[1] Kolev was the coach of the Bulgarian women's national chess team 2004–2006.

[2] Kolev and fellow Bulgarian grandmaster Kiril Georgiev are co-authors of the best-seller The Sharpest Sicilian, a book about the Najdorf Variation of the Sicilian Defense, which was published in 2007.

Five years after the first edition, the book was completely rewritten and redesigned and "The Sharpest Sicilian 2012" was published in October 2012.

[3] He won the 33rd Plovdiv Open 2011, shared first place with GM Cheparinov at Albena Open 2011, won the 20th annual Midway Championship in Chicago 2011, and the First Annual International Chess Festival in Detroit 2011.

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