England's Nicola Adams and Natasha Jonas won their opening bouts to reach the last eight at the Women's European Championships in the Netherlands.
Flyweight Adams forced Ireland's Katie Rowland to retire after two rounds, while light-welterweight Jonas stopped Swiss Evelyn Ziegler in round one.
Lightweight Chantelle Cameron lost 20-9 to Russia's Sophia Ochigava.
Middleweight Savannah Marshall beat Sinead Kavanagh of Ireland, while Lisa Whiteside and Nina Smith also won.
Marshall overwhelmed Kavanagh 24-3 in a bout which saw her opponent take a standing count in the third round.
Whiteside saw off Italy's Marzia Verrecchia 12-7 in the 57kg, while fellow featherweight Smith overcame Helina Bruyevich of Belarus 21-9 in the 54kg.
All six boxers representing England vest in Rotterdam, and all but Whiteside are also members of GB Boxing's Olympic squad.
The three Olympic weight categories in women's boxing are flyweight, middleweight and lightweight.