Cohort progression — UKS DELFIN Tarnobrzeg
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 breaststroke50 backstroke100 medley100 breaststroke100 backstroke200 freestyle100 butterfly200 breaststroke200 medley200 backstroke400 freestyle200 butterfly1500 freestyle400 medley800 freestyle
Cohorts to compare: 2015 132014 92013 82012 112011 112010 172009 252008 182007 222006 172005 142004 252003 112002 132001 152000 131999 51998 111997 41996 61995 51974 31972 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014 born 2013 born 2012