In 2010, Beleniuk won the silver medal at the Junior World Championships. In 2011, he became the Junior European Champion amongst, and won bronze at the World Championship. In 2012, he won the bronze medal at the
European Championships. In 2013, he won bronze again at the Summer Universiade. In 2014, he won a gold medal at the
2014 European Wrestling Championships, and bronze at the World Championships. In 2015, he won the silver medal at the
first European Games in
Azerbaijan. On 10 September 2015, after winning against the then-reigning World Champion and then-Champion of Asia, Uzbek
Rustam Assakalov scoring 6:0, Beleniuk won gold at the
2015 World Wrestling Championships in the under-85 kg weight category. In 2016, he won gold at the
2016 European Wrestling Championships, followed by the silver medal at the
2016 Summer Olympics in
Rio de Janeiro. In 2021, he won the gold medal in the
men's Greco-Roman 87 kg event at the
2020 Summer Olympics in
Tokyo. Beleniuk was briefly a member of the
National Olympic Committee of Ukraine. He left the National Olympic Committee in January 2023 due to disagreement with its new president
Vadym Gutzeit. In 2024, Beleniuk won a bronze medal in the
men's Greco-Roman 87 kg at the
2024 Summer Olympics in
Paris and subsequently retired from competing.
Politics Beleniuk was elected a deputy to the
Verkhovna Rada in July
2019 Ukrainian parliamentary election as a member of the
Servant of the People political party. He was one of the first ten candidates on the party's electoral list. ==Achievements==