Cohort progression — Ks Rekin Świebodzice
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 butterfly50 breaststroke100 backstroke100 breaststroke100 medley200 freestyle200 medley100 butterfly200 backstroke400 freestyle200 breaststroke25 freestyle800 freestyle400 medley25 backstroke200 butterfly25 breaststroke
Cohorts to compare: 2017 102016 152015 132014 232013 192012 202011 222010 172009 212008 182007 192006 142005 152004 132003 172002 222001 162000 161999 211998 131997 121996 51995 81994 31993 31988 41986 31985 51984 51982 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014