Cohort progression — UKS Delfinek Kutno
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 backstroke25 freestyle100 medley25 backstroke100 freestyle50 butterfly25 breaststroke100 breaststroke25 butterfly100 backstroke100 butterfly
Cohorts to compare: 2018 42017 72016 92015 142014 142013 142012 122011 42010 102009 32008 92007 62006 62005 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015