You can help expand this article with text translated from the corresponding article in German. (April 2022) Click [show] for important translation instructions. View a machine-translated version of the German article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Christiane Knacke]]; see its history for attribution. You may also add the template {{Translated|de|Christiane Knacke}} to the talk page. For more guidance, see Wikipedia:Translation.

Christiane Knacke

Christiane Knacke in 1978
Personal information
Born	(1962-04-17) 17 April 1962 (age 62) Berlin, Germany
Height	1.64 m (5 ft 5 in)
Weight	60 kg (130 lb)
Sport
Sport	Swimming
Club	SC Dynamo Berlin
Medal record Women's swimming Representing  East Germany Olympic Games 1980 Moscow 100 m butterfly European Championships 1977 Jönköping 100 m butterfly

Christiane Knacke (later Driesener then Sommer, born 17 April 1962) is a retired swimmer from East Germany who specialized in the 100 m butterfly. In this event she won a silver medal at the 1977 European Aquatics Championships and a bronze medal at the 1980 Summer Olympics.^[1] She was the first woman to break the one-minute barrier in the event, when she clocked 59.78 on 28 August 1977, setting a new world record.^[2]

In 1989 she admitted to using performance-enhancing drugs against her will.^[2]

She married twice, changing her last name to Driesener and then to Sommer.^[1] Her daughter Jennifer was born in 1983.^[2]

Wikimedia Commons has media related to Christiane Knacke.

Records
Preceded by Kornelia Ender	Women's 100 metre butterfly world record holder (long course) 28 August 1977 – 3 July 1978	Succeeded by Andrea Pollack

This article about a swimming Olympic medalist for Germany is a stub. You can help Wikipedia by expanding it.

• v
• t
• e