|Full name||Rosen Rosenov Kolev|
|Date of birth||4 July 1990|
|Place of birth||Sofia, Bulgaria|
|Height||1.87 m (6 ft 1 1⁄2 in)|
|2010||→ Bdin Vidin (loan)||10||(1)|
|2015–2016||Volga Nizhny Novgorod||20||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 27 March 2017.
Kolev's professional career started in 2008 but during that season he didn't make an appearance for the first team and in January 2010 was sent on loan to B PFG side Bdin Vidin. Rosen made his debut for Bdin on 27 February 2010 in a 1–2 away loss against Balkan Botevgrad.
In June 2010 his contract with CSKA was mutually terminated and Kolev joined Kom-Minyor. He made his Kom-Minyor début on 31 July 2010 in the away game versus Chavdar Byala Slatina. Kolev got his first goal on 11 September, in a 2–2 home draw against Septemvri Simitli. On 2 October he scored his 2nd League goal of the season against Vihren Sandanski in a 1–0 win. He continued his scoring in the season by scoring Kom-Minyor's second goal in a 2–0 win against Botev Krivodol of the Bulgarian Cup on 20 November.
Kolev joined Botev Plovdiv on 11 July 2014. Nine days later, on 20 July, he made his debut during the 1-0 win over Lokomotiv Sofia. Kolev did not play in any official games in 2015 and on 25 May his contract with Botev was mutually terminated. Kolev left the team after playing in 11 games.
As of 1 March 2016[update]