Cohort progression — HAPK Mladost
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 medley50 freestyle50 breaststroke50 butterfly100 freestyle100 backstroke200 freestyle50 backstroke100 butterfly100 breaststroke400 freestyle200 backstroke200 medley200 butterfly200 breaststroke
100 m medley men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013 born 2012