Career
Korshikova competed in two swimming events at the 2000 Summer Olympics in Sydney. On the third day of the Games, Korshikova placed thirty-fifth in the 200 m freestyle. Swimming in heat two, she enjoyed the race with an early lead, but faded shortly to a fourth seed in 2:08.08, over three body lengths behind leader Lára Hrund Bjargardóttir of Iceland.
Two days later, Korshikova, along with Yekaterina Tochenaya, Nataliya Korabelnikova, and Anjelika Solovieva, placed fourteenth in the 4×200 m freestyle relay (8:4121).