Cohort progression — Simklubben Ägir
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 butterfly50 breaststroke200 freestyle100 medley100 backstroke100 breaststroke400 freestyle100 butterfly200 medley25 freestyle200 backstroke200 butterfly200 breaststroke25 breaststroke800 freestyle25 backstroke25 butterfly
Cohorts to compare: 2018 62017 52016 92015 112014 92013 102012 72011 72010 52008 82007 52006 32005 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015