At the London Olympics, Sivkova defeated Jung Hyo-jung of Korea in the table of 32, but was stopped in the next round by Romania's Anca Măroiu. In the team event, Russia prevailed easily over Ukraine, then met China in the semi-finals. The match was very tight. Sivkova entered the piste on the last relay with China on the lead. She levelled the score, but lost by one touch in overtime and Russia came away with no medal. Deeply upset by these failures, Sivkova took a break and did not go back to training before January 2013.