Cohort progression — TP Olimpijczyk Aleksandrów Łódzki
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 freestyle50 breaststroke100 breaststroke200 freestyle100 backstroke50 backstroke50 butterfly100 butterfly200 medley400 freestyle100 medley200 breaststroke200 backstroke200 butterfly400 medley800 freestyle25 freestyle25 backstroke25 butterfly
Cohorts to compare: 2017 42016 52015 92014 112013 92012 132011 102010 122009 32008 132007 82006 102005 82004 112003 92002 52001 42000 141999 161998 31997 31996 13
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014