Cohort progression — Loimaan Uimaseura
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle50 freestyle50 butterfly50 breaststroke100 breaststroke100 backstroke50 backstroke200 medley100 butterfly200 freestyle400 freestyle200 breaststroke100 medley200 backstroke800 freestyle200 butterfly400 medley
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013 born 2012 born 2010 born 2008