of the Women's Atwater Cup after straightforward straight games wins in the quarter-finals of the WISPA World Tour Silver squash event at Club Atwater in Montreal, Canada.
It was the end of the road for Dutch qualifier Karen Kronemeyer and unseeded Irish international Aisling Blake, both of whom had secured unexpected places in the last eight after notable seeding upsets in the first round.
Fourth seed Isabelle Stoehr, the record 11 times French national champion, dismissed Kronemeyer 9-6, 9-1, 9-4 and will now meet Ireland's Madeline Perry for a place in the final.
Perry, the second seed, was in commanding form as she despatched rising Egyptian star Raneem El Weleily, the No7 seed, 9-7, 9-6, 9-2.
Dutch favourite Vanessa Atkinson defeated Blake 9-5, 9-7, 9-0. The former world number one from The Hague now takes on Australian Kasey Brown, the third seed from New South Wales who beat fifth-seeded Mexican Samantha Teran 9-6, 9-5, 9-1.
 Vanessa Atkinson (NED) v  Kasey Brown (AUS)
 Madeline Perry (IRL) v  Isabelle Stoehr (FRA)