Kyle competes in the 100m and 200m in the 1956 Summer Olympics in Melbourne, Australia, and subsequently in the 1960 Summer Olympics in Rome, Italy, and the 1964 Summer Olympics in Tokyo, Japan, where she reaches the semi-finals of both the 400m and 800m. She takes the bronze medal in the 400m at the 1966 European Athletics Indoor Championships in Dortmund, Germany. She wins four gold medals in W45 Category at the 1977 World Masters Athletics Championships in Gothenburg, Sweden, in the 100m, 400m, high jump and long jump. She holds World Masters records at W40 for the 100m (12:00 secs) and 400m (55.30 secs) and W45 100m (12.50 secs) and W50 long jump at 5.04m.
In field hockey, Kyle gains 58 Irish caps as well as representing three of the four Irish provinces (Leinster, Munster and Ulster) at different stages of her career. She is named in the World All Star team in 1953 and 1959. She is also a competitor in tennis, swimming, sailing and cricket and works as a coach. She is chair of Coaching NI. In 2006, she is awarded the honorary degree of Doctor of the University (DUniv) from the University of Ulster.
Kyle is awarded the Lifetime Achievement Award at the 2006 Coaching Awards in London in recognition of her work with athletes at the Ballymena and Antrim Athletics Club. Earlier in 2006 she is one of 10 players who are initially installed into Irish hockey’s Hall of Fame. She is appointed Officer of the Order of the British Empire (OBE) in the 2008 New Year Honours.