Non is a member of the UK Sport Lottery Funded World-Class Performance Squad and is based at the Leeds Performance Centre. Non was the ITU World Champion in 2013 and represented Team GB at the Rio 2016 Olympic Games, where she finished fourth.
Non won the ITU world title in London in 2013 having won the U23 title the previous year.
Competing in her first Olympics in Rio in August 2016, Non finished in an agonising fourth place, losing out on the bronze medal to teammate and friend Vicky Holland in a sprint to the finishing line.
Non made a successful transition from track running to triathlon. 2012 was a breakthrough year, with senior gold in the ITU Triathlon Mixed Relay and U23 gold at the ITU World Championships. 2013 started with a win in the ITU World Triathlon Series in Madrid, before going on to win the world title in London. Along the way she achieved podium finishes in San Diego, Hamburg and Stockholm.
Due to injury, Non's entire 2014 season was missed, but she came back strongly in 2015 to finish second at the Rio Olympic Test Event and the ITU World Triathlon Grand Final in Chicago – securing Olympic selection in the process. 2017 was again affected by injury, but she did achieve an ITU World Cup win in Chengdu, China.
2018 was a mixed year including the highs of captaining Team Wales at the Commonwealth Games and revisiting an ITU World Series podium in Yokohama to the lows of missing her home World Series race in Leeds through illness.
In 2019, Non secured a memorable win in Hamburg, her first ITU World Triathlon Series medal of the year.
Non was born in Bridgend, grew up in Swansea and went to University in Birmingham before relocating to Leeds.
She changed her focus from running (she was Welsh Schools 1,500m champion in ’02, ’03 and ’04) to triathlon after a series of injuries kept her off the track. Non had been picked out as a bright young running talent in 2004 when she was invited to join Kelly Holmes on the first ever 'On Camp with Kelly' at a camp in South Africa. In 2006 she finished 3rd in the 3000m (senior) at the AAA Indoor championships. She took up triathlon seriously with the University of Birmingham Triathlon team.