Being especially strong in free skating, Errath benefited from the reduction in value of compulsory figures introduced in 1972. She became World champion in 1974 and a three-time European champion between 1973 and 1975.
Errath was formerly married to Ulrich Trettin, a former East German tennis champion, with whom she has two children, Jenny and Marcus. She remarried in 2006 and is now known as Christine Stüber-Errath.
Errath currently works for the German TV station MDR, which produces programs in the German states of Saxony, Thuringia, and Saxony-Anhalt. She hosts the show "Außenseiter Spitzenreiter" (“Top model Outsider”) with Hans-Joachim Wolfram (creator of the Dynamo Dresden hymn "Dynamo Fever").