At the 2006 Commonwealth Games in Melbourne, Australia, Kitchen beat World No. 1 Nicol David of Malaysia in the third-place match to capture the women's singles Bronze Medal. She also won a Silver Medal in the women's doubles, partnering Tamsyn Leevey. Earlier in the year, Kitchen and Leevey won the women's doubles title at the World Doubles Squash Championships. In 2004, Kitchen finished runner-up in the mixed doubles at the World Doubles Championships, partnering Glen Wilson.