Born in 1989, Rakhmanov earned his international master title in 2006 and his grandmaster title in 2007. In March 2018, he competed in the European Individual Chess Championship. He placed 140th, scoring 5½/11 (+5–5=1). The following year, he competed again in the European Individual Chess Championship. He placed 21st with 7½/11 (+4–0=7) and qualified for the Chess World Cup 2019.