Cohort progression — UKS 190 Łódź
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle50 freestyle200 freestyle400 freestyle50 butterfly200 medley100 backstroke100 butterfly100 breaststroke50 backstroke400 medley200 butterfly200 backstroke50 breaststroke800 freestyle100 medley200 breaststroke1500 freestyle25 freestyle25 backstroke
Cohorts to compare: 2017 192016 282015 282014 132013 142012 242011 212010 122009 92008 102007 202006 132005 142004 132003 202002 272001 202000 291999 291998 121997 101996 5
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014