Cohort progression — PUKS Karol Wadowice
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 breaststroke50 backstroke100 freestyle100 breaststroke50 butterfly100 backstroke100 medley200 freestyle25 backstroke200 backstroke100 butterfly25 freestyle400 freestyle200 breaststroke200 butterfly200 medley25 breaststroke
Cohorts to compare: 2011 32009 32008 62007 82006 122005 32004 122003 212002 152001 172000 141999 111998 91997 61996 31995 7