Krumov began his career at Lokomotiv Sofia where he made 17 A PFG appearances in four seasons.

[1] Whilst at Lokomotiv Stadium he spent time out on loan at Zagorets, Rilski Sportist and Armenian club Banants Yerevan before joining Minyor Pernik on a permanent basis in the early of 2009.

[3] He made his league debut against Botev Vratsa on 2 March, playing the full 90 minutes.

On 22 February, he made his official debut, scoring a goal against Slavia Sofia from a free kick to help his team secure a 2:2 draw.

[5] On 26 August 2024 Krumov was announced as the new manager of Rilski Sportist, meaning he also retired from playing.