Cohort progression — Föreningen Göteborg Sim
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 freestyle50 breaststroke100 freestyle50 butterfly50 backstroke100 breaststroke200 freestyle100 backstroke200 medley100 butterfly200 breaststroke400 freestyle100 medley200 backstroke800 freestyle400 medley25 butterfly200 butterfly1500 freestyle25 freestyle
Cohorts to compare: 2016 82015 112014 222013 162012 252011 152010 142009 102008 122007 32006 32005 32004 42003 42001 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014 born 2013