[9][10] During the same competition Mirosław reached the finals of the combined event qualifying her for the 2020 Olympics.

[13] Previously she finished in second place at Chamonix in July 2016, and third at Wujiang in October 2016.

[13] On 4 August 2021, during the Tokyo 2020 Olympics she established the initial women's Olympic Record in competition speed climbing with 6.97 s.[14] She improved her time in the finals on 6 August, setting a new women's world record with 6.84 s.[15] She finished in 4th place in the overall standings and did not win a medal.

[2] She defeated Spain's Leslie Romero Pérez, Poland's Aleksandra Kałucka and China's Deng Lijuan in the knock out stage on her way to Olympic gold medal.

As a recognition of her achievements, a mural depicting Mirosław beating the world record was created by artist Michał Ćwiek in her hometown of Lublin.