Performance DevelopmentJAKA SERKO, 2014, KA100m backstroke men, 50m course (in 2024 points)   145 0 0 0 0 0   2024(10 yrs)1:38,06 2023(9 yrs)1:38,06 2022(8 yrs)1:38,06 2021(7 yrs)1:38,06 2020(6 yrs)1:38,06 2019(5 yrs)1:38,06