[1] Polyakova represented Russia at the 2008 Summer Olympics in Beijing competing at the 100 metres sprint.

[1] Together with Aleksandra Fedoriva, Yulia Gushchina and Yuliya Chermoshanskaya she also took part in the 4x100 metres relay.

In their first round heat they placed second behind Jamaica, but in front of Germany and China.

With this result they qualified for the final in which they sprinted to 42.31 seconds, the first place and the gold medal.

[1] In August 2016, she and her three Russian teammates were stripped of their Olympic gold medal due to a doping violation by Chermoshanskaya.