Medals: 1 Bronze (1 Total)
Margaret Edwards had the following podium finishes at major championships: 3rd in the 1956 Olympics 100 metres Backstroke; 1st in the 1958 British Empire and Commonwealth Games 4×110 yards medley (with Anita Lonsbrough, Jean Oldroyd, and the non-Olymian Anne Marshall), 2nd in the 1958 British Empire and Commonwealth Games 110 yards Backstroke. In the British Empire and Commonwealth Games Edwards competed for England.
|1956 Summer||17||Melbourne||Swimming||Women's 100 metres Backstroke||Great Britain||GBR||3||Bronze|
|1956 Summer||17||Melbourne||Swimming||Great Britain||Final||3||1:13.1|
|1956 Summer||17||Melbourne||Swimming||Great Britain||Round One||Heat Three||1||QU/OR||1:13.0|