Cohort progression — UKS Szafir Wałbrzych
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 butterfly100 freestyle50 breaststroke100 backstroke100 breaststroke100 medley200 freestyle100 butterfly200 medley25 backstroke25 freestyle200 backstroke400 freestyle200 breaststroke25 butterfly
Cohorts to compare: 2014 52013 82012 62011 132010 212009 142008 222007 292006 212005 112004 132003 152002 82001 82000 31998 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013 born 2011