Cohort progression — Colegiul National Emil Racovita Bucuresti
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 freestyle100 freestyle50 butterfly200 freestyle50 backstroke50 breaststroke100 butterfly200 medley400 freestyle100 medley100 breaststroke100 backstroke200 backstroke200 butterfly200 breaststroke400 medley
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2012