<prompt> Pedzisa mutsara unotevera: Muna 2010, Yefimova akahwina menduru dzendarama pa  <response>: 2010 European Aquatics Championships mu50 m uye 100 m breaststroke. Muna 2012, Yefimova akagamuchira bronze pa 200 m pa 2012 Summer Olympics, aine 2: 20.92. Gore rakatevera pa2013 World Aquatics Championships muBarcelona akakunda mumakwikwi e200 m nenguva dza 2:19.41. Mumakwikwi emamita makumi mashanu, muRussia akawana rekodhi yenyika nyowani ye29.78 iyo yakaputswa mumasemifaira naRūta Meilutytė. Yefimova akakunda mufainari aine 29.52. 