Cohort progression — Plavalni klub Novo mesto
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 freestyle100 breaststroke100 backstroke50 butterfly200 freestyle200 breaststroke100 medley25 freestyle25 breaststroke400 freestyle25 backstroke200 backstroke
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015 born 2014