Cohort progression — TMKS Champions
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 backstroke25 backstroke25 freestyle100 freestyle100 backstroke50 butterfly100 breaststroke100 medley25 breaststroke25 unknown25 butterfly
Cohorts to compare: 2017 32015 42014 182013 52012 282011 342010 362009 212008 242007 82006 82005 32004 4