[3] Fedoriva represented Russia at the 2008 Summer Olympics in Beijing competing at the 4x100 metres relay, together with Yuliya Chermoshanskaya, Yulia Gushchina and Yevgeniya Polyakova.

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

[4][5] The 2009 European Athletics U23 Championships saw Fedoriva move into longer distances as she won the women's 200 metres title.

Fedoriva was a semi-finalist in the 60 m hurdles at the 2010 IAAF World Indoor Championships, but found greater success over longer sprint distances in the outdoor season: she was a bronze medallist in the 200 m at the 2010 European Athletics Championships and took the gold medal for Europe in that event at the 2010 IAAF Continental Cup.

[2] She made her indoor debut over 400 metres at the 2012 Russian Championships and won the hotly contested final in a time of 51.18 seconds.