Great Britain's women finished top of Pool A with a 100% record after beating China 2-0 in their latest match of the World League semi-finals in Spain.
Sophie Bray scored twice, making her the tournament's leading scorer with five goals, while Laura Unsworth won her combined 150th cap.
Danny Kerry's side will now face South Africa in Thursday's quarter-finals.
The top three sides in Valencia will qualify for the 2016 Rio Olympics.
Kerry was delighted with the result, saying: "It was a disciplined performance. Our second goal was fantastically executed by Sophie Bray, who, like the rest of the team is having an excellent tournament."
There are 10 countries competing in two pools of five in Spain, with the top four nations in each reaching the knockout phase. So far, Britain have beaten Canada 4-2, Argentina 2-0 and hosts Spain 2-0.
A further 10-team semi-finals tournament takes place in Antwerp in July.
Seven teams that progress from both semi-final events will take part in the World League finals from 21-29 November in Argentina.