Prior to her impairment and para-cycling career, Haenen had competed in showjumping. When she was 18 years old, she was involved in a traffic accident that resulted in having her legs amputated.[2]
Haenen began her para-cycling career in 2017. She competed in the 2019 UCI Para-cycling Road World Championships, winning the bronze medal in the time trial and road race events, and also competed in these two events in the 2021 UCI Para-cycling Road World Championships, where she won the gold medal in both of them.[3] She then competed at the delayed 2020 Summer Paralympics in the time trial and road race, finishing in fourth place in both of them.[4][5] In the 2022 UCI Para-cycling Road World Championships, Haenen won the bronze medal in the road race event.[6] The following year, she won the gold medal in the time trial and the silver medal in the road race.[7][8]
In addition to para-cycling, Haenen also competes in pararowing, having competed alongside Corné de Koning in the PR2 mixed double sculls events in the 2022 and 2023 World Rowing Championships, where the two finished in fourth place in both of them.[9][10]
