As one of her first senior level competitions, she competed in the women's 69 kg event at the 2015 World Wrestling Championships held in Las Vegas, United States.

[5] A month later, Manolova tried again at the World Olympic Qualification Tournament held in Istanbul, Turkey but she could no longer qualify after losing her first match against Monika Michalik of Poland.

[7] In 2017, Manolova won one of the bronze medals in the women's 69 kg event at the Golden Grand Prix Ivan Yarygin held in Krasnoyarsk, Russia.

A few months later, in May 2017, she lost her bronze medal match in the women's 69 kg event at the European Wrestling Championships held in Novi Sad, Serbia.

[13][14] In March 2021, Manolova competed at the European Qualification Tournament in Budapest, Hungary hoping to qualify for the 2020 Summer Olympics in Tokyo, Japan.

[17][18] Manolova competed in the women's 68 kg event at the 2020 Summer Olympics where she lost her first match against eventual silver medalist Blessing Oborududu of Nigeria.

[3] Two months after the Olympics, Manolova competed in the women's 65 kg event at the 2021 World Wrestling Championships held in Oslo, Norway where she was eliminated in her first match by Koumba Larroque of France.

[19] In 2022, Manolova won one of the bronze medals in the 65 kg event at the Dan Kolov & Nikola Petrov Tournament held in Veliko Tarnovo, Bulgaria.