At the 2000 World Junior Championships Gatzka won a silver medal in 4x400 m relay with Christian Duma, Steffen Hönig and Bastian Swillims.
Christian | Hans Christian Andersen | Christian Dior | Christian music | Christian cross | Christian Brothers | State Duma | Congregation of Christian Brothers | Christian IV of Denmark | Contemporary Christian music | Christian Slater | Christian rock | Christian metal | Christian Broadcasting Network | The Christian Science Monitor | Southern Christian Leadership Conference | Institute of the Brothers of the Christian Schools | Christian Church | Union of Christian and Centre Democrats | Christian V of Denmark | Christian theology | Christian Marclay | Christian Lindberg | Johann Christian Bach | Christian Kane | International Christian University | Fellowship of Christian Athletes | Christian Settipani | Christian Morgenstern | Christian ministry |