Cohort progression — UKS SP-149 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 breaststroke100 freestyle50 freestyle100 backstroke50 breaststroke50 butterfly50 backstroke200 medley100 butterfly100 medley400 freestyle200 backstroke200 freestyle200 breaststroke400 medley200 butterfly25 freestyle25 backstroke800 freestyle25 butterfly
Cohorts to compare: 2017 362016 352015 492014 232013 292012 482011 292010 242009 212008 232007 262006 272005 162004 272003 252002 112001 202000 151999 171998 61997 5
100 m breaststroke men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014