Cohort progression — DOKiS VEGA Dobrodzień
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 freestyle200 medley50 freestyle100 breaststroke100 backstroke200 freestyle400 freestyle100 medley50 backstroke100 butterfly50 breaststroke50 butterfly200 backstroke200 breaststroke400 medley800 freestyle
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2001 born 2000 born 1999