 She won gold medals in the fencing competition in both 1950 and 1954 and she represented England and won a bronze medal in the individual foil at the 1958 British Empire and Commonwealth Games in Cardiff, Wales.Glen-Haig eventually moved to West Kensington, London, where she worked at a hospital as district administrator from 1974 until 1982, the year that she was made one of the first female members of the International Olympic Committee.She was also Chairman of the Central Council of Physical Recreation during the 1970s.