Cohort progression — UKS Piątka Konstantynów Łódzki
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 backstroke50 breaststroke100 breaststroke100 backstroke50 butterfly200 freestyle400 freestyle200 medley100 medley100 butterfly200 breaststroke200 backstroke400 medley25 freestyle800 freestyle25 backstroke200 butterfly25 breaststroke
Cohorts to compare: 2018 212017 252016 342015 332014 312013 222012 322011 322010 322009 102008 162007 262006 132005 122004 142003 222002 112001 52000 141999 41998 61997 81996 61995 31980 61979 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015