2019 In 2019 Zimmermann turned senior. She made her debut at the DTB Team Challenge where she placed eighth in the all-around and helped Germany finish fifth as a team. The following month she competed at the
European Championships where she placed twenty-fourth in the all-around. In June Zimmermann competed at the Flanders International Team Challenge in
Ghent, Belgium alongside
Kim Ruoff,
Lisa Schöniger, and
Isabelle Stingl. Together they placed seventh in the team final. Individually Zimmermann placed twentieth in the all-around. In August Zimmermann competed at her first German National Championships as a senior elite where she placed eleventh in the all-around and third on vault behind
Sarah Voss and
Emelie Petz. As a result, Zimmermann qualified to compete at the World Trials for a chance to make the German team that would compete at the
2019 World Championships. At the World Trials she finished seventh in the all-around but recorded the second highest balance beam score. In September Zimmermann competed at a friendly competition in
Worms, Germany where she helped Germany finish first as a team and individually she finished eighteenth in the all-around. Zimmermann ended the season competing at the
Cottbus World Cup where she qualified to the vault and balance beam event finals. During event finals she placed seventh and sixth respectively.
2020 While most competitions were canceled or postponed due to the
COVID-19 pandemic, the
Szombathely Challenge Cup was held in October which Zimmermann competed at. She qualified to the vault, uneven bars, and floor exercise finals. She finished fifth in the vault event final but won bronze on both uneven bars and floor exercise.
2022 Zimmermann announced her retirement from the sport on December 1, 2022 via Instagram. == Competitive history ==