Performance DevelopmentJAKA SERKO, 2014, KA50m breaststroke men, 25m course (in 2024 points)   144 117 63 0 0 0   2024(10 yrs)0:47,58 2023(9 yrs)0:50,90 2022(8 yrs)1:02,39 2021(7 yrs)1:02,39 2020(6 yrs)1:02,39 2019(5 yrs)1:02,39