Cohort progression — Ringsted Svømme Klub
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 breaststroke50 butterfly50 backstroke100 medley100 breaststroke100 backstroke200 freestyle200 medley200 breaststroke100 butterfly200 backstroke400 freestyle400 medley25 freestyle200 butterfly25 backstroke25 butterfly25 breaststroke
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013 born 2011