Cohort progression — Svimjifelagið Ægir
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 butterfly200 freestyle100 medley100 breaststroke25 freestyle400 freestyle25 backstroke100 butterfly100 backstroke200 breaststroke200 medley800 freestyle25 breaststroke200 butterfly50 medley66 medley
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014