Active in strongman from 2017 to 2023, Zdeněk Sedmík competed in multiple international events. He finished 10th at World’s Strongest Man 2020 and 13th in 2022. Sedmík deadlifted 425kg at the 2021 Arnold Europe and set a Czech log lift record with 192kg at the 2019 Czech Strongest Man. He won the 2020 Central Europe Strongest Man and is known for his consistent top finishes in the atlas stones event.