Korotkevich competed twice at the Summer Olympics, once for the Unified Team in 1992 and later for Russia in 2000. Her best performance was fourth place in 1992. She made four appearances at the World Championships in Athletics and had a best finish of fourth in 1999. She was a two-time discus champion at the Russian Athletics Championships (1993 and 1997). She won two international medals over her career: a bronze at the 1985 European Athletics Junior Championships and gold at the 1993 European Cup. She ranked number one in the world in the 1993 athletics season with a mark of .