Cohort progression — ORCA Helsinki
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 breaststroke100 backstroke50 breaststroke50 butterfly50 backstroke200 medley200 freestyle400 freestyle100 butterfly100 medley200 backstroke200 breaststroke800 freestyle200 butterfly400 medley1500 freestyle
Cohorts to compare: 2016 102015 112014 222013 132012 152011 192010 92009 92008 92007 62005 42004 41981 3
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014