Cohort progression — DELFIN Gdynia
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 freestyle100 backstroke50 butterfly50 backstroke100 butterfly100 breaststroke50 breaststroke200 freestyle200 backstroke400 freestyle100 medley200 breaststroke200 medley
Cohorts to compare: 2016 42015 72014 72013 72012 72011 62010 122009 82008 52007 132006 62005 42004 52003 32002 92001 101999 111998 31997 5