Karapetyan won a gold medal at the 2016 European Weightlifting Championships snatching 170 kg and clean and jerking 197 kg, setting 367 kg for total. 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). Andranik failed to place in the 2016 Summer Olympics when he dislocated his left elbow while performing the clean and jerk.