Cohort progression — KS AZS-AWFiS Gdańsk
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 freestyle100 breaststroke50 breaststroke200 freestyle50 butterfly50 backstroke100 backstroke200 breaststroke100 medley100 butterfly200 medley200 backstroke400 freestyle200 butterfly400 medley800 freestyle
Cohorts to compare: 2012 32010 32009 42008 32005 82004 32003 52001 92000 171999 151998 181997 121996 101995 81994 41993 111992 71991 41987 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2010 born 2009 born 2008