[citation needed] While a schoolboy, he performed as a backup dancer for Russia's entrant Alexandra Golovchenko in the Junior Eurovision Song Contest 2007.

He won individual medals, taking gold in the rings and vault, silver in the horizontal bar, and bronze in the all-around event.

[citation needed] He appeared in his first major international competition at the 2014 European Junior Championships where the Russian Team won the silver medal, he also qualified in 2 individual apparatus in vault and rings.

[5] He then competed in his first major senior event at the 2017 European Championships where he won the all-around silver medal behind Ukraine's Oleg Verniaiev.

On August 23–27, Dalaloyan competed at the Russian Cup in Ekaterinburg, he won gold in team, in the all-around after bombing in pommel horse; he slipped into 4th place behind Nikita Ignatyev.

In the apparatus finals, Dalaloyan won gold in vault (tied with Nikita Nagornyy) and 2 silver medals on Parallel Bars and Floor Exercise.

He earned 87.598 total points, as did Xiao Ruoteng, though after tie-breaking rules were enforced (which drop the lowest exercise score), Dalaloyan was named All-Around Champion.

[citation needed] At the 2019 European Artistic Gymnastics Championships in Szczecin, Poland, Dalaloyan placed second all-around, first on floor exercise, and third on vault and high bar.