Cohort progression — MKS Oceanik Ostrzeszów
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 freestyle100 backstroke100 medley100 breaststroke50 butterfly200 freestyle200 medley400 freestyle200 backstroke100 butterfly25 backstroke25 breaststroke25 freestyle800 freestyle200 breaststroke
Cohorts to compare: 2016 72015 92014 72013 42012 72011 142010 112009 102008 82007 132006 92005 142004 152003 112002 122001 82000 71999 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014