Cohort progression — KP NEPTUN Stargard
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 butterfly50 breaststroke100 breaststroke100 backstroke50 backstroke200 freestyle200 medley100 medley100 butterfly200 breaststroke200 backstroke400 freestyle200 butterfly400 medley
Cohorts to compare: 2017 32016 62015 112014 82013 132012 92011 82010 112009 122008 102007 72006 72004 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2015