Cohort progression — PUKS,, Orka" Ostrów Mazowiecka
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 freestyle50 backstroke50 butterfly100 freestyle50 breaststroke25 freestyle25 backstroke100 backstroke100 medley100 breaststroke100 butterfly25 breaststroke200 medley200 freestyle200 backstroke25 butterfly400 freestyle
Cohorts to compare: 2017 92016 112015 62014 152013 142012 122011 92010 52008 92007 32006 72005 42004 112003 32002 72001 51999 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2014