Cohort progression — KP Sukces Chorzów
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 backstroke50 butterfly100 medley100 breaststroke100 backstroke200 freestyle100 butterfly400 freestyle200 medley200 butterfly200 breaststroke25 freestyle25 backstroke800 freestyle400 medley25 breaststroke200 backstroke
Cohorts to compare: 2016 42015 32014 232013 42012 222011 92010 262009 152008 102007 172006 132005 142004 192003 192002 152001 42000 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014