She won one of the bronze medals in the women's +68 kg event at the 2021 World Karate Championships held in Dubai, United Arab Emirates.

[2] Lesjak won one of the bronze medals in the women's team kumite event at the 2021 European Karate Championships held in Poreč, Croatia.

[5] Lesjak won the gold medal in the women's team kumite event at the 2022 European Karate Championships held in Gaziantep, Turkey.

[7] She competed in the women's +68 kg event at the 2022 Mediterranean Games held in Oran, Algeria where she was eliminated in her first match.

[8] Lesjak won the silver medal in the women's team kumite event at the 2023 European Karate Championships held in Guadalajara, Spain.