Cohort progression — Zawodnik Niezrzeszony
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 50 freestyle100 freestyle50 breaststroke50 butterfly50 backstroke25 freestyle25 backstroke400 freestyle200 medley100 breaststroke200 freestyle100 backstroke100 medley100 butterfly1000 freestyle200 backstroke2000 freestyle25 breaststroke200 breaststroke1500 freestyle
Cohorts to compare: 2018 82017 92016 82015 42014 62013 92012 92011 92010 132009 42008 142007 92006 152005 32004 82003 62002 72001 102000 41999 51998 41997 31996 61995 31994 101993 81992 91991 101990 61989 51988 51987 51986 121985 81984 51983 61982 51981 101980 51979 31978 121977 71976 41975 81974 71973 71972 41971 101970 31969 51968 41966 61965 31964 51963 71960 31959 51957 61956 41955 41954 41953 71952 41948 31944 3