Cohort progression — KPiRS PŁYWAK Płock
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 freestyle25 backstroke25 breaststroke100 unknown100 breaststroke100 backstroke100 medley200 unknown50 butterfly50 unknown25 butterfly
Cohorts to compare: 2017 62016 92015 72014 42013 92012 102011 82010 162009 72008 72007 42006 51998 51990 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015