She made her Grand Slam debut in 2013 with a wildcard into the qualifying draw of the Australian Open and later that year won her maiden ITF title in Cairns.

[citation needed] In 2011, Hadzic continued playing ITF events and repeated her quarterfinal finish at the Cairns Tennis International.

[3] In January, Hadzic made her WTA debut with a wildcard into qualifying for the Sydney International, losing to Chanelle Scheepers in straight sets.

In February, she had a career-best win, defeating the world's number-one ranked junior Irina Khromacheva in qualifying for a $25k tournament in Launceston.

She then made her senior Grand Slam debut with a wildcard into Australian Open qualifying, where she lost to Michelle Larcher de Brito.

[6] Partnering Jessica Moore, she was awarded a wildcard into the main draw of the Australian Open where they faced the 11th-seeded team of Anna-Lena Grönefeld and Mirjana Lučić-Baroni, both former Grand Slam champions, losing in straight sets.