Cohort progression — KS Aquarius Słupsk
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 freestyle50 freestyle100 breaststroke100 backstroke50 breaststroke50 backstroke50 butterfly200 breaststroke200 medley100 butterfly200 backstroke400 freestyle100 medley200 freestyle800 freestyle
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2005 born 2004