Cohort progression — UKS OLIMPIC Warka
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 butterfly50 backstroke50 breaststroke100 breaststroke100 backstroke100 butterfly100 medley200 freestyle200 breaststroke400 freestyle200 butterfly200 medley200 backstroke25 freestyle25 backstroke25 breaststroke800 freestyle
Cohorts to compare: 2017 32016 62015 92014 52013 92012 72011 82010 102009 32008 102007 92006 112005 122004 52003 42002 62001 82000 161999 41998 61997 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014