Cohort progression — UKS FOKA Choszczno
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 backstroke50 butterfly100 freestyle100 medley100 breaststroke100 backstroke200 medley200 freestyle25 freestyle100 butterfly25 backstroke400 freestyle25 unknown200 backstroke200 breaststroke25 breaststroke800 freestyle25 butterfly
Cohorts to compare: 2019 42018 82017 252016 142015 262014 142013 202012 142011 112010 42009 122008 252007 92006 122005 122004 42003 32002 82001 72000 8
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016