At the 2018 World Artistic Gymnastics Championships, Nagornyy competed on all 6 events, helping the Russian team to qualify in first place and qualifying in second place to the All Around Final, as well as to 4 apparatus finals- floor, pommel horse, rings and vault. He was also the only gymnast to place in the top 20 on every event in qualifications. In the team final Nagornyy competed on all 6 events, helping the Russian team to the silver medal- their first World team medal since 2006 and Nagornyy's first World medal. They placed 2nd behind China by only 0.049 points. In the All Around final, Nagornyy won the bronze medal behind teammate Artur Dalaloyan, who became the 2018 World Champion, and 2017 Champion Xiao Ruoteng. This was the first time two Russian gymnasts had been on a World All Around podium together, and the first time any Russian man had won a World All Around medal since 2009. In the event finals, Nagornyy placed 6th on floor and pommel horse, and 5th on rings and vault.