In March 2018, Sahaliuk won a gold medal at the Ukrainian Cadets Wrestling Championships in Bakhmut in 80 kg event.[4] In May, he won a first medal at the continental championships, receiving a bronze one at the European Cadets Championships in Skopje.[5] In October, he received a gold medal at the Wrestling Cadets Cup of Poland in 80 kg event.[6]
In 2019, Denys competed at the 2019 World Cadets Wrestling Championships, held in Sofia, Bulgaria, where he won a bronze medal in 80 kg event.[7] Also he received a silver medal at the 2019 European Cadets Wrestling Championships in 80 kg.[8]
In the following years, Denys represented Ukraine at the 2021 European U23 Wrestling Championships in Skopje, winning a bronze medal in 86 kg event.[9] He also competed at the 2021 U23 World Wrestling Championships, where he lost to Belarussian wrestler Arkadzi Pahasian in the round of 16.[10]
In 2022, he competed at the European Juniors Championships, held in Rome, receiving a bronze medal in 92 kg event.[11] In August, Sahaliuk represented Ukraine at the U20 World Championships in Sofia, finishing 14th after losing to Greek wrestler Gkivi Bliatze in the round of 16.[12] In October, Denys competed at the U23 World Championships in Pontevedra, where he lost the Georgian wrestler Miriani Maisuradze in the bronze medal match.[13]
In 2023, Denys competed at the Dan Kolov & Nikola Petrov Tournament in Sofia, without receiving any medal after losing to Azerbaijani wrestler Ibrahim Yusubov in the round of 16.[14] In July, Sahaliuk finished in the last place of the group stage at the Polyák Imre & Varga János Memorial Tournament in Budapest.[15] In September, Denys represented his country at the World Championships, but he didn't receive any medal.[16] In October, Sahaliuk competed at the U23 World Championships in Tirana, losing to Ion Demian in the round of 32.[17]
In February 2024, he lost his bronze medal match in the men's 92 kg event at the 2024 European Wrestling Championships held in Bucharest, Romania.[18] In May, Denys represented his country at the European U23 Championships in Baku, where he lost to Greek wrestler Gkivi Bliatze in the quarterfinals.[19] In October, Sahaliuk competed at the U23 World Championships in Tirana, losing to Nicolaas De Lange from South Africa in the round of 16.[20]
In March 2025, he competed at the European U23 Championships in Tirana, winning a bronze medal in the 92 kg event.[21]
Ukraine
