Cohort progression — Športno društvo Plavalna akademija KURENT
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 backstroke100 freestyle50 breaststroke50 butterfly100 breaststroke100 backstroke400 freestyle100 medley200 freestyle200 breaststroke100 butterfly200 medley200 backstroke200 butterfly800 freestyle400 medley25 freestyle25 backstroke25 breaststroke
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014