Lazarov started his career at Botev Plovdiv at age of 6, where he was a goalkeeper at the beganing, before being moved as a field player, and left the academy after 8 years for Spartak Plovdiv.[2] He made his debut for the team at the age of 15 in a league match against Borislav Parvomay and also scored his debut goal.[3] He become a leading goalscorer of the team and also a captain at the age of 17.[4]
On 8 June 2024 he announced he is leaving the club, later revealing he moved to Fratria Varna.[5][6] Lazarov scored his debut goal for the team on 11 November 2024 in a league match against Lokomotiv Gorna Oryahovitsa.[7]