Cohort progression — Hämeenlinnan Uimaseura
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 butterfly100 breaststroke100 backstroke50 backstroke200 medley200 freestyle100 butterfly100 medley400 freestyle200 backstroke200 breaststroke800 freestyle400 medley200 butterfly25 freestyle1500 freestyle
Cohorts to compare: 2016 112015 82014 132013 82012 82011 72010 152009 152008 82006 32005 31992 31986 31984 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013