Cohort progression — Kungsbacka 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 backstroke100 breaststroke200 freestyle100 backstroke100 butterfly200 medley100 medley200 breaststroke400 freestyle200 backstroke200 butterfly25 freestyle25 butterfly800 freestyle1500 freestyle25 breaststroke
Cohorts to compare: 2017 112016 172015 142014 212013 232012 172011 202010 52009 142008 102007 182006 72005 72004 72003 41988 31980 31968 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014