 He made his senior debut on 31 August 2012, at the age of 18, coming on as a substitute for Stanko Yovchev in a 4–1 victory over Minyor Pernik.On 15 December, Dolapchiev came off the bench to score his first senior goal for the club in a 5–0 Bulgarian Cup win against Chavdar Etropole.In mid July 2013, following a change in the club's ownership, he signed his first professional contract with CSKA Sofia.