Short Track Speed Skating
In March 2013, the 5ft 3in skater became the first British woman to win a World Championship medal in short track when she took 1000m bronze in Hungary. That came a month after she clinched the 1000m World Cup title.
Christie also won gold over 1000m and 1500m at the 2013 European Championships.
The Scot performed respectably on her Olympic debut aged 19 but describes the experience as "a turning point".
She explains: "After Vancouver I felt like that was it - that was all I would ever get from skating, but then I started to think about what could happen if I kept working on all those one percents where I could improve.
"I changed my training and I also changed my lifestyle."
A change in her tactics followed and she now adopts a front-running approach, which is unusual in short track.
Born in Livingston, Scotland, Christie began as a figure skater before taking up short track aged 12. She moved to Nottingham aged 15 to train full-time at the National Ice Centre.
Did you know?
She can play the Alton Towers theme tune on the piano.