Cohort progression — UKS NKP Bielsko-Biała
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 breaststroke100 medley50 butterfly50 backstroke100 backstroke100 breaststroke200 medley200 freestyle200 backstroke25 freestyle25 backstroke100 butterfly400 freestyle200 breaststroke25 breaststroke
Cohorts to compare: 2018 32017 52016 62015 112014 292013 72012 42011 132010 132008 32005 42004 52001 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015