In 2021, Mammadov won one of the bronze medals in the 60 kg event at the 2021 World Wrestling Championships held in Oslo, Norway.

[2][3] Mammadov won one of the bronze medals in the 60 kg event at the 2022 European Wrestling Championships held in Budapest, Hungary.

[4][5] A few months later, he won the gold medal in his event at the Matteo Pellicone Ranking Series 2022 held in Rome, Italy.

[6] He won the silver medal in his event at the 2021 Islamic Solidarity Games held in Konya, Turkey.

[7] Mammadov won the gold medal in the 63 kg event at the 2024 European Wrestling Championships held in Bucharest, Romania.