Since 2019, her partner was Anhelina Khmil.[2] They debuted competing in international competitions at the 2019 U20 Beach Volleyball European Championships, where they didn't reach quarterfinals.[3]
Later, they represented Ukraine at the 2020 European Beach Volleyball U18 Championships, held in İzmir, where they won gold medals.[4]
In 2021, they debuted competing at the 2021 FIVB Beach Volleyball U21 World Championships, held in Phuket reaching a gold medal.[5] Khmil/Lazarenko represented Ukraine at the 2021 FIVB Beach Volleyball U19 World Championships, where they won a bronze medal,[6] and also at the 2021 European U22 Beach Volleyball Championships, held in Baden, receiving bronze medals too.[7]
Lazarenko and Khmil competed at the FIVB Beach Volleyball World Tour in 2021, where they won a gold medal in Sofia Beach Open 2 and three bronze medals.[8][9]
In 2022, Khmil/Lazarenko competed at the Volleyball World Beach Pro Tour, winning a gold medal in Warsaw and a silver medal in Białystok.[10][11] In that year, they received gold medals at the 2022 European U20 Beach Volleyball Championships and bronze medals at the 2022 European U22 Beach Volleyball Championships.[12][13]
Because of Khmil's studying at the Texas Christian University in the United States, Tetiana had to changed her partner.[14] Yevhenia Baieva became her partner and they competed at the 2022 European Beach Volleyball Championships without winning a Pool F.[15]
In January 2023, Lazarenko moved to the sport club "Prometheus" in Kamianske, and Diana Lunina became her new partner.[16]
Lazarenko compete with Lunina and later Maryna Hladun at the 2023 Volleyball World Beach Pro Tour, winning two gold and one silver medals.[17][18][19]
Lazarenko and Hladun reached the round of 16 at the 2024 European Beach Volleyball Championships.[20]
A year later, the pair won gold at the 2025 European Beach Volleyball Championships.
