She never took up rowing while at high school; it was at Lake Ruataniwha in November 2008 when she supported her younger brother at a rowing regatta that she was asked by Southland coach John O'Connor whether she wanted to try rowing herself as she had the right physical attributes. Only 14 months later, she was nominated for the New Zealand under-23 squad to compete at the 2010 World Rowing U23 Championships in Belarus, something that O'Connor termed "astonishing". Her brother, Oliver Behrent, went to the World Rowing Junior Championships in the same year. Her first club was the Waihopai Rowing Club in Southland and she later rowed for the University of Otago. Behrent took 2014 off from competitive rowing for tertiary study. She won a silver medal at the 2015 World Rowing Championships with the women's eight, qualifying the boat for the 2016 Olympics. She also competed in the coxless pair in Rio and with Rebecca Scown won silver, beaten by the Heather Stanning and Helen Glover of Great Britain. With the women's eight, she came fourth at the Rio Olympics. In November 2016, she announced that she would take 2017 off from rowing. She has started a career in the banking industry and did not return to rowing for the 2018 season either, but has not announced to Rowing New Zealand that she has retired from rowing.