Cohort progression — Skellefteå Simklubb
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 freestyle25 freestyle100 breaststroke100 backstroke100 medley200 freestyle25 backstroke50 butterfly25 breaststroke200 breaststroke200 backstroke400 freestyle25 butterfly100 butterfly200 medley800 freestyle200 butterfly
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015