It was neck and neck between Koneru and Hou Yifan. However Koneru managed to win her final round vs Marie Sebag while Hou drew her game vs compatriot Shen Yang.
After the win Koneru said reservedly that "Overall I could not really play up to my level". (full interview at FIDE website)
Full story: http://istanbul2009.fide.com/humpy-koneru-wins-istanbul-grand-prix.html
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