Performance DevelopmentJON KRDŽALIĆ, 2014, RL50m backstroke men, 50m course (in 2024 points)   0 91 66 0 0 0   2024(10 yrs) 2023(9 yrs)0:52,57 2022(8 yrs)0:58,61 2021(7 yrs)0:58,61 2020(6 yrs)0:58,61 2019(5 yrs)0:58,61