Cohort progression — Weteran Zabrze
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 backstroke50 breaststroke50 butterfly100 freestyle100 breaststroke100 backstroke200 breaststroke200 freestyle200 backstroke100 medley400 freestyle100 butterfly800 freestyle200 medley200 butterfly400 medley1500 freestyle
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 1983 born 1959