2011–19 Kochman won a bronze medal at the
2011 European Cadet Championships (U-17). He also won a bronze medal at the
2014 European U23 Championships. Kochman won bronze at the
2015 Budapest Grand Prix (90 kg) and a silver medal at the
2016 Zagreb Grand Prix. In 2017 Kochman won the gold medal at the European Open in Belgrade. That year he lost in the finals of the European Open in Minsk and the European Open in Bucharest. In 2018 Kochman won a silver medal at the European Open in Sofia. That year he also won a bronze medal at the
2018 Tbilisi Grand Prix. Kochman won a silver medal at the
2019 European Games in Minsk. Bekauri went on to win the gold medal. ==Titles==