Sladkov began rhythmic gymnastics because her mother is a coach.[3] She competed as a junior at the 2014 Pacific Rim Championships and won a silver medal in the group all-around and in 5 clubs and a bronze medal in 5 hoops.[4]
Sladkov competed with the senior U.S. group at the 2017 World Championships and finished twelfth in the group all-around.[5] At the 2017 Pan American Championships in Daytona Beach, Florida, she won the gold medal in the 5 hoops and silver medals in the group all-around and 3 balls + 2 ropes, both behind Brazil.[6]
Sladkov competed at the 2018 World Championships in Sofia where the American group finished fourteenth in the all-around.[7] Then at the 2018 Pan American Championships in Lima, she won the silver medal in both the group all-around and the 3 balls + 2 ropes event final, both behind Mexico.[8]
Sladkov competed at the 2019 Pan American Games in Lima and won the silver medal in the group all-around and in the 5 balls event final, both times finishing behind Mexico.[9] Then at the 2019 World Championships in Baku, the American group finished tenth in the group all-around.[10]
Sladkov was selected to represent the United States at the 2020 Summer Olympics alongside Isabelle Connor, Camilla Feeley, Lili Mizuno, and Elizaveta Pletneva.[11] They finished eleventh in the qualification round for the group all-around.[12]
United States 
United States 
_pictogram.svg)
