[2] At international level, Denchev was Bulgaria's second-choice goalkeeper, behind Ivan Karadzhov at the 2008 UEFA European Under-19 Football Championship.
In June 2008, Denchev signed a three-year contract with newly promoted A PFG side Sliven 2000.
[3] He made his debut, coming on as a substitute for Marco Tiago after Pirgov's sending-off against Montana on 23 October, but was powerless to stop the rivals from scoring two times in a 4–0 loss at the Ogosta Stadium.
[5] In the summer of 2014 he signed a contract with Navbahor Namangan and moved as a free agent to Uzbek League club to play the second half of the season.
On 28 December 2016, Denchev joined Lokomotiv Gorna Oryahovitsa[6] but left the club at the end of the season following their relegation to the Second League.