In the same year, at the World Youth Championships in Cali, with a total of 302 kg, Arakel won the silver medal.

After that, Mirzoyan participated at International Student Games in 2008, winning the silver medal by lifting 312 kg in total.

[3] In the same year, he went to the 2009 World Weightlifting Championships in Goyang, where he lifted a total weight of 334 kg and won the silver medal, behind the reigning Olympic Champion Liao Hui.

Weeks later, Armenian Weightlifting Federation President Samvel Khachatryan revealed Mirzoyan had been suffering from psychological problems, preventing him from competing to the fullest of his ability.

[7] Mirzoyan himself later apologized to his fans for his defeat and promised to learn from his problems and give a better performance at the 2016 Rio Olympics.