Carmen Marton first tasted international taekwondo success as a junior, winning gold at the Korean Open in 2000. The following year she won a silver medal at the Junior Asian Championships in Taiwan and followed it up with another silver in 2002 at the World Cup in Japan. She won a bronze medal at the 2003 Australian Youth Olympic Festival and featured on the podium a number of times in the following years. Encouraged by these achievements but unlucky to miss selection for the Athens Olympics, Marton won a bronze medal at the 2005 World Championships in Spain. She was selected for the Beijing 2008 Olympic Games and reached the quarter-finals.
Marton’s second trip to Olympic competition was alongside fiancé Safwan Khalil as the pair were Australia’s only taekwondo representatives at the London 2012 Games. Marton competed in the U/67kg division. After going down in the semi finals to eventual silver medallist Nur Tatar of Turkey (6-0), Marton then fought for the bronze eventually losing to Germany’s Helena Fromm and finished the Games in fifth place.