Considered an athletics prodigy as a junior, she is a former 5000 metres European Junior Champion (2005). She was bronze medallist in the 2007 European Junior Championships in Hengelo. In December 2006, Pidgeon, the 2005 silver-medalist at the European Junior Cross Country Championships, was in the victorious junior female team at the European Cross Country Championships. She finished fourth individually behind fellow Briton, Stephanie Twell.
At the World Cross Country Championships in Mombasa on 24 March 2007, Pidgeon finished 17th; the second British runner and the second European.  The Great Britain & NI team finished 5th; the top European team.
Having failed to qualify for the 2012 Summer Olympics, and dogged by injury and form issues since leaving the junior ranks, Pidgeon announced her retirement from the sport, at the age of 24, in January 2014.
- 1500 Metres 4:17.83 Solihull 25 June 2005
- One Mile 4:50.68 Oxford 6 May 2004
- 3000 Metres 9:06.87 Twickenham 7 June 2006
- 5000 Metres 15:41.00 Solihull 24 June 2006
- 10 Kilometres 34:28 Bourton-on-the-Water 20 February 2005
- 2000 Metres Steeplechase 6:37.76 Altitude Potchefstroom 24 April 2006
- 3000 Metres Steeplechase 10:06.12 Bedford 3 July 2005
- Emily Pidgeon profile at IAAF
- IAAF Official Results - Junior Race Women from 2007-03-24 Retrieved 2007-08-13
- Tom Knight (2006-08-01). "Pidgeon future in doubt after row". Telegraph.co.uk. Retrieved 2007-08-13.
- Neil Wilson (2007-03-22). "Budding superstar - Sportsmail sets up our Emily with advice from Olympics legend Zola". Daily Mail. Retrieved 2007-08-13.
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