Cohort progression — MUKS "Wodnik" Łask
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle50 freestyle100 backstroke50 breaststroke50 backstroke50 butterfly100 breaststroke200 freestyle100 medley100 butterfly200 backstroke200 breaststroke400 freestyle200 medley800 freestyle25 breaststroke25 freestyle200 butterfly25 backstroke1500 freestyle
Cohorts to compare: 2016 112015 112014 72013 162012 142011 142010 192009 82008 122007 142006 42005 92004 102003 62002 62001 91999 71997 41996 31995 51994 5
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013