THE big guns are on a collision course at the Bendigo International.
All eight seeds moved into the round of 16 after some brutal displays in the opening round of the second $50,000 event.
Defending champion Casey Dellacqua blitzed qualifier Karis Ryan 6-1 6-1 to continue her winning streak at Nolan Street.
The third seed extended her unbeaten run to 11-straight wins at the Bendigo Tennis Association's courts.
Dellacqua won twice as many points (56-27) as her opponent.
Estonian Anett Kontaveit showed no mercy in dispatching Kiwi qualifier Emma Hayman 6-0 6-0.
The sixth seed will face a tougher proposition - last week's beaten finalist Noppawan Lertcheewakarn - next round.
The Thai fought back from 3-0 down in the first set to beat Alison Bai 7-5 6-4.
Seventh seed Irena Pavlovic belted Slovakia's Zuzana Zlochova 6-1 6-0.
The in-form Frenchwoman presents a huge challenge for the Czech Republic's Petra Krejsova in the last 16.
Krejsova had to give it everything to avoid consecutive first round exits in her 7-5 6-4 triumph over Naiktha Bains.
Eighth seed Monique Adamczak was challenged for two sets by New Zealand's Dianne Hollands.
But the Kiwi couldn't hold on as Adamczak put the foot down in the third.
The Sydneysider clinched victory 6-3 3-6 6-0.
She will play Sally Peers in the next round after the Melbournian accounted for Thai qualifier Varunya Wongteanchai 6-2 6-4.