Cohort progression — Sundsvalls 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 backstroke50 breaststroke50 butterfly100 breaststroke100 backstroke200 freestyle100 medley100 butterfly400 freestyle200 breaststroke200 medley200 backstroke25 freestyle200 butterfly800 freestyle25 backstroke25 breaststroke200 unknown
Cohorts to compare: 2017 62016 202015 162014 182013 202012 212011 112010 122009 102008 62007 72006 42005 32003 62001 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014