Cohort progression — CLUBUL SPORTIV MUNICIPAL BRĂILA
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 freestyle50 butterfly50 breaststroke100 breaststroke100 freestyle200 breaststroke200 freestyle200 medley50 backstroke100 butterfly
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2009