Cohort progression — Landskrona 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 breaststroke100 backstroke100 medley200 freestyle100 butterfly200 medley200 breaststroke25 butterfly400 freestyle25 freestyle200 backstroke25 backstroke25 breaststroke800 freestyle400 medley
Cohorts to compare: 2017 102016 212015 202014 192013 172012 182011 112010 132009 142008 82007 112006 112005 72004 82003 42002 32001 31998 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015 born 2014