Sarissa was inspired by her father to make her first steps into the world of triathlon. She did her first triathlon at the age of 13 and became hooked. In 2007 she moved to Sittard to become a full time professional triathlete with the aim to qualify for the Olympics. Highlights during her years at the National Triathlon Training Center include a second place at the U23 World Championships and winning the European Cup in Genève.
In 2015 Sarissa made her long-distance debut by placing second at the first ever Ironman Maastricht. Other notable results are a second place at Challenge Geraardsbergen 2017 and placing second at the Challenge European Championship in Almere.