Cohort progression — UKS Wodnik Siemianowice Śląskie
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 backstroke50 breaststroke50 butterfly100 medley100 breaststroke100 backstroke200 freestyle100 butterfly400 freestyle200 medley200 breaststroke200 backstroke200 butterfly800 freestyle400 medley1500 freestyle25 freestyle25 backstroke
Cohorts to compare: 2017 52016 472015 362014 262013 262012 352011 272010 312009 302008 412007 482006 252005 312004 432003 242002 342001 442000 381999 191998 111996 13
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014