Cohort progression — Plavalni klub Ribnica
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 butterfly100 backstroke200 freestyle100 breaststroke100 butterfly100 medley200 backstroke200 breaststroke400 freestyle200 medley25 freestyle25 backstroke25 breaststroke200 butterfly1500 freestyle800 freestyle
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015