Cohort progression — UKS Siódemka Brodnica
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 breaststroke50 butterfly100 freestyle100 breaststroke50 backstroke100 butterfly25 freestyle100 backstroke100 medley200 freestyle25 breaststroke25 butterfly200 medley25 backstroke200 breaststroke400 freestyle200 backstroke200 butterfly400 medley
Cohorts to compare: 2017 62016 172015 242014 242013 352012 492011 462010 522009 292008 382007 332006 362005 362004 272003 222002 262001 312000 91999 151998 91997 51996 71995 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014