Cohort progression — HGF Svømning
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 medley100 freestyle50 butterfly50 backstroke50 breaststroke200 freestyle100 breaststroke100 backstroke200 medley100 butterfly25 backstroke200 backstroke200 breaststroke25 butterfly25 breaststroke200 butterfly25 freestyle400 freestyle400 medley
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013 born 2012 born 2011