Cohort progression — Korona 1919 Kraków
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 breaststroke50 butterfly100 medley100 breaststroke50 backstroke100 butterfly100 freestyle200 breaststroke100 backstroke200 freestyle200 medley200 butterfly
Cohorts to compare: 1994 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 1994