Polii's achievements began when she was paired with Jo Novita, winning a Grand Prix title, two silver medals at the Southeast Asian Games in 2005 and 2007, and a bronze in the 2005 Asian Championships. Together with Maheswari, she collected 2 Superseries titles, 3 Grand Prix titles, a gold at the 2014 Asian Games, a silver at the 2013 Southeast Asian Games, and bronze medals at the 2015 World and 2016 Asian Championships. She made a new partnership with the youngster Apriyani Rahayu in 2017. Together with Rahayu, she won her first women's doubles gold at the Southeast Asian Games in 2019, her first title on home soil at the 2020 Indonesia Masters, and Indonesia's first ever women's doubles gold at the 2020 Summer Olympics.