Career
On 28 October 1973 in Waldniel, she became the first German woman to complete the marathon in under three hours (2:59:26. Under her maiden name Christa Kofferschläger). She set another German record (2:53:00) at the Boston Marathon on 15 April 1974.
Both times were also European bests.
The time was not recognized as a world record because the course was 745 m too short. On 3 May 1975, she succeeded at setting the world record at Dülmen with a time of 2:40:16.
On 10 September 1977, her victory at the Berlin Marathon in 2:34:48 gave her another world record. At the 1983 World Championship in Helsinki she placed 19th (2:40:43).
World record in the hour run: 16,872 meters, 24 May 1975 in Bochum
World record in the 10000 metres: 34:01.4, 20 August 1975 in Wolfsburg
World record in the 20000 metres: 1:10:50.2, 25 October 1975 in Essen
Four world records in 25km road race: 1:31:52, 23 March 1975 in Düren.
1:31:01, 13 September 1975 in Rheydt. 2 May 1976 in Ameln; 1:28:33, 22 November 1978 in Griesheim
German Record in 100km run: 7:50:37, 4 September 1976 in Unna
in Marathon: 1975, 1976, 1977, 1978 and 1980
in 25 Kilometer Road race: 1977, 1978, 1979 and 1980
in 15-Kilometer Road race: 1988
in Cross country 1978.