Cohort progression — Hovedstadens Svømmeklub
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 butterfly50 breaststroke50 backstroke200 freestyle100 medley100 breaststroke200 medley100 butterfly200 backstroke200 breaststroke400 freestyle400 medley200 butterfly25 butterfly800 freestyle25 breaststroke1500 freestyle
Cohorts to compare: 2017 62016 462015 382014 432013 392012 422011 402010 252009 262008 192007 122006 152005 82004 102003 72002 42001 41998 31997 5
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014