Claim: Mateusz Chruściński represented Poland at the 2010 Winter Olympics, was coached by his mother but has won a championship.
Evidence: They represented Poland at the 2010 Winter Olympics. They were coached by his mother, Iwona Myldarz-Chruścińska. As a single skater, he is the 2006 Polish Junior national champion and the 2007 senior national silver medalist.