She is the daughter of Scottish former athletes Ewan McAslan and Fiona Hargreaves. Her father was twice the British Universities triple jump champion. Her mother ran for Scotland at the 1986 Edinburgh Commonwealth Games and was also once the British Student 400m Champion.[4] Kirsten McAslan was the champion of the British Universities and Colleges (BUCS) Championships in 2013. She is also a graduate of Biochemistry from the University of Bath.
Career
As a junior, McAslan represented Great Britain at the 2011 European Junior Championships. She finished fourth in her heat. She later anchored the junior quartet to a gold medal in the 4 × 400 m relay three days later.[5]
In 2014, she ran for Scotland in the 4 × 400 m relay at the Glasgow Commonwealth Games. The Scottish team placed fourth in their heat and did not make it to the final of the event.[6]
On 4 January 2015, McAslan ran the fastest 600 m by a Scottish athlete in a time of 1:26.22. This was a world lead and personal best for the young athlete. McAslan's time beat the mark of Linsey MacDonald, who ran 1:27.4 in December 1981.[9]