[7] As a junior, Marton achieved a number of international benchmark results: She has also competed in the 2007 World Taekwondo Championships competing in the bantamweight and welterweight, winning two fights, the 2009 World Taekwondo Championships finishing in the round of 16, and the 2011 World Taekwondo Championships in the lightweight division, losing to Marina Sumić in the quarter-finals [9] Marton secured a bronze at the 2011 Universiade Games in Shenzhen, China.

Marton won the women's lightweight gold medal at the 2013 World Taekwondo Championships,[10] becoming Australia's first ever world taekwondo champion,[11] after breaking the tied scores and defeating Korean Kim Huy Lan with just 4 seconds left on the clock.

[15] Marton is engaged[16] to fellow Olympic taekwondo athlete Safwan Khalil,[17] whom she met while she was a teenager.

[18] The pair were Australia's only taekwondo representatives at the 2012 Summer Olympics, where Marton narrowly missed out on winning a bronze medal.

[23] She has a brother, Jack, and sister, Caroline Marton, who are also her training partners and whom she describes as world-class athletes.