It's a career that started playfully along the dirt tracks of Ramingining in the Northern Territory's remote Arnhem Land, but now Briseis Brittain is steely focused as she steps out onto international tracks.

The 17-year-old runs because it feels "fun and free", and now she's representing Australia at the World Para Athletics Championships in New Delhi, India.

"I am so excited to represent Australia … racing against people in different countries," Briseis says.

Shoulders back, chin high, Briseis beams as she steps out in green and gold.

It's the first time she's left Australia, and the international debut also marks a milestone for her community.

"I am the first Arnhem Land woman from Ramingining and Maningrida [to compete at this level], and I am going to make proud my people and

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