One of the leading athletes of the Armenian national team, three-time European Champion. Born in Gyumri, he is coached by his father Alexan Karapetyan, who was also a weightlifter.
In 2023, at age 19, Karapetyan won his first European title in the 102 kg class. In 2025 in Chișinău he repeated the feat in the 109 kg class, and in 2026 in Batumi at age 22 he became a three-time European Champion in the 110 kg class.
At the Paris 2024 Olympics he finished 4th, just one place short of an Olympic medal. He is also a three-time Junior World Champion.