Cohort progression — MKS Juvenia Wrocław
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 freestyle50 butterfly200 freestyle100 breaststroke100 backstroke200 medley50 backstroke50 breaststroke100 butterfly100 medley400 freestyle200 backstroke200 breaststroke200 butterfly800 freestyle400 medley1500 freestyle25 freestyle50 unknown
Cohorts to compare: 2015 402014 562013 512012 532011 482010 642009 632008 552007 522006 642005 562004 522003 712002 622001 612000 631999 441998 481997 371996 151995 131994 241993 121992 7
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013 born 2012