In 2009, Davletbayeva won Kazakhstani Women's Chess Championship. In 2011, she won the Women's Asian Zonal Tournament and was given the right to participate in the Women's World Chess Championship. In 2012, in Khanty-Mansiysk, Davletbayeva made her debut at the Women's World Chess Championship, where in the first round she lost to Tatiana Kosintseva.