Wollermann made her paracanoeing debut at the 2013 South American Championships in Curauma, where she won a gold medal.[2] She has since achieved Chile's top individual results in the sport, winning the Pan American Championships five times and becoming the first Chilean to win a medal at the Paracanoe World Championships.[2][5]
At the 2016 Summer Paralympics in Rio de Janeiro, Wollermann placed fourth in the women's 200 m KL1 event, finishing just 0.02 seconds behind the bronze medallist, Ian Marsden.[2][5][6]
At the continental level, Wollermann won gold at the 2017 South American Canoeing Championships in Paipa.[7] This was followed by two gold medals at the 2017 Pan American Canoe and Paracanoe Championships in Ecuador.[8] She also claimed gold at the 2018 Pan American Paracanoe Championships in Canada.[9]
In World Cup competition, she won silver in 2018 in Hungary, and bronze at the 2019 World Cup in Poland[3] and again in Hungary in 2021.[5][10][11]
She qualified for the 2020 Summer Paralympics in Tokyo,[1][5][12][13] where she won the bronze medal in the women's 200 m KL1 event with a time of 55.921 seconds.[14][15]
In May 2024, Wollermann won gold in the KL1-200 at the Canoe World Cup in Hungary, recording a time of 52.83 seconds to finish ahead of Maryna Mazhula of Ukraine and Edina Mueller of Germany. This marked her first world-level title in the event and served as preparation for her participation in the 2024 Summer Paralympics.[16] At the 2024 Summer Paralympics in Paris, she won the gold medal in the same event, setting a time of 51.95 seconds.[17]
In August 2025, she successfully defended her world title in the KL1-200 at the 2025 Paracanoe World Championships in Milan, winning gold with a time of 53.52 seconds. She finished ahead of Maryna Mazhula and Maosan Xie of China, becoming a two-time world champion in the event.[18]