Cohort progression — MUKP Warszawianka
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 breaststroke200 freestyle100 backstroke100 breaststroke100 butterfly400 freestyle200 medley100 medley200 backstroke200 breaststroke200 butterfly800 freestyle400 medley
Cohorts to compare: 2015 52014 62013 132012 302011 242010 262009 102008 272007 352006 422005 202004 232003 82002 182001 92000 61998 61997 71996 51992 3