[5] Lytvynenko's first achievement in international competitions was a silver medal at the 2019 Győr Cadet European Cup in Hungary in the ‍–‍70 kg division.

[7] She also won a bronze medal at the World Military Judo Championship, held in Paris, in the ‍–‍78 kg division.

[8][9] In the same year, she debuted competing at the 2021 European Judo Championships[10] and was eliminated in the first round.

[12] She also won a gold medal at the 2022 European Youth Summer Olympic Festival in the ‍–‍78 kg division and a silver in mixed team competition.

[16][17] Lytvynenko also received a bronze medal at the 2023 Judo World Masters in Budapest, where she qualified to the 2024 Summer Olympics.