She won a bronze medal in the high jump at the 1970 British Commonwealth Games in Edinburgh.

[1] Her daughter Lindsey Maguire competed for Great Britain in rowing at the 2012 Summer Olympics in London.

[1] Walls competed in the high jump event at the 1970 British Commonwealth Games in Edinburgh.

[7] In 1977, Walls broke the Scottish national high jump record, after clearing a height of 1.83 metres (6 ft 0 in).

[3] Walls was a winner of the 1969 BBC Scotland Sports Personality of the Year award, along with Bernard Gallacher.