He won a bronze medal for Czechoslovakia in the K1 team event at the 1991 ICF Canoe Slalom World Championships in Tacen.

[3] Nagy competed in two Summer Olympics for Slovakia.

He finished 13th in his Olympic debut in the K1 event at the 1996 games in Atlanta.

He finished 12th in the K1 event fours years later in Sydney.

Nicknamed "Faťko", Nagy died in Bratislava in 2021, at age 56.