Cohort progression — Oulun Uinti 1906
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 breaststroke100 breaststroke100 backstroke50 backstroke200 freestyle100 butterfly200 medley100 medley400 freestyle200 backstroke200 breaststroke25 freestyle400 medley200 butterfly800 freestyle25 backstroke25 breaststroke
Cohorts to compare: 2016 132015 202014 212013 212012 242011 282010 262009 232008 242007 212006 132005 132004 142003 102002 102000 41992 41984 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014 born 2013