Cohort progression — KU AZS AGH 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: 100 freestyle50 freestyle100 butterfly100 breaststroke50 butterfly200 freestyle200 medley50 breaststroke100 medley50 backstroke100 backstroke200 breaststroke200 backstroke400 freestyle400 medley200 butterfly
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2000 born 1999