Cohort progression — Ösmo Simsällskap
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 breaststroke50 backstroke100 freestyle50 butterfly100 medley25 freestyle100 breaststroke100 backstroke200 medley25 breaststroke25 backstroke200 freestyle100 butterfly25 butterfly200 backstroke200 breaststroke400 freestyle400 medley800 freestyle
Cohorts to compare: 2020 102019 72018 152017 222016 142015 212014 62013 152012 82011 82009 92008 32006 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017