Brussig won gold in the under 57 kg weight class at the 2004 Games in Athens, her first Paralympic Games, against Spanish judoka Marta Arce Payno. She then won silver four years later in Beijing, losing to Wang Lijing in the final. Brussig and Wang both dropped down a weight class to under 52 kg for the 2012 Summer Paralympics in London, meeting each other again in the final. This time Brussig was triumphant, going home with the gold. Brussig defended her title at the Rio 2016 and finished as runner-up to French judoka Sandrine Martinet, earning her a silver medal.