He was selected to compete for Armenia at the 2024 Summer Olympics in Weightlifting, the men's -89 kg.

He competed in 2015 World Weightlifting Championships and came 4th in total, but following disqualification of North Korean weightlifter Kim Kwang-song Karapetyan received the bronze medal in total (363 kg).

[1] Karapetyan failed to place in the 2016 Summer Olympics when he dislocated his left elbow while performing the clean and jerk.

[2] In August 2024, Karapetyan competed in the men's 89 kg event at the 2024 Summer Olympics held in Paris, France.

This biographical article relating to weightlifting in Armenia is a stub.