Cohort progression — CSiR MOS Dąbrowa Górnicza
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 freestyle50 butterfly100 medley100 breaststroke100 backstroke50 backstroke400 freestyle200 medley50 breaststroke100 butterfly200 backstroke200 breaststroke400 medley200 butterfly800 freestyle1500 freestyle50 unknown
Cohorts to compare: 2016 62015 122014 32013 102012 62011 112010 142009 152008 332007 252006 292005 162004 232003 242002 282001 352000 411999 311998 211997 321996 111995 81994 41993 6
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013