Cohort progression — KP Nemo Lipno
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 butterfly25 backstroke50 breaststroke25 freestyle100 freestyle100 backstroke100 medley25 butterfly100 breaststroke25 breaststroke100 butterfly200 freestyle200 medley
Cohorts to compare: 2018 92017 92016 92015 102014 62013 92012 32011 62010 82009 32008 82007 42006 52005 42004 52003 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2018 born 2015