Cohort progression — WANKAN Legnica
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 backstroke100 backstroke50 butterfly50 breaststroke100 breaststroke200 backstroke200 freestyle100 medley100 butterfly200 medley400 freestyle200 breaststroke400 medley
Cohorts to compare: 2014 32012 42011 32010 42009 52008 52007 122006 112005 72004 82003 152002 162001 92000 91999 41997 4