Cohort progression — MUKP Warszawianka Wodny Park
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 butterfly50 backstroke50 breaststroke100 backstroke200 freestyle100 breaststroke100 butterfly400 freestyle200 medley200 backstroke200 breaststroke100 medley200 butterfly400 medley800 freestyle1500 freestyle
Cohorts to compare: 2016 32014 92013 122012 222011 262010 342009 102008 302007 382006 342005 82004 82003 172002 232001 262000 361999 281998 151997 111996 41993 41992 81990 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013