He has won three medals at the European Championships including a silver medal in the C1 event at the 2020 European Championships in Prague and a silver and a bronze medal in the C1 team event at the 2014 and 2018 events, respectively. He has also won a myriad of medals at the U23 and Junior levels in both C1 and C2. Lukáš earned his best senior world championship result, of 26th, at the 2019 ICF Canoe Slalom World Championships in La Seu d'Urgell.