Zelingrová joined the Czech national women's curling team as the alternate in 2013.

Her first international event was when the team played in the 2014 World Women's Curling Championship where the Czech Republic went 3–8.

In 2016 they played in the 2016 Europeans and finished in fourth place, which also qualified them for the 2017 World Women's Curling Championship.

At the 2018 World Women's Curling Championship, the Czech team qualified for the playoffs for the first time with a 6–6 record.

The 2020 World Women's Curling Championship was cancelled due to the COVID-19 pandemic, but the team represented Czech Republic at the 2021 World Women's Curling Championship which was played in a bio-secure "bubble" to prevent spread of the virus.