Belozerov gained recognition in the chess world following his victory at the Moscow championship in 1992, which he won ahead of several other established Grandmasters. He proceeded to add substantial accomplishments to his collection, including a win at the Russian Cup in 1994; a shared first place position (alongside Valery Salov) at the Chigorin Memorial tournament in 1996; and a victory at the St Petersburg championship in 2003.
From 1997 to 2003, he played several times in the Chess World Cup, though he was unable to secure a win. Additionally, he has represented Russia in the European Club Cup on two occasions.
Aside from his playing career, Belozerov has also acted as a trainer for several promising chess players. Notably, he coached former Women's World Junior Champion, Dronavalli Harika, and the youngest International Master in history, Praggnanandhaa Rameshbabu, in 2016. He continues to support the development of young chess talent in his role as a coach.