Cohort progression — St. Lok. SALOS Cortile Kielce
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 backstroke200 freestyle50 butterfly200 medley400 freestyle100 backstroke50 breaststroke100 medley100 breaststroke200 backstroke100 butterfly200 breaststroke400 medley800 freestyle1500 freestyle25 backstroke25 freestyle
Cohorts to compare: 2019 42018 42017 132016 122015 232014 42013 82012 122011 42010 52009 52008 72002 41999 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016