Cohort progression — Herning 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 freestyle50 butterfly50 breaststroke100 freestyle100 breaststroke50 backstroke100 medley100 backstroke200 freestyle200 breaststroke200 medley100 butterfly200 backstroke400 freestyle200 butterfly400 medley25 freestyle25 breaststroke800 freestyle25 backstroke
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013