In August 2016, Quek competed in the Rio Olympic Games. In the group stage, the team won all five of their matches, defeating Australia 2–1, India 3–0, Argentia 3–2, Japan 2–0 and the United States 2–1. A 3–1 quarter-final win over Spain and a 3–0 defeat of New Zealand saw Great Britain reach the final. The team defeated the Netherlands on penalties after a 3–3 draw, winning the first women's hockey gold medal in the Olympics for Great Britain. Quek won her 50th cap for Great Britain during the competition, taking her to more than 125 combined for both England and Great Britain.