Cohort progression — Svømmeklubben Kvik, Kastrup
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 butterfly100 backstroke50 backstroke100 medley50 breaststroke100 breaststroke200 medley100 butterfly200 freestyle200 backstroke200 breaststroke400 freestyle25 butterfly400 medley200 butterfly50 unknown25 backstroke25 breaststroke
Cohorts to compare: 2017 42016 282015 382014 202013 202012 202011 222010 232009 112008 112007 132006 42005 42004 42001 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014