While representing Belarus, he won the European Championships in 2005.

Currently he is back to representing native Belarus.

He represented Belarus at the 1996 Summer Olympics in Atlanta, Georgia.

She represented Belarus at the 2002 Winter Olympics.

She represented Belarus at the 2010 Winter Olympics in Vancouver.

Kostitsyn represented Belarus extensively at the under-18 and -20 levels.

One male fencer represented Belarus in 1996.

On the 30th of August 2009, also during the air show, another two pilots who represented Belarus were killed when their plane crashed.

He has represented Belarus in international play.

Four fencers, all men, represented Belarus in 2000.