Cohort progression — KS KSZO Ostrowiec Świętokrzyski
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 400 freestyle200 freestyle100 freestyle50 freestyle50 butterfly800 freestyle100 butterfly400 medley200 medley50 backstroke200 butterfly100 medley100 breaststroke50 breaststroke100 backstroke200 breaststroke1500 freestyle200 backstroke
Cohorts to compare: 2012 52011 42005 62003 82002 192001 92000 101999 31998 61997 81996 71995 51994 5