Baraniewski initially competed in
judo. He started training at Nastula Club, before later switching to Aligatores Fight Club, which to this day is his gym. He competed in multiple
International Judo Federation (IJF) tournaments, but did not place in the top 3. Baraniewski's first podium place came at the
2018 World Judo Juniors Championships where he won the bronze medal after defeating Mathias Madsen. His next two medals were in
submission wrestling, where he obtained a bronze and gold medal at the ADCC Polish Nationals in 2019 and 2020 respectively. Also in 2020, Baraniewski won the gold medal at the Polish Youth Judo Championships in
Józefów after beating Eryk Ryciak in the final. Transitioning to
mixed martial arts, Baraniewski competed in the
GAMMA European Championships in
Kyiv in 2021, where he won the silver medal after losing to Stanislav Khmilkovsky in the finals. In 2022, Baraniewski competed in both the GAMMA European Championships and World Championships, where he won a gold medal in both after beating Arturs Skabarnieks and Giorgi Chochishvili respectively. In 2024, Baraniewski won another GAMMA European Championships gold medal after beating Cristian Constantinov in the finals. == Mixed martial arts career ==