Cohort progression — A6 Slangerup 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: 50 freestyle100 freestyle50 breaststroke50 backstroke50 butterfly100 breaststroke100 backstroke100 medley200 freestyle200 medley100 butterfly200 breaststroke400 medley400 freestyle200 backstroke200 butterfly1500 freestyle800 freestyle
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014 born 2013