At the 2019 World Artistic Gymnastics Championships in Stuttgart, Germany, Nagornyy helped Russia to win gold in the team event, almost one-full point ahead of 2018 champion China, and Japan. Nagornyy qualified first for the all-around event, and successfully retained that position in the final with a total score of 88.772, ahead of compatriot and also reigning champion, Artur Dalaloyan, and Olympic gold medalist Oleg Verniaiev. He also qualified for floor exercise and vault apparatus finals, and was a reserve for horizontal bar and parallel bar. He won another gold medal in the vault event, narrowly beating Dalaloyan who won silver.