Cohort progression — UKS Huragan przy SP nr 45 w Sosnowcu
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 backstroke50 breaststroke100 freestyle50 butterfly100 medley100 breaststroke100 backstroke200 freestyle100 butterfly200 medley200 breaststroke400 freestyle200 backstroke200 butterfly800 freestyle400 medley1500 freestyle
Cohorts to compare: 2016 282015 442014 292013 352012 192011 192010 62009 142008 182007 82006 52004 52002 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013