Cohort progression — UKS ,,SPORTOWIEC'' Oborniki
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 backstroke50 breaststroke100 freestyle50 butterfly25 freestyle100 breaststroke25 backstroke100 medley100 backstroke200 medley200 freestyle100 butterfly400 freestyle200 breaststroke25 breaststroke
Cohorts to compare: 2018 102017 132016 122015 122014 122013 202012 112011 62010 82009 72008 92007 122006 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015