Cohort progression — Gentofte Svømme Klub
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 freestyle50 backstroke50 butterfly50 breaststroke100 freestyle100 backstroke200 medley100 breaststroke200 freestyle100 butterfly100 medley200 backstroke200 breaststroke400 freestyle400 medley200 butterfly25 freestyle800 freestyle25 backstroke25 butterfly
Cohorts to compare: 2018 32017 162016 442015 492014 772013 692012 692011 362010 412009 322008 162007 192006 112005 132004 52003 31972 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015