Club career
Maria Fisker started playing handball at Vissing-Hadsten HK. In 2005 she signed for Randers HK, but only stayed there for a year before signing for the Danish top club Viborg HK. She debuted for the Viborg team in 2007, 25 days before she turned 17. This made her the third youngest player in the Danish Handball League at the time.
At the 2013 World Championship, she was a part of the Danish team that won bronze medals, breaking a 9-year streak without medals for the Danish team. They beat Poland 30–26.
In 2015 she suffered a concussion that put her on the sidelines for the entire spring season. She had just signed for Romanian club CSM București, where she only played for a season.
She returned to Danish handball to join her former club Randers HK in 2016, where she played for 3 years, before re-joining Viborg HK. In 2019 Viborg HK signed her to replace Ann Grete Nørgaard, who had signed for SCM Ramnicu Valcea.
In 2026 she signed for the Faroese side Eiðis Bóltfelag, where she will also take on the role as assistant coach.
National team
Fisker made her debut for the Danish national team on 24 September 2010. Her first major international tournament was the 2011 World Championship, where Denmark finished 4th.
Due to am elbow injury she missed to 2012 European Championship.
At the 2013 World Championship, she was a part of the Danish team that won bronze medals, breaking a 9-year streak without medals for the Danish team. They beat Poland 30–26. At this occasion she was chosen as part of the tournament all star team.
At the 2014 European Championship she was once again part of the all star team, despite Denmark finishing 8th.
