Cohort progression — Umeå Simsällskap
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 breaststroke50 butterfly50 backstroke200 freestyle100 breaststroke100 backstroke100 medley400 freestyle100 butterfly25 freestyle25 breaststroke200 breaststroke200 backstroke25 backstroke200 medley25 butterfly800 freestyle200 butterfly
Cohorts to compare: 2016 82015 192014 142013 232012 312011 172010 302009 132008 192007 122006 142005 62004 72003 62002 52001 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013