Reid represents the North West Triathlon Club and competes for French team Poissy.
Also an accomplished runner and swimmer, Reid is a former NI Cross country champion, and won a medal at the World University Cross Country championships with Team Ireland.
Aileen trained as a physical education teacher prior to beginning her triathlon career.
She competed in the Women's triathlon at the 2012 Summer Olympics, where she finished in a disappointing 43rd place, almost 10 minutes behind winner Nicola Spirig. Reid suffered a crash on the first lap of the bike course as a result of wet roads.
She married in October 2012, and raced under her married name thereafter.
She finished the 2013 season ranked 8th in the World, with a silver medal at the ITU World Triathlon Series Grand Final in London. She has had two other World triathlon series podiums with a silver medal in Madrid in June 2012, and Hamburg in July 2010.
Reid competed in the Women's triathlon at the Rio 2016 Olympics and finished in 21st place.
She retired in July 2017.
The following list is based upon the official ITU rankings and the Athlete's Profile Page. The following events are triathlons (Olympic Distance) and belong to the Elite category.
|2008-06-27||University Triathlon Championship||Erdek||13|
|2008-09-27||BG World Cup||Lorient||22|
|2009-05-02||Dextro Energy World Championship Series||Tongeyong||22|
|2009-06-21||Dextro Energy World Championship Series||Washington DC||25|
|2009-08-15||Dextro Energy World Championship Series||London||DNF|
|2010-06-05||Dextro Energy World Championship Series||Madrid||23|
|2010-07-17||Dextro Energy World Championship Series||Hamburg||3|
|2010-08-14||Dextro Energy World Championship Series||Kitzbühel||16|
|2010-09-08||Dextro Energy World Championship Series, Grand Final||Budapest||17|
|2010-10-23||Asian Cup||Hong Kong||1|
BG = the sponsor British Gas · DNF = did not finish
- Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Aileen Morrison". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 15 October 2018. Retrieved 5 August 2012.
- "Irish triathlon: Morrison struggles to 43rd at Hyde Park". bbc.co.uk.
- "Reid finishes 21st at Rio triathlon". ITV.com. 20 August 2016. Retrieved 23 August 2016.
- "Triathlon.org - Results Page". Archive.triathlon.org. Archived from the original on 3 March 2016. Retrieved 23 August 2016.