In 1956, he was named the Honoured Master of Sports of the USSR and awarded the Order of the Red Banner of Labour.

Yengibaryan also won gold medals at the 1956 Olympics and 1957 and 1959 European Amateur Boxing Championships.

He went to the 1960 Summer Olympics in Rome as a favorite, but injured a shoulder in the tournament and lost in the quarterfinals to Marian Kasprzyk.

[4] Yengibaryan retired shortly after the 1960 Olympics and for more than three decades coached young boxers in Yerevan.

[5] Yengibaryan later became an international judge and in the 1970s represented Soviet Union in the AIBA Referee Commission.