Along with Alla Beknazarova, he is the 2001 Karl Schäfer Memorial bronze medalist and 2001 Ukrainian national champion.
In the 1998–99 season, they medaled at their ISU Junior Grand Prix assignments, taking gold in France and bronze in Germany,[4][5] and placed fifth at the 1999 World Junior Championships, held in Zagreb in November 1998.
In the second half of the season, they competed on the senior level at the 1999 World Championships in Helsinki.
In the 2000–01 season, Beknazarova/Kocherzhenko won gold at two JGP events and qualified for the ISU Junior Grand Prix Final, where they placed fourth.
[citation needed] Kocherzhenko moved to the United States and works as a skating coach in Santa Monica, California.