Cohort progression — Aarhus Swim - HEI
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 butterfly100 butterfly50 freestyle100 freestyle100 breaststroke200 medley50 breaststroke100 backstroke50 backstroke200 freestyle100 medley200 breaststroke200 butterfly200 backstroke400 medley400 freestyle800 freestyle1500 freestyle
50 m butterfly men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013