She represented her country at the 2012 Olympics in London, finishing fifth in the women's marathon.

[2] Born in Ternopil, Gamera started her career in athletics as a middle-distance runner.

She broke the Ukrainian record at the Osaka Women's Marathon with a run of 2:24:46, ending the race as runner-up to Risa Shigetomo.

[2] Gamera claimed a second consecutive Osaka International Ladies Marathon title in January 2014, winning in a time of 2:24:37.

All her results from 26 August 2011 to 30 September 2015 were annulled, including the national record of 2:22:09, set at the Osaka Marathon in January 2015.