Active in strongman from 2017 to 2023, Janusz Kułaga competed at the highest international level. He finished 10th at World’s Strongest Man 2020 and 13th in 2022. Kułaga deadlifted 425kg at the 2021 Arnold Europe and won Poland’s Strongest Man in 2019. He is known for his speed in the atlas stones, completing a 5-stone run (120–180kg) in 21.4 seconds at the 2022 Strongman Champions League.