Gao Ling
Kostiuczyk played the 2007 BWF World Championships in mixed doubles with Robert Mateusiak. They were defeated in quarterfinals by Zheng Bo and Gao Ling of China, 16-21, 17-21. She also played women's doubles with Kamila Augustyn and lost in the first round. They won the silver medal at the 2008 European Badminton Championships. At the Belarusian National Badminton Championships she won 7 titles.