Nikolova represented Bulgaria at the 2015 European Games held in Baku, Azerbaijan and she won one of the bronze medals in the 55 kg event.

[3][4] In that same year, she also won a bronze medal in the 55 kg event at the 2015 World Wrestling Championships held in Las Vegas, United States.

[1] In October 2021, Nikolova was eliminated in her second match in the women's 57 kg event at the World Wrestling Championships in Oslo, Norway.

[12] In February 2022, Nikolova won the gold medal in the 57 kg event at the Dan Kolov & Nikola Petrov Tournament held in Veliko Tarnovo, Bulgaria.

[18] Nikolova won the bronze medal in her event at the 2023 Dan Kolov & Nikola Petrov Tournament held in Sofia, Bulgaria.