Cohort progression — Sigma Swim Birkerød
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 butterfly100 backstroke50 breaststroke50 backstroke100 breaststroke100 medley200 medley200 freestyle100 butterfly200 breaststroke200 backstroke400 freestyle400 medley200 butterfly800 freestyle1500 freestyle25 backstroke25 freestyle
Cohorts to compare: 2018 42017 112016 162015 122014 142013 102012 102011 122010 82009 42008 82007 42002 3
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015