 In June 2015, two months before the 2015 World Aquatics Championships in Kazan, Russia, Ottesen and her boyfriend Marco Loughran were attacked in a road rage incident in Copenhagen, during which she broke her finger.She recovered in time and won two silver medals at the world championships.At the 2016 Summer Olympics in Rio de Janeiro, she won a bronze medal as a part of the 4 × 100 m medley relay alongside Rikke Møller Pedersen, Mie Ø. Nielsen and Pernille Blume.