Sian is a member of the UK Sport Lottery Funded World-Class Performance Squad based at Leeds Triathlon Performance Centre. Having taken up the sport at the age of just seven, she has won medals at European junior and under 23 level.
Sian competed in and won her first ever multisport event aged seven. It was an Aquathlon event in Coventry and she has been winning races ever since.
In 2014, aged 17, she won a silver medal competing for Team Europe in the Mixed Team Relay event at the Nanjing Youth Olympic Games in China. She also finished 8th in the individual event, representing Team GB. She has also won medals in European Cup and Championship events.
As a former English Schools 1500m Champion and National 1500m Champion, it is no surprise that Sian’s strongest event in triathlon is the run. She also represented England Junior girls at cross country in 2011 - her first international vest. She has been part of the Dame Kelly Holmes’ 'On Camp with Kelly' programme for talented middle-distance athletes (Non Stanford has also been part of this).
Her first international triathlon was in 2013. She helped Great Britain to win the European Junior Mixed Relay in that year as well as competing in the ITU World Championships in Hyde Park, London.
At the age of 18, Sian was diagnosed with Crohn’s disease. She has continued to deliver high class results despite a disease that can, at times, be debilitating.